LT3009 Series 3µA I , 20mA Q Low Dropout Linear Regulators FEATURES DESCRIPTION n Ultralow Quiescent Current: 3μA The LT®3009 Series are micropower, low dropout voltage n Input Voltage Range: 1.6V to 20V (LDO) linear regulators. The devices supply 20mA output n Output Current: 20mA current with a dropout voltage of 280mV. No-load quiescent n Dropout Voltage: 280mV current is 3μA. Ground pin current remains at less than n Adjustable Output (V = V = 600mV) 5% of output current as load increases. In shutdown, ADJ OUT(MIN) n Fixed Output Voltages: 1.2V, 1.5V, 1.8V, 2.5V, quiescent current is less than 1μA. 3.3V, 5V The LT3009 regulators optimize stability and transient n Output Tolerance: ±2% Over Load, Line and Temperature response with low ESR ceramic capacitors, requiring a n Stable with Low ESR, Ceramic Output Capacitors minimum of only 1μF. The regulators do not require the (1μF minimum) addition of ESR as is common with other regulators. n Shutdown Current: <1μA Internal protection circuitry includes current limiting, n Current Limit Protection thermal limiting, reverse-battery protection and reverse- n Reverse-Battery Protection current protection. n Thermal Limit Protection n 8-Lead SC70 and 2mm × 2mm DFN Packages The LT3009 Series are ideal for applications that require moderate output drive capability coupled with ultralow standby power consumption. The device is available in APPLICATIONS fi xed output voltages of 1.2V, 1.5V, 1.8V, 2.5V, 3.3V and 5V, n Low Current Battery-Powered Systems and as an adjustable device with an output voltage range n Keep-Alive Power Supplies down to the 600mV reference. The LT3009 is available in n Remote Monitoring the 6-lead DFN and 8-lead SC70 packages. Utility Meters L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Hotel Door Locks TYPICAL APPLICATION 3.3V, 20mA Supply with Shutdown Dropout Voltage/Quiescent Current 500 5.0 ILOAD = 20mA VOUT 450 4.5 3.75V2 VT0IOVN 1μF INLT3009-3.O3UT 1μF 32.03mVA E (mV) 430500 DROPOUT 43..05 QUIESC AG 300 VOLTAGE 3.0 EN T T SHDNGND OUT VOL 220500 IQ 22..05 CURREN 3009 TA01a ROP 150 1.5 T (μ D A 100 1.0 ) 50 0.5 0 0 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) 3009 TA01b 3009fd 1

LT3009 Series ABSOLUTE MAXIMUM RATINGS (Note 1) IN Pin Voltage .........................................................±22V Operating Junction Temperature Range (Notes 2, 3) OUT Pin Voltage ......................................................±22V (E, I Grades) ......................................–40°C to 125°C Input-to-Output Differential Voltage ........................±22V Storage Temperature Range ...................–65°C to 150°C ADJ Pin Voltage ......................................................±22V Lead Temperature: Soldering, 10 sec SHDN Pin Voltage (Note 8) .....................................±22V SC8 Package Only .............................................300°C Output Short-Circuit Duration ..........................Indefi nite PIN CONFIGURATION TOP VIEW TOP VIEW ADJ/NC* 1 6 GND SHDN 1 8 NC OUT 2 7 5 SHDN GND 2 7 ADJ/NC* GND 3 6 OUT OUT 3 4 IN GND 4 5 IN SC8 PACKAGE DC PACKAGE 8-LEAD PLASTIC SC70 6-LEAD (2mm (cid:115) 2mm) PLASTIC DFN TJMAX = 125°C, θJA = 65°C/W TO 85°C/W** TJMAX = 125°C, θJA = 75°C/W TO 95°C/W** EXPOSED PAD (PIN 7) IS GND, MUST BE SOLDERED TO PCB * The ADJ pin is not connected in fi xed output voltage versions. ** See the Applications Information section. ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3009EDC#PBF LT3009EDC#TRPBF LCQX 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC#PBF LT3009IDC#TRPBF LCQX 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-1.2#PBF LT3009EDC-1.2#TRPBF LDTW 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-1.2#PBF LT3009IDC-1.2#TRPBF LDTW 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-1.5#PBF LT3009EDC-1.5#TRPBF LDVB 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-1.5#PBF LT3009IDC-1.5#TRPBF LDVB 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-1.8#PBF LT3009EDC-1.8#TRPBF LDKC 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-1.8#PBF LT3009IDC-1.8#TRPBF LDKC 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-2.5#PBF LT3009EDC-2.5#TRPBF LDTY 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-2.5#PBF LT3009IDC-2.5#TRPBF LDTY 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-3.3#PBF LT3009EDC-3.3#TRPBF LDKD 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-3.3#PBF LT3009IDC-3.3#TRPBF LDKD 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-5#PBF LT3009EDC-5#TRPBF LDKF 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-5#PBF LT3009IDC-5#TRPBF LDKF 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C 3009fd 2

