MCP1525/41 2.5V and 4.096V Voltage References Features Description • Precision Voltage Reference The Microchip Technology Inc. MCP1525/41 devices (cid:129) Output Voltages: 2.5V and 4.096V are 2.5V and 4.096V precision voltage references that use a combination of an advanced CMOS circuit (cid:129) Initial Accuracy: ±1% (max.) design and EPROM trimming to provide an initial (cid:129) Temperature Drift: ±50ppm/°C (max.) tolerance of ±1% (max.) and temperature stability of (cid:129) Output Current Drive: ±2mA ±50ppm/°C (max.). In addition to a low quiescent (cid:129) Maximum Input Current: 100µA @ +25°C (max.) current of 100µA (max.) at 25°C, these devices offer a (cid:129) Packages: TO-92 and SOT-23-3 clear advantage over the traditional Zener techniques (cid:129) Industrial Temperature Range: -40°C to +85°C in terms of stability across time and temperature. The output voltage is 2.5V for the MCP1525 and 4.096V for the MCP1541. These devices are offered in SOT-23-3 Applications and TO-92 packages, and are specified over the (cid:129) Battery-powered Systems industrial temperature range of -40°C to +85°C. (cid:129) Handheld Instruments Temperature Drift (cid:129) Instrumentation and Process Control (cid:129) Test Equipment 2.525 4.140 (cid:129) Data Acquisition Systems e 2.520 4.130 e g g (cid:129)(cid:129) CMoemdimcaul nEicqautiipomnse nEtquipment ut Volta 222...555011505 MCP1541 444...111012000 ut Volta (cid:129) Precision Power supplies utpV)2.500 4.090 utpV) O( O( (cid:129) 8-bit, 10-bit, 12-bit A/D Converters (ADCs) 5 2.495 4.080 1 (cid:129) D/A Converters (DACs) 152 2.490 MCP1525 4.070 154 P 2.485 4.060 P C C M 2.480 4.050 M Typical Application Circuit 2.475 4.040 -50 -25 0 25 50 75 100 V Ambient Temperature (°C) DD MCP1525 MCP1541 C Package Types IN V IN 0.1µF V MCP1525 MCP1525 SS (optional) MCP1541 MCP1541 V TO-92 SOT-23-3 OUT V REF C VIN 1 1LµF to 10µF 3 VSS VOUT 2 Basic Configuration 123 V SSV OUT V IN © 2005 Microchip Technology Inc. DS21653B-page 1

MCP1525/41 1.0 ELECTRICAL † Notice: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the CHARACTERISTICS device. This is a stress rating only and functional operation of the device at those or any other conditions above those Absolute Maximum Ratings † indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended VIN–VSS..........................................................................7.0V periods may affect device reliability. Input Current (V ) .......................................................20mA IN Output Current (V ) .............................................. ±20mA OUT Continuous Power Dissipation (T =125°C)............. 140mW A All Inputs and Outputs .....................V –0.6V to V +1.0V SS IN Storage Temperature.....................................-65°C to +150°C Maximum Junction Temperature (T )..........................+125°C J ESD protection on all pins (HBM).....................................