LT3009 Series ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3009ESC8#PBF LT3009ESC8#TRPBF LCQY 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-1.2#PBF LT3009ESC8-1.2#TRPBF LDTX 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-1.5#PBF LT3009ESC8-1.5#TRPBF LDVC 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-1.8#PBF LT3009ESC8-1.8#TRPBF LDKG 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-2.5#PBF LT3009ESC8-2.5#TRPBF LDTZ 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-3.3#PBF LT3009ESC8-3.3#TRPBF LDKH 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-5#PBF LT3009ESC8-5#TRPBF LDKJ 8-Lead Plastic SC70 –40°C to 125°C LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3009EDC LT3009EDC#TR LCQX 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC LT3009IDC#TR LCQX 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-1.2 LT3009EDC-1.2#TR LDTW 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-1.2 LT3009IDC-1.2#TR LDTW 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-1.5 LT3009EDC-1.5#TR LDVB 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-1.5 LT3009IDC-1.5#TR LDVB 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-1.8 LT3009EDC-1.8#TR LDKC 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-1.8 LT3009IDC-1.8#TR LDKC 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-2.5 LT3009EDC-2.5#TR LDTY 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-2.5 LT3009IDC-2.5#TR LDTY 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-3.3 LT3009EDC-3.3#TR LDKD 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-3.3 LT3009IDC-3.3#TR LDKD 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009EDC-5 LT3009EDC-5#TR LDKF 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009IDC-5 LT3009IDC-5#TR LDKF 6-Lead (2mm × 2mm) Plastic DFN –40°C to 125°C LT3009ESC8 LT3009ESC8#TR LCQY 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-1.2 LT3009ESC8-1.2#TR LDTX 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-1.5 LT3009ESC8-1.5#TR LDVC 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-1.8 LT3009ESC8-1.8#TR LDKG 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-2.5 LT3009ESC8-2.5#TR LDTZ 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-3.3 LT3009ESC8-3.3#TR LDKH 8-Lead Plastic SC70 –40°C to 125°C LT3009ESC8-5 LT3009ESC8-5#TR LDKJ 8-Lead Plastic SC70 –40°C to 125°C Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifi cations, go to: http://www.linear.com/tapeandreel/ 3009fd 3

LT3009 Series ELECTRICAL CHARACTERISTICS The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T = 25°C. (Note 2) J PARAMETER CONDITIONS MIN TYP MAX UNITS Operating Voltage l 1.6 20 V Regulated Output Voltage (Note 4) LT3009-1.2: V = 1.7V, I = 100μA 1.188 1.2 1.212 V IN LOAD 1.7V < V < 20V, 1μA < I < 20mA l 1.176 1.2 1.224 V IN LOAD LT3009-1.5: V = 2V, I = 100μA 1.485 1.5 1.515 V IN LOAD 2V < V < 20V, 1μA < I < 20mA l 1.470 1.5 1.530 V IN LOAD LT3009-1.8: V = 2.3V, I = 100μA 1.782 1.8 1.818 V IN LOAD 2.3V < V < 20V, 1μA < I < 20mA l 1.764 1.8 1.836 V IN LOAD LT3009-2.5: V = 3V, I = 100μA 2.475 2.5 2.525 V IN LOAD 3V < V < 20V, 1μA < I < 20mA l 2.45 2.5 2.55 V IN LOAD LT3009-3.3: V = 3.8V, I = 100μA 3.267 3.3 3.333 V IN LOAD 3.8V < V < 20V, 1μA < I < 20mA l 3.234 3.3 3.366 V IN LOAD LT3009-5: V = 5.5V, I = 100μA 4.950 5 5.050 V IN LOAD 3.8V < V < 20V, 1μA < I < 20mA l 4.900 5 5.100 V IN LOAD ADJ Pin Voltage (Notes 3, 4) V = 1.6V, I = 100μA 594 600 606 mV IN LOAD 1.6V < V < 20V, 1μA < I < 20mA l 588 600 612 mV IN LOAD Line Regulation (Note 3) LT3009-1.2: (cid:31)VIN = 1.7V to 20V, ILOAD = 1mA l 0.8 3.0 mV LT3009-1.5: (cid:31)VIN = 2.0V to 20V, ILOAD = 1mA l 1.0 3.8 mV LT3009-1.8: (cid:31)VIN = 2.3V to 20V, ILOAD = 1mA l 1.2 4.5 mV LT3009-2.5: (cid:31)VIN = 3.0V to 20V, ILOAD = 1mA l 1.7 6.3 mV LT3009-3.3: (cid:31)VIN = 3.8V to 20V, ILOAD = 1mA l 2.2 8.3 mV LT3009-5: (cid:31)VIN = 5.5V to 20V, ILOAD = 1mA l 3.3 12.5 mV LT3009: (cid:31)VIN = 1.6V to 20V, ILOAD = 1mA l 0.4 1.5 mV Load Regulation (Note 3) LT3009-1.2: V = 1.7V, I = 1μA to 20mA l 1.4 6 mV IN LOAD LT3009-1.5: V = 2V, I = 1μA to 20mA l 1.8 7.5 mV IN LOAD LT3009-1.8: V = 2.3V, I = 1μA to 20mA l 2.1 9.0 mV IN LOAD LT3009-2.5: V = 3V, I = 1μA to 20mA l 2.9 12.5 mV IN LOAD LT3009-3.3: V = 3.8V, I = 1μA to 20mA l 3.9 16.5 mV IN LOAD LT3009-5: V = 5.5V, I = 1μA to 20mA l 5.8 25 mV IN LOAD LT3009: V = 1.6V, I = 1μA to 20mA l 0.7 3 mV IN LOAD Dropout Voltage I = 100μA 115 180 mV LOAD V = V (Notes 5, 6) I = 100μA l 250 mV IN OUT(NOMINAL) LOAD I = 1mA 170 250 mV LOAD I = 1mA l 350 mV LOAD I = 10mA 250 310 mV LOAD I = 10mA l 410 mV LOAD I = 20mA 280 350 mV LOAD I = 20mA l 450 mV LOAD Quiescent Current (Notes 6, 7) I = 0μA 3 μA LOAD I = 0μA l 6 μA LOAD GND Pin Current I = 0μA l 3 6 μA LOAD V = V + 0.5V (Notes 6, 7) I = 100μA l 6 12 μA IN OUT(NOMINAL) LOAD I = 1mA l 23 50 μA LOAD I = 10mA l 200 500 μA LOAD I = 20mA l 450 1000 μA LOAD 3009fd 4

LT3009 Series ELECTRICAL CHARACTERISTICS The l denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at T = 25°C. (Note 2) J PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage Noise (Note 9) C = 1μF, I = 20mA, BW = 10Hz to 100kHz 150 μV OUT LOAD RMS ADJ Pin Bias Current l –10 0.3 10 nA Shutdown Threshold V = Off to On l 0.66 1.5 V OUT V = On to Off l 0.2 0.36 V OUT SHDN Pin Current V = 0V, V = 20V l ±1 μA SHDN IN V = 20V, V = 20V l 0.5 1.6 μA SHDN IN Quiescent Current in Shutdown V = 6V, V = 0V l <1 μA IN SHDN Ripple Rejection (Note 3) V – V = 1.5V, V = 0.5V , IN OUT RIPPLE P-P f = 120Hz, I = 20mA RIPPLE LOAD LT3009 60 72 dB LT3009-1.2 57 68 dB LT3009-1.5 55.5 67 dB LT3009-1.8 54 66 dB LT3009-2.5 52 63 dB LT3009-3.3 49 61 dB LT3009-5 44 56 dB Current Limit V = 20V, V = 0 60 mA IN OUT VIN = VOUT(NOMINAL) + 1V, (cid:31)VOUT = –5% l 22 mA Input Reverse Leakage Current V = –20V, V = 0 l 200 350 μA IN OUT Reverse Output Current V = 1.2V, V = 0 0.6 10 μA OUT IN Note 1: Stresses beyond those listed under Absolute Maximum Ratings the output voltage equals (V – V ). For the LT3009-1.2, dropout IN DROPOUT may cause permanent damage to the device. Exposure to any Absolute voltage will be limited by the minimum input voltage under some voltage/ Maximum Rating condition for extended periods may affect device load conditions. reliability and lifetime. Note 6: To satisfy minimum input voltage requirements, the LT3009 Note 2: The LT3009 regulators are tested and specifi ed under pulse adjustable version is tested and specifi ed for these conditions with an load conditions such that T ≈ T . The LT3009E is guaranteed to meet external resistor divider (61.9k bottom, 280k top) which sets V to 3.3V. J A OUT performance specifi cations from 0°C to 125°C operating junction The external resistor divider adds 9.69μA of DC load on the output. This temperature. Specifi cations over the –40 °C to 125°C operating junction external current is not factored into GND pin current. temperature range are assured by design, characterization and correlation Note 7: GND pin current is tested with V = V + 0.5V and a IN OUT(NOMINAL) with statistical process controls. The LT3009I is guaranteed over the full current source load. GND pin current will increase in dropout. For the fi xed –40°C to 125°C operating junction temperature range. output voltage versions, an internal resistor divider will add to the GND Note 3: The LT3009 adjustable version is tested and specifi ed for these pin current ((cid:31)2μA for the LT3009-5, (cid:31)1μA for the LT3009-1.2, LT3009-1.5, conditions with the ADJ pin connected to the OUT pin. LT3009-1.8, LT3009-2.5 and LT3009-3.3). See the GND Pin Current curves Note 4: Operating conditions are limited by maximum junction temperature. in the Typical Performance Characteristics section. The regulated output voltage specifi cation will not apply for all possible Note 8: The SHDN pin can be driven below GND only when tied to the IN combinations of input voltage and output current. When operating at the pin directly or through a pull-up resistor. If the SHDN pin is driven below maximum input voltage, the output current range must be limited. When GND by more than –0.3V while IN is powered, the output will turn on. operating at the maximum output current, the input voltage must be limited. Note 9: Output noise is listed for the adjustable version with the ADJ pin Note 5: Dropout voltage is the minimum input to output voltage differential connected to the OUT pin. See the RMS Output Noise vs Load Current needed to maintain regulation at a specifi ed output current. In dropout, curve in the Typical Performance Characteristics Section. 3009fd 5

LT3009 Series TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A Dropout Voltage Dropout Voltage Minimum Input Voltage 450 450 1.6 ILOAD = 20mA ILOAD = 20mA 400 400 1.4 mV)350 TA = 125°C mV)350 GE (V)1.2 GE (300 TA = 25°C GE (300 20mA 10mA OLTA 1 OLTA250 OLTA250 UT V 0.8 OUT V200 OUT V200 1mA 100μA M INP0.6 P150 P150 U O O M DR100 DR100 MINI 0.4 0.2 50 50 0 0 0 0 5 10 15 20 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 OUTPUT CURRENT (mA) TEMPERATURE (°C) TEMPERATURE (°C) 3009 G01 3009 G02 3009 G03 Output Voltage Output Voltage ADJ Pin Voltage LT3009-1.2 LT3009-1.5 0.612 1.224 1.530 0.610 ILOAD = 100μA 1.220 ILOAD = 100μA 1.525 ILOAD = 100μA 0.608 1.216 1.520 0.606 1.212 1.515 AGE (V)00..660042 AGE (V)11..220084 AGE (V)11..551005 OLT0.600 OLT1.200 OLT1.500 V V V PIN 0.598 PUT 1.196 PUT 1.495 DJ 0.596 UT1.192 UT1.490 A0.594 O1.188 O1.485 0.592 1.184 1.480 0.590 1.180 1.475 0.588 1.176 1.470 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3009 G27 3009 G28 3009 G04 Output Voltage Output Voltage Output Voltage LT3009-1.8 LT3009-2.5 LT3009-3.3 1.836 2.55 3.366 1.830 ILOAD = 100μA 2.54 ILOAD = 100μA 3.355 ILOAD = 100μA 1.824 3.344 2.53 1.818 3.333 V) V) 2.52 V) AGE (11..881026 AGE ( 2.51 AGE (33..332121 OLT1.800 OLT 2.50 OLT3.300 V V V UT 1.794 UT 2.49 UT 3.289 UTP1.788 UTP 2.48 UTP3.278 O1.782 O O3.267 2.47 1.776 3.256 1.770 2.46 3.245 1.764 2.45 3.234 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3009 G29 3009 G05 3009 G06 3009fd 6