≥ 4kV DC ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, T =+25°C, V =5.0V, V =GND, I =0mA and C =1µF. A IN SS OUT L Parameter Sym Min Typ Max Units Conditions Output Output Voltage, MCP1525 V 2.475 2.5 2.525 V 2.7V ≤ V ≤ 5.5V OUT IN Output Voltage, MCP1541 V 4.055 4.096 4.137 V 4.3V ≤ V ≤ 5.5V OUT IN Output Voltage Drift TCV — 27 50 ppm/°C T = -40°C to 85°C (Note1) OUT A Long-Term Output Stability V — 2 — ppm/hr Exposed 1008 hrs @ +125°C OUT (see Figure1-1), measured @ +25°C Load Regulation ΔV /ΔI — 0.5 1 mV/mA I = 0mA to -2mA OUT OUT OUT ΔV /ΔI — 0.6 1 mV/mA I = 0mA to 2mA OUT OUT OUT ΔV /ΔI — — 1.3 mV/mA I = 0mA to -2mA, OUT OUT OUT T = -40°C to 85°C A ΔV /ΔI — — 1.3 mV/mA I = 0mA to 2mA, OUT OUT OUT T = -40°C to 85°C A Output Voltage Hysteresis V — 115 — ppm Note2 HYS Maximum Load Current I — ±8 — mA T = -40°C to 85°C, V = 5.5V SC A IN Input-to-Output Dropout Voltage V — 137 — mV I = 2mA DROP OUT Line Regulation ΔV /ΔV — 107 300 µV/V V = 2.7V to 5.5V for MCP1525, OUT IN IN V = 4.3V to 5.5V for MCP1541 IN ΔV /ΔV — — 350 µV/V V = 2.7V to 5.5V for MCP1525, OUT IN IN V = 4.3V to 5.5V for MCP1541, IN T = -40°C to 85°C A Input Input Voltage, MCP1525 V 2.7 — 5.5 V T = -40°C to 85°C IN A Input Voltage, MCP1541 V 4.3 — 5.5 V T = -40°C to 85°C IN A Input Current I — 86 100 µA No load IN I — 95 120 µA No load, T = -40°C to 85°C IN A Note 1: Output temperature coefficient is measured using a “box” method, where the +25°C output voltage is trimmed as close to typical as possible. The 85°C output voltage is then again trimmed to zero out the tempco. 2: Output Voltage Hysteresis is defined as the change in output voltage measured at +25°C before and after cycling the temperature to +85°C and -40°C; refer to Section1.1.10 “Output Voltage Hysteresis”. DS21653B-page 2 © 2005 Microchip Technology Inc.

MCP1525/41 AC ELECTRICAL SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, T =+25°C, V =5.0V, V =GND, I =0mA and C =1µF. A IN SS OUT L Parameter Sym Min Typ Max Units Conditions AC Response Bandwidth BW — 100 — kHz Input and Load Capacitors (see Figure4-1) Input Capacitor C — 0.1 — µF Notes1 IN Load Capacitor C 1 — 10 µF Notes2 L Noise MCP1525 Output Noise Voltage E — 90 — µV 0.1Hz to 10Hz no P-P E — 500 — µV 10Hz to 10kHz no P-P MCP1541 Output Noise Voltage E — 145 — µV 0.1Hz to 10Hz no P-P E — 700 — µV 10Hz to 10kHz no P-P Note 1: The input capacitor is optional; Microchip recommends using a ceramic capacitor. 2: These parts are tested at both 1µF and 10µF to ensure proper operation over this range of load capacitors. A wider range of load capacitor values has been characterized successfully, but is not tested in production. TEMPERATURE SPECIFICATIONS Electrical Characteristics: Unless otherwise indicated, T =+25°C, V =5.0V and V =GND. A IN SS Parameter Sym Min Typ Max Units Conditions Temperature Ranges Specified Temperature Range T -40 — +85 °C A Operating Temperature Range T -40 — +125 °C Note1 A Storage Temperature Range T -65 — +150 °C A Thermal Package Resistances Thermal Resistance, TO-92 θ — 132 — °C/W JA Thermal Resistance, SOT-23-3 θ — 336 — °C/W JA Note 1: These voltage references operate over the Operating Temperature Range, but with reduced performance. In any case, the internal Junction Temperature (T ) must not exceed the Absolute Maximum specification of +150°C. J 1.1 Specification Descriptions and 1.1.3 OUTPUT VOLTAGE DRIFT (TCV ) OUT Test Circuits The output temperature coefficient or voltage drift is a measure of how much the output voltage (V ) will OUT 1.1.1 OUTPUT VOLTAGE vary from its initial value with changes in ambient Output voltage is the reference voltage that is available temperature. The value specified in the electrical on the output pin (V ). specifications is measured and equal to: OUT 1.1.2 INPUT VOLTAGE EQUATION 1-1: The input (operating) voltage is the range of voltage ΔV ⁄V TCV = --------O----U----T----------N----O----M-- (ppm⁄°C) that can be applied to the VIN pin and still have the OUT ΔT A device produce the designated output voltage on the Where: V pin. OUT V = 2.5V, MCP1525 NOM V = 4.096V, MCP1541 NOM © 2005 Microchip Technology Inc. DS21653B-page 3