LT3009 Series TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A Output Voltage Adjustable Version LT3009-5 ADJ Pin Bias Current Quiescent Current 5.100 10 6 ILOAD = 100μA 8 5.075 5 OUTPUT VOLTAGE (V)55544.....000995205705005 J PIN BIAS CURRENT (nA) ––046422 UIESCENT CURRENT (μA) 324 AD –6 Q 1 4.925 –8 4.900 –10 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) 3009 G07 3009 G08 3009 G09 GND Pin Current Quiescent Current Quiescent Current LT3009-1.2 20 20 500 LT3009-1.2 LT3009-2.5 18 LT3009-1.5 18 LT3009-3.3 450 LT3009-1.8 LT3009-5 NT (μA) 1146 NT (μA) 1146 T (μA)345000 RL = 60Ω, IL = 20mA RE 12 RE 12 EN300 R R R CU 10 CU 10 UR250 UIESCENT 86 UIESCENT 86 GND PIN C210500 RL = 120Ω, IL = 10mA Q 4 Q 4 100 RL = 12k, IL = 100μA 2 2 50 RL = 1.2k, IL = 1mA 0 0 0 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3009 G10 3009 G30 3009 G31 3009fd 7

LT3009 Series TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A GND Pin Current GND Pin Current GND Pin Current LT3009-1.5 LT3009-1.8 LT3009-2.5 500 500 500 450 450 450 400 RL = 75Ω, IL = 20mA 400 RL = 90Ω, IL = 20mA 400 RL = 125Ω, IL = 20mA μA)350 μA)350 μA)350 T ( T ( T ( N300 N300 N300 E E E R R R UR250 UR250 UR250 C C C PIN 200 RL = 150Ω, IL = 10mA PIN 200 RL = 180Ω, IL = 10mA PIN 200 RL = 250Ω, IL = 10mA ND 150 ND 150 ND 150 G G G 100 RL = 15k, IL = 100μA 100 RL = 18k, IL = 100μA 100 RL = 25k, IL = 100μA 50 RL = 1.5k, IL = 1mA 50 RL = 1.8k, IL = 1mA 50 RL = 2.5k, IL = 1mA 0 0 0 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 INPUT VOLTAGE (V) INPUT VOLTAGE (V) INPUT VOLTAGE (V) 3009 G32 3009 G11 3009 G33 GND Pin Current GND Pin Current LT3009-3.3 LT3009-5 GND Pin Current vs ILOAD 500 450 1000 RL = 250Ω, IL = 20mA VIN = 3.8V 450 RL = 165Ω, IL = 20mA 400 VOUT = 3.3V 400 350 N CURRENT (μA)223350500000 RL = 330Ω, IL = 10mA N CURRENT (μA)223500000 RL = 500Ω, IL = 10mA CURRENT (μA)100 PI PI D ND 150 ND 150 GN 10 G G 100 100 RL = 33k, IL = 100μA RL = 50k, IL = 100μA 50 RL = 3.3k, IL = 1mA 50 RL = 5k, IL = 1mA 0 0 1 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0.001 0.01 0.1 1 10 100 INPUT VOLTAGE (V) INPUT VOLTAGE (V) LOAD (mA) 3009 G12 3009 G13 3009 G14 3009fd 8

LT3009 Series TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A SHDN Pin Thresholds SHDN Pin Input Current SHDN Pin Input Current 500 1600 1.4 VSHDN = 20V HDN PIN THRESHOLD VOLTAGE (V) 010001......206482 OONFF T TOO O OFNF SHDN PIN INPUT CURRENT (nA) 342123410000555500000000 SHDN PIN INPUT CURRENT (nA)111204648200000000000000 S 50 0 0 0 –50 –25 0 25 50 75 100 125 150 0 2 4 6 8 10 12 14 16 18 20 –50 –25 0 25 50 75 100 125 150 TEMPERATURE (°C) SHDN PIN VOLTAGE (V) TEMPERATURE (°C) 3009 G15 3009 G16 3009 G17 Current Limit Reverse Output Current Input Ripple Rejection 70 50 90 OUT = ADJ = 1.2V VIN = 2V + 50mVRMS MIT (mA) 546000 VVIINN == 12.06VV CURRENT (μA) 34435050 IN = SHDN = GND JECTION (dB) 56780000 VILOOUATD == 62000mmAV RENT LI 30 OUTPUT 2250 OUT PPLE RE 40 4.7μF CUR 20 RSE 15 UT RI 30 10 REVE 10 ADJ INP 20 1μF 5 10 0 0 0 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k 1M TEMPERATURE (°C) TEMPERATURE (°C) FREQUENCY (Hz) 3009 G18 3009 G19 3009 G20 3009fd 9

LT3009 Series TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A Input Ripple Rejection Load Regulation Output Noise Spectral Density 80 3.0 100 70 2.5 VΔOILU =T 1=μ 6A0 0TmO V20mA √Hz) 53V.3V N (dB) 60 mV) 2.0 VIN = 1.6V SITY (μV 211...585VVV RIPPLE REJECTIO 534000 D REGULATION ( 101...550 E SPECTRAL DEN 101 110.V.26VV PUT 20 LOA 0 NOIS IN 10 RVIINP P=L VEO AUTT f( N=O 1M20INHAzL) + 1V + 0.5VP-P –0.5 PUT T 0 ILOAD = 20mA –1.0 OU 0.1 –50 –25 0 25 50 75 100 125 150 –50 –25 0 25 50 75 100 125 150 10 100 1k 10k 100k TEMPERATURE (°C) TEMPERATURE (°C) FREQUENCY (Hz) 3009 G23 3009 G21 3009 G22 RMS Output Noise vs Load Current (10Hz to 100kHz) Transient Response Transient Response 700 5V IOUT = 1mA TO 20mA IOUT = 1mA TO 20mA 600 VVIONU =T =5 .55VV VVIONU =T =5 .55VV V)RMS500 3.3V 50mVV/ODUIVT COUT = 1μF 50mVV/ODUIVT COUT = 4.7μF μ SE ( 400 2.5V OI T N 300 1.8V U UTP 200 1.5V IOUT IOUT O 1.2V 20mA/DIV 20mA/DIV 100 600mV 500μs/DIV 3009 G25 500μs/DIV 3009 G26 0 0.001 0.01 0.1 1 10 100 ILOAD (mA) 3009 G24 3009fd 10

LT3009 Series PIN FUNCTIONS (SC70/DFN) SHDN (Pin 1/Pin 5): Shutdown. Pulling the SHDN pin OUT (Pin 6/Pins 2, 3): Output. This pin supplies power to low puts the LT3009 into a low power state and turns the the load. Use a minimum output capacitor of 1μF to prevent output off. If unused, tie the SHDN pin to V . The LT3009 oscillations. Large load transient applications require larger IN does not function if the SHDN pin is not connected. The output capacitors to limit peak voltage transients. See the SHDN pin cannot be driven below GND unless tied to the Applications Information section for more information on IN pin. If the SHDN pin is driven below GND while IN is output capacitance and reverse output characteristics. powered, the output will turn on. SHDN pin logic cannot ADJ (Pin 7/Pin 1): Adjust. This pin is the error amplifi er’s be referenced to a negative rail. inverting terminal. Its 300pA typical input bias current GND (Pins 2, 3, 4/Pin 6): Ground. Connect the bottom fl ows out of the pin (see curve of ADJ Pin Bias Current vs of the resistor divider that sets output voltage directly to Temperature in the Typical Performance Characteristics GND for the best regulation. section). The ADJ pin voltage is 600mV referenced to GND and the output voltage range is 600mV to 19.5V. This pin IN (Pin 5/Pin 4): Input. The IN pin supplies power to the is not connected in the fi xed output voltage versions. device. The LT3009 requires a bypass capacitor at IN if the device is more than six inches away from the main NC (Pins 7, 8/Pin 1): No Connect. For the adjustable voltage input fi lter capacitor. In general, the output impedance version, Pin 8 is an NC pin in the SC70 package. For the of a battery rises with frequency, so it is advisable to fi xed voltage versions, Pin 7 and Pin 8 are NC pins in the include a bypass capacitor in battery-powered circuits. A SC70 package, and Pin 1 is an NC pin in the DFN package. bypass capacitor in the range of 0.1μF to 10μF will suf- NC pins are not tied to any internal circuitry. They may be fi ce. The LT3009 withstands reverse voltages on the IN fl oated, tied to V or tied to GND. IN pin with respect to ground and the OUT pin. In the case Exposed Pad (Pin 7, DFN Package Only): Ground. The of a reversed input, which occurs with a battery plugged Exposed Pad (backside) of the DFN package is an electri- in backwards, the LT3009 acts as if a large resistor is in cal connection to GND. To ensure optimum performance, series with its input. Limited reverse current fl ows into solder Pin 7 to the PCB and tie directly to Pin 6. the LT3009 and no reverse voltage appears at the load. The device protects both itself and the load. 3009fd 11

LT3009 Series APPLICATIONS INFORMATION The LT3009 is a low dropout linear regulator with ultra- Specifi cations for output voltages greater than 0.6V are low quiescent current and shutdown. Quiescent current is proportional to the ratio of the desired output voltage to extremely low at 3μA and drops well below 1μA in shut- 0.6V: V /0.6V. For example, load regulation for an output OUT down. The device supplies up to 20mA of output current. current change of 100μA to 20mA is –0.7mV typical at Dropout voltage at 20mA is typically 280mV. The LT3009 V = 0.6V. At V = 5V, load regulation is: OUT OUT incorporates several protection features, making it ideal for 5V use in battery-powered systems. The device protects itself •(−0.7mV)=−5.83mV against both reverse-input and reverse-output voltages. 0.6V In battery backup applications, where a backup battery Table 1 shows resistor divider values for some com- holds up the output when the input is pulled to ground, mon output voltages with a resistor divider current of the LT3009 acts as if a blocking diode is in series with its about 1μA. output and prevents reverse current fl ow. In applications where the regulator load returns to a negative supply, the Table 1. Output Voltage Resistor Divider Values output can be pulled below ground by as much as 22V V R1 R2 OUT without affecting startup or normal operation. 1V 604k 402k 1.2V 604k 604k Adjustable Operation 1.5V 590k 887k The LT3009 has an output voltage range of 0.6V to 19.5V. 1.8V 590k 1.18M Figure 1 shows that output voltage is set by the ratio of two 2.5V 590k 1.87M external resistors. The IC regulates the output to maintain 3V 590k 2.37M the ADJ pin voltage at 600mV referenced to ground. The 3.3V 619k 2.8M current in R1 equals 600mV/R1 and the current in R2 is 5V 590k 4.32M the current in R1 minus the ADJ pin bias current. The ADJ pin bias current, typically 300pA at 25°C, fl ows out Because the ADJ pin is relatively high impedance (de- of the pin. Calculate the output voltage using the formula pending on the resistor divider used), stray capacitances in Figure 1. An R1 value of 619k sets the divider current at this pin should be minimized. Special attention should to 0.97μA. Do not make R1’s value any greater than 619k be given to any stray capacitances that can couple ex- to minimize output voltage errors due to the ADJ pin bias ternal signals onto the ADJ pin producing undesirable current and to insure stability under minimum load condi- output transients or ripple. tions. In shutdown, the output turns off and the divider Extra care should be taken in assembly when using high current is zero. Curves of ADJ Pin Voltage vs Temperature valued resistors. Small amounts of board contamination and ADJ Pin Bias Current vs Temperature appear in the can lead to signifi cant shifts in output voltage. Appro- Typical Performance Characteristics. priate post-assembly board cleaning measures should VOUT = 600mV* (1 + R2/R1) – (IADJ • R2) IN OUT VOUT VADJ = 600mV VIN LT3009 R2 IADJ = 0.3nA at 25°C OUTPUT RANGE = 0.6V to 19.5V SHDN ADJ GND R1 3009F0 Figure 1. Adjustable Operation 3009fd 12