MCP1525/41 1.1.4 DROPOUT VOLTAGE 1.1.9 LONG-TERM OUTPUT STABILITY The dropout voltage of these devices is measured by The long-term output stability is measured by exposing reducing V to the point where the output drops by 1%. the devices to an ambient temperature of 125°C IN Under these conditions the dropout voltage is equal to: (Figure2-9) while configured in the circuit shown in Figure1-1. In this test, all electrical specifications of the EQUATION 1-2: devices are measured periodically at +25°C. V = V –V DROP IN OUT V =5.5V IN The dropout voltage is affected by ambient MCP1525 temperature and load current. MCP1541 In Figure2-18, the dropout voltage is shown over a VIN RL negative and positive range of output current. For V OUT currents above zero milliamps, the dropout voltage is C V L ±2mA SS positive. In this case, the voltage reference is primarily 1µF square wave powered by V . With output currents below zero @10Hz IN milliamps, the dropout voltage is negative. As the output current becomes more negative, the input FIGURE 1-1: Dynamic Life Test current (I ) reduces. Under this condition, the output Configuration. IN current begins to provide the needed power to the voltage reference. 1.1.10 OUTPUT VOLTAGE HYSTERESIS The output voltage hysteresis is a measure of the 1.1.5 LINE REGULATION output voltage error once the powered devices are Line regulation is a measure of the change in output cycled over the entire operating temperature range. voltage (VOUT) as a function of a change in the input The amount of hysteresis can be quantified by voltage (VIN). This is expressed as ΔVOUT/ΔVIN and is measuring the change in the +25°C output voltage after measured in either µV/V or ppm. For example, a 1µV temperature excursions from +25°C to +85°C to +25°C change in VOUT caused by a 500mV change in VIN and also from +25°C to -40°C to +25°C. would net a ΔV /ΔV of 2µV/V, or 2ppm. OUT IN 1.1.6 LOAD REGULATION (ΔV /ΔI ) OUT OUT Load regulation is a measure of the change in the output voltage (V ) as a function of the change in OUT output current (I ). Load regulation is usually OUT measured in mV/mA. 1.1.7 INPUT CURRENT The input current (operating current) is the current that sinks from V to V without a load current on the out- IN SS put pin. This current is affected by temperature and the output current. 1.1.8 INPUT VOLTAGE REJECTION RATIO The Input Voltage Rejection Ratio (IVRR) is a measure of the change in output voltage versus the change in input voltage over frequency, as shown in Figure2-7. The calculation used for this plot is: EQUATION 1-3: V IVRR = 20log -------I--N---- (dB) V OUT DS21653B-page 4 © 2005 Microchip Technology Inc.