LT3009 Series APPLICATIONS INFORMATION be implemented to prevent board contamination. If the are specifi ed with EIA temperature characteristic codes board is to be subjected to humidity cycling or if board of Z5U, Y5V, X5R and X7R. The Z5U and Y5V dielectrics cleaning measures cannot be guaranteed, consideration provide high C-V products in a small package at low cost, should be given to using resistors an order of magnitude but exhibit strong voltage and temperature coeffi cients as smaller than in Table 1 to prevent contamination from shown in Figures 2 and 3. When used with a 5V regulator, causing unwanted shifts in the output voltage. a 16V 10μF Y5V capacitor can exhibit an effective value as low as 1μF to 2μF for the DC bias voltage applied and Output Capacitance and Transient Response over the operating temperature range. The X5R and X7R dielectrics yield more stable characteristics and are more The LT3009 is stable with a wide range of output capaci- suitable for use as the output capacitor. The X7R type has tors. The ESR of the output capacitor affects stability, most better stability across temperature, while the X5R is less notably with small capacitors. Use a minimum output expensive and is available in higher values. One must still capacitor of 1μF with an ESR of 3(cid:31) or less to prevent os- exercise care when using X5R and X7R capacitors; the cillations. The LT3009 is a micropower device and output X5R and X7R codes only specify operating temperature load transient response is a function of output capacitance. range and maximum capacitance change over temperature. Larger values of output capacitance decrease the peak Capacitance change due to DC bias with X5R and X7R deviations and provide improved transient response for capacitors is better than Y5V and Z5U capacitors, but can larger load current changes. still be signifi cant enough to drop capacitor values below Give extra consideration to the use of ceramic capacitors. appropriate levels. Capacitor DC bias characteristics tend Manufacturers make ceramic capacitors with a variety of to improve as component case size increases, but expected dielectrics, each with different behavior across tempera- capacitance at operating voltage should be verifi ed. ture and applied voltage. The most common dielectrics 20 40 BOTH CAPACITORS ARE 16V, 1210 CASE SIZE, 10μF 20 0 %) X5R %) 0 X5R E (–20 E ( U U AL AL –20 V V N –40 N GE I GE I –40 Y5V N N A–60 A CH Y5V CH –60 –80 –80 BOTH CAPACITORS ARE 16V, 1210 CASE SIZE, 10μF –100 –100 0 2 4 6 8 10 12 14 16 –50 –25 0 25 50 75 100 125 DC BIAS VOLTAGE (V) TEMPERATURE (°C) 3009 F02 3009 F03 Figure 2. Ceramic Capacitor DC Bias Characteristics Figure 3. Ceramic Capacitor Temperature Characteristics 3009fd 13

LT3009 Series APPLICATIONS INFORMATION Voltage and temperature coeffi cients are not the only Thermal Considerations sources of problems. Some ceramic capacitors have a The LT3009’s maximum rated junction temperature of piezoelectric response. A piezoelectric device generates 125°C limits its power-handling capability. Two components voltage across its terminals due to mechanical stress, comprise the power dissipated by the device: similar to the way a piezoelectric accelerometer or micro- phone works. For a ceramic capacitor, the stress can be 1. Output current multiplied by the input/output voltage differential: I • (V – V ) induced by vibrations in the system or thermal transients. OUT IN OUT The resulting voltages produced can cause appreciable 2. GND pin current multiplied by the input voltage: amounts of noise, especially when a ceramic capacitor is I • V GND IN used for noise bypassing. A ceramic capacitor produced GND pin current is found by examining the GND Pin Cur- Figure 4’s trace in response to light tapping from a pencil. rent curves in the Typical Performance Characteristics Similar vibration induced behavior can masquerade as section. Power dissipation equals the sum of the two increased output voltage noise. components listed prior. The LT3009 regulator has internal thermal limiting designed VOUT = 0.6V to protect the device during overload conditions. For con- COUT = 22μF ILOAD = 10μA tinuous normal conditions, do not exceed the maximum junction temperature rating of 125°C. Carefully consider VOUT all sources of thermal resistance from junction to ambi- 500μV/DIV ent including other heat sources mounted in proximity to the LT3009. For surface mount devices, heat sinking is accomplished by using the heat spreading capabilities of the PC board and its copper traces. Copper board stiffeners 3009 F04 100ms/DIV and plated through-holes can also be used to spread the Figure 4. Noise Resulting from Tapping heat generated by power devices. on a Ceramic Capacitor 3009fd 14

LT3009 Series APPLICATIONS INFORMATION The following tables list thermal resistance for several dif- Calculating Junction Temperature ferent board sizes and copper areas. All measurements Example: Given an output voltage of 3.3V, an input volt- were taken in still air on 3/32" FR-4 board with one ounce age range of 12V ±5%, an output current range of 0mA copper. to 20mA and a maximum ambient temperature of 85°C, what will the maximum junction temperature be for an Table 2: Measured Thermal Resistance for DC Package application using the DC package? COPPER AREA BOARD THERMAL RESISTANCE The power dissipated by the device is equal to: TOPSIDE* BACKSIDE AREA (JUNCTION-TO-AMBIENT) 2500mm2 2500mm2 2500mm2 65°C/W I (V – V ) + I (V ) OUT(MAX) IN(MAX) OUT GND IN(MAX) 1000mm2 2500mm2 2500mm2 70°C/W where, 225mm2 2500mm2 2500mm2 75°C/W I = 20mA 100mm2 2500mm2 2500mm2 80°C/W OUT(MAX) 50mm2 2500mm2 2500mm2 85°C/W VIN(MAX) = 12.6V *Device is mounted on the topside. I at (I = 20mA, V = 12.6V) = 0.45mA GND OUT IN Table 3: Measured Thermal Resistance for SC70 Package So, COPPER AREA BOARD THERMAL RESISTANCE P = 20mA(12.6V – 3.3V) + 0.45mA(12.6V) = 191.7mW TOPSIDE* BACKSIDE AREA (JUNCTION-TO-AMBIENT) The thermal resistance will be in the range of 65°C/W to 2500mm2 2500mm2 2500mm2 75°C/W 85°C/W depending on the copper area. So the junction 1000mm2 2500mm2 2500mm2 80°C/W temperature rise above ambient will be approximately 225mm2 2500mm2 2500mm2 85°C/W equal to: 100mm2 2500mm2 2500mm2 90°C/W 50mm2 2500mm2 2500mm2 95°C/W 0.1917W(75°C/W) = 14.4°C *Device is mounted on the topside. The maximum junction temperature equals the maximum junction temperature rise above ambient plus the maximum ambient temperature or: T = 85°C + 14.4°C = 99.4°C J(MAX) 3009fd 15

LT3009 Series APPLICATIONS INFORMATION Protection Features in (but is limited by) the resistor divider that sets output voltage. Current fl ows from the bottom resistor in the The LT3009 incorporates several protection features that divider and from the ADJ pin’s internal clamp through the make it ideal for use in battery-powered circuits. In ad- top resistor in the divider to the external circuitry pulling dition to the normal protection features associated with OUT below ground. If IN is powered by a voltage source, monolithic regulators, such as current limiting and thermal OUT sources current equal to its current limit capability limiting, the device also protects against reverse-input and the LT3009 protects itself by thermal limiting if neces- voltages, reverse-output voltages and reverse output-to- sary. In this case, grounding the SHDN pin turns off the input voltages. LT3009 and stops OUT from sourcing current. Current limit protection and thermal overload protection The LT3009 incurs no damage if the ADJ pin is pulled protect the device against current overload conditions at above or below ground by 22V. If IN is left open circuit or the output of the device. For normal operation, do not grounded, ADJ acts like a 100k resistor in series with a exceed a junction temperature of 125°C. diode when pulled above or below ground. The LT3009 IN pin withstands reverse voltages of 22V. The In circuits where a backup battery is required, several device limits current fl ow to less than 1mA (typically less different input/output conditions can occur. The output than 220μA) and no negative voltage appears at OUT. The voltage may be held up while the input is either pulled device protects both itself and the load against batteries to ground, pulled to some intermediate voltage or is left that are plugged in backwards. open circuit. Current fl ow back into the output follows the The SHDN pin cannot be driven below GND unless tied to curve shown in Figure 5. the IN pin. If the SHDN pin is driven below GND while IN If the LT3009 IN pin is forced below the OUT pin or the is powered, the output will turn on. SHDN pin logic cannot OUT pin is pulled above the IN pin, input current typically be referenced to a negative rail. drops to less than 1μA. This occurs if the LT3009 input is The LT3009 incurs no damage if OUT is pulled below connected to a discharged (low voltage) battery and either ground. If IN is left open circuit or grounded, OUT can be a backup battery or a second regulator circuit holds up pulled below ground by 22V. No current fl ows from the the output. The state of the SHDN pin has no effect in the pass transistor connected to OUT. However, current fl ows reverse current if OUT is pulled above IN. 100 90 80 A) T (μ 70 ADJ CURRENT EN 60 R R U 50 C SE 40 R E V 30 E R 20 OUT CURRENT 10 0 0 1 2 3 4 5 6 7 8 9 10 OUTPUT AND ADJ VOLTAGE (V) 3009 F05 Figure 5. Reverse Output Current 3009fd 16

LT3009 Series TYPICAL APPLICATIONS Keep-Alive Power Supply NO PROTECTION DIODES NEEDED! VIN IN OUT 3.3V 12V 1μF LT3009-3.3 1μF LOAD: SHDN SYSTEM MONITOR, VOLATILE MEMORY, ETC. GND 3009 TA02 Last-Gasp Circuit VLINE LINE POWER SENSE 12V TO 15V DCHARGE LINE INTERRUPT RLIMIT DETECT 5V TO IN OUT PWR FAULT MONITORING CENTER SUPERCAP 1μF LT3009-5 1μF GND 3009 TA03 SHDN GND PACKAGE DESCRIPTION DC6 Package 6-Lead Plastic DFN (2mm × 2mm) (Reference LTC DWG # 05-08-1703 Rev B) R = 0.125 0.40 ±0.10 TYP 0.56 ±0.05 4 6 0.70 ±0.05 (2 SIDES) 2.55 ±0.05 1.15 ±0.050.61 ±0.05 2.00 ±0.10 PIN 1 NOTCH (2 SIDES) PIN 1 BAR (4 SIDES) R = 0.20 OR PACKAGE TOP MARK 0.25 × 45° OUTLINE (SEE NOTE 6) CHAMFER R = 0.05 (DC6) DFN REV B 1309 TYP 3 1 0.25 ±0.05 0.25 ±0.05 0.50 BSC 0.200 REF 0.75 ±0.05 0.50 BSC 1.42 ±0.05 1.37 ±0.05 (2 SIDES) (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS 0.00 – 0.05 BOTTOM VIEW—EXPOSED PAD NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WCCD-2) 5. EXPOSED PAD SHALL BE SOLDER PLATED 2. DRAWING NOT TO SCALE 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE 3. ALL DIMENSIONS ARE IN MILLIMETERS TOP AND BOTTOM OF PACKAGE 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE 3009fd 17

LT3009 Series PACKAGE DESCRIPTION SC8 Package 8-Lead Plastic SC70 (Reference LTC DWG # 05-08-1639 Rev Ø) 0.30 0.50 1.80 – 2.20 MAX REF (NOTE 4) PIN 8 1.00 REF INDEX AREA (NOTE 6) 1.15 – 1.35 2.8 BSC 1.8 REF 1.80 – 2.40 (NOTE 4) PIN 1 RECOMMENDED SOLDER PAD LAYOUT 0.15 – 0.27 0.50 BSC PER IPC CALCULATOR 8 PLCS (NOTE 3) 0.10 – 0.40 0.80 – 1.00 0.00 – 0.10 REF 1.00 MAX GAUGE PLANE 0.15 BSC 0.26 – 0.46 0.10 – 0.18 SC8 SC70 0905 REV Ø (NOTE 3) NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6. DETAILS OF THE PIN 1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE INDEX AREA 7. EIAJ PACKAGE REFERENCE IS EIAJ SC-70 AND JEDEC MO-203 VARIATION BA 3009fd 18

LT3009 Series REVISION HISTORY (Revision history begins at Rev D) REV DATE DESCRIPTION PAGE NUMBER D 04/12 Clarifi ed E-Grade Operating Temperature 5 3009fd Information furnished by Linear Technology Corporation is believed to be accurate and reliable. 19 However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

LT3009 Series RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1761 100mA, Low Noise Micropower LDO V : 1.8V to 20V, V = 1.22V, V = 0.3V, I = 20μA, I < 1μA, Low Noise < 20μV , IN OUT DO Q SD RMS Stable with 1μF Ceramic Capacitors, ThinSOTTM Package LT1762 150mA, Low Noise Micropower LDO V : 1.8V to 20V, V = 1.22V, V = 0.3V, I = 25μA, I < 1μA, Low Noise < 20μV , IN OUT DO Q SD RMS MS8 Package LT1763 500mA, Low Noise Micropower LDO V : 1.8V to 20V, V = 1.22V, V = 0.3V, I = 30μA, I < 1μA, Low Noise < 20μV , IN OUT DO Q SD RMS S8 Package LT1764/LT1764A 3A, Low Noise, Fast Transient V : 2.7V to 20V, V = 1.21V, V = 0.34V, I = 1mA, I < 1μA, Low Noise < 40μV , IN OUT DO Q SD RMS Response LDOs “A” Version Stable with Ceramic Capacitors, DD and TO220-5 Packages LTC1844 150mA, Low Noise Micropower VLDO V : 1.6V to 6.5V, V = 1.25V, V = 0.09V, I = 35μA, I < 1μA, IN OUT(MIN) DO Q SD Low Noise: < 30μV , ThinSOT Package RMS LT1962 300mA, Low Noise Micropower LDO V : 1.8V to 20V, V = 1.22V, V = 0.27V, I = 30μA, I < 1μA, IN OUT(MIN) DO Q SD Low Noise: < 20μV , MS8 Package RMS LT1963/LT1963A 1.5A, Low Noise, Fast Transient V : 2.1V to 20V, V = 1.21V, V = 0.34V, I = 1mA, I < 1μA, IN OUT(MIN) DO Q SD Response LDOs Low Noise: < 40μV , “A” Version Stable with Ceramic Capacitors, DD, TO220-5, RMS SOT223 and S8 Packages LT1964 200mA, Low Noise Micropower, V : –2.2V to –20V, V = 1.21V, V = 0.34V, I = 30μA, I = 3μA, IN OUT(MIN) DO Q SD Negative LDO Low Noise: < 30μV , Stable with Ceramic Capacitors,ThinSOT Package RMS LT3010 50mA, High Voltage, Micropower LDO V : 3V to 80V, V = 1.275V, V = 0.3V, I = 30μA, I < 1μA, IN OUT(MIN) DO Q SD Low Noise: < 100μV , Stable with 1μF Output Capacitor, MS8E Package RMS LT3012/LT3012B 250mA, High Voltage, Micropower LDOs V : 4V to 80V, V = 1.24V, V = 0.4V, I = 40μA, I < 1μA, IN OUT(MIN) DO Q SD Low Noise: <100μVRMS, Stable with 3.3μF Output Capacitor, 12-Lead 4mm × 3mm DFN and 16-Lead FE Packages LT3013/LT3013B 250mA, High Voltage, Micropower LDOs V : 4V to 80V, V = 1.22V, V = 0.4V, I = 40μA, I < 1μA, IN OUT(MIN) DO Q SD with PWRGD Low Noise: < 100μV , Stable with 3.3μF Output Capacitor, RMS 12-Lead 4mm × 3mm DFN and 16-Lead FE Packages LT3014/LT3014B 20mA, High Voltage, Micropower LDO V : 3V to 80V, V = 1.2V, V = 0.35V, I = 7μA, I < 1μA, IN OUT(MIN) DO Q SD Low Noise: < 100μV , Stable with 0.47μF Output Capacitor, SOT23-5 and RMS 3mm × 3mm DFN Packages LT3020 100mA, Low Voltage VLDO VIN: 0.9V to 10V, VOUT(MIN) = 0.20V, VDO = 0.15V, IQ = 120μA, ISD < 1μA, 3mm × 3mm DFN and MS8 Packages LT3021 500mA, Low Voltage VLDO VIN: 0.9V to 10V, VOUT(MIN) = 0.20V, VDO = 0.16V, IQ = 120μA, ISD < 3μA, 5mm × 5mm DFN and SO8 Packages LT3023 Dual 100mA, Low Noise, V : 1.8V to 20V, V = 1.22V, V = 0.30V, I = 40μA, I < 1μA, DFN and IN OUT(MIN) DO Q SD Micropower LDO MS10 Packages LT3024 Dual 100mA/500mA, Low Noise, V : 1.8V to 20V, V = 1.22V, V = 0.30V, I = 60μA, I < 1μA, DFN and TSSOP- IN OUT(MIN) DO Q SD Micropower LDO 16E Packages LTC3025 300mA, Low Voltage Micropower VLDO 45mV Dropout Voltage, Low Noise 110μV , V = 1.14V to 5.5V, Low I : 54μA, RMS IN Q 6-Lead 2mm × 2mm DFN Package LTC3026 1.5A, Low Input Voltage VLDO 100mV Dropout Voltage, Low Noise 80μV , V = 0.9V to 5.5V, Low I : 950μA, RMS IN Q 10-Lead 3mm × 3mm DFN and MS10E Packages LT3027 Dual 100mA, Low Noise, Micropower V : 1.8V to 20V, V = 1.22V, V = 0.30V, I = 40μA, I < 1μA, DFN and IN OUT(MIN) DO Q SD LDO with Independent Inputs MS10E Packages LT3028 Dual 100mA/500mA, Low Noise, V : 1.8V to 20V, V = 1.22V, V = 0.30V, I = 60μA, I < 1μA, DFN and IN OUT(MIN) DO Q SD Micropower LDO with Independent TSSOP-16E Packages Inputs ThinSOT is a trademark of Linear Technology Corporation. 3009fd 20 Linear Technology Corporation LT 0412 REV D • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2007