MCP1525/41 2.0 TYPICAL PERFORMANCE CURVES Note: The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. Note: Unless otherwise indicated, T =+25°C, V =5.0V, V =GND, I =0mA and C =1µF. A IN SS OUT L 2.525 4.140 140 MCP1525 5 Output Voltage (V) 222222......455555900112505050 MCP1541 444444......001111890123000000 1 Output Voltage (V) egulation (µV/V) 1168020000 VIN =M 2C.7PV1 t5o4 15.5V 152 2.490 MCP1525 4.070 154 e R 40 VIN = 4.3V to 5.5V P 2.485 4.060 P n C C Li 20 M 2.480 4.050 M 2.475 4.040 0 -50 -25 0 25 50 75 100 -50 -25 0 25 50 75 100 Ambient Temperature (°C) Ambient Temperature (°C) FIGURE 2-1: Output Voltage vs. Ambient FIGURE 2-4: Line Regulation vs. Ambient Temperature. Temperature. 1.0 7 MCP1525 and MCP1541 MCP1525 and MCP1541 mA) 00..89 )(cid:58) 6 mV/ 0.7 Source Current = ce ( 5 on ( 0.6 0 mA to 2 mA dan 4 ati 0.5 pe ul 0.4 m 3 Load Reg 000...123 S0 imnkA C tou r-r2e nmtA = Output I 12 IOUT = +2 mA I = -2 mA OUT 0.0 0 -50 -25 0 25 50 75 100 1.E1+00 1.E1+001 1.1E0+002 1.E1+k03 1.1E0+k04 11.E0+00k5 1.E1M+06 Ambient Temperature (°C) Frequency (Hz) FIGURE 2-2: Load Regulation vs. FIGURE 2-5: Output Impedance vs. Ambient Temperature. Frequency. 100 1,000 y 90 MCP1541 sit n A) 80 De MCP1541 put Current (µ 3456700000 MCP1525 Noise Voltage (μV/Hz)(cid:151) 11000 MCP1525 In 20 ut p 10 ut O 0 1 -50 -25 0 25 50 75 100 0.1 1 10 100 1k 10k 100k Ambient Temperature (°C) Frequency (Hz) FIGURE 2-3: Input Current vs. Ambient FIGURE 2-6: Output Noise Voltage Temperature. Density vs. Frequency. © 2005 Microchip Technology Inc. DS21653B-page 5

MCP1525/41 Note: Unless otherwise indicated, T =+25°C, V =5.0V, V =GND, I =0 mA and C =1µF. A IN SS OUT L 90 4.0975 atio MCP1525 MCP1541 n R 80 V) 4.0970 ectio 70 MCP1541 age ( 4.0965 ge Rej(dB) 60 ut Volt 4.0960 olta 50 utp V O 4.0955 ut 40 p n I 30 4.0950 11.E+00 11.0E+01 110.E0+02 1.1Ek+03 11.E0+k04 11.E00+k05 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 Frequency (Hz) Output Current (mA) FIGURE 2-7: Input Voltage Rejection FIGURE 2-10: MCP1541 Output Voltage Ratio vs. Frequency. vs. Output Current. 2.506 4.098 put 2.5015 MCP1525 2.505 4.097 utV) put 222...555000234 IIOOIUOUTUT T == = +- 202 mmmAAA 444...000999456 MCP1541 OVoltage ( Voltage (V) 22..55000150 P1525 OutVoltage (V) 222...455900901 444...000999123 Output 22..45909050 C M 2.498 4.090 2.4990 2.5 3.0 3.5 4.0 4.5 5.0 5.5 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 Input Voltage (V) Output Current (mA) FIGURE 2-8: Output Voltage vs. Input FIGURE 2-11: MCP1525 Output Voltage Voltage. vs. Output Current. 10 10.0 g (mV) 68 M60C0P S1a5m25ples Life Test (TA = +125°C) nt (mA) 9.5 Sink MCP1541 Output Voltage Agin ----8642024 Av+-e33rσaσge Maximum Load Curre 7889....5050 Source MMCCPP11552451 -10 7.0 0 200 400 600 800 1000 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Time (hr) Input Voltage (V) FIGURE 2-9: Output Voltage Aging vs. FIGURE 2-12: Maximum Load Current vs. Time (MCP1525 Device Life Test data). Input Voltage. DS21653B-page 6 © 2005 Microchip Technology Inc.

MCP1525/41 Note: Unless otherwise indicated, T =+25°C, V =5.0V, V =GND, I =0 mA and C =1µF. A IN SS OUT L 100 A) 4 35 90 MCP1541 m 2 30 A) 80 ent ( 0 IOUT 25 Input Current (µ 12345670000000 MCP1525 Output Curr---111----4208642 ΔVOUT --05112510500 Change inut Voltage (mV) p 0 -16 MCP1525 -15 Out 2.5 3.0 3.5 4.0 4.5 5.0 5.5 -18 -20 Input Voltage (V) Time (100 µs/div) FIGURE 2-13: Input Current vs. Input FIGURE 2-16: MCP1525 Load Transient Voltage. Response. MCP1541 Bandwidth = 0.1 Hz to 10 Hz V)6.0 16 Eno = 22 µVRMS = 145 µVP-P e (5.5 14 g5.0 V 12 e a IN ag olt4.5 10 oise VoltµV/div) Input V334...050 468 ne (mV) Output N(20 1122....0505 ΔVOUT --0242 Change iput Voltag 0.5 MCP1525 -6 Out 0.0 -8 Time (1 s/div) Time (100 µs/div) FIGURE 2-14: MCP1541 0.1Hz to 10Hz FIGURE 2-17: MCP1525 Line Transient Output Noise. Response. 6 150 MCP1525 and MCP1541 5 VIN V) 100 m 4 e ( 50 V) VOUT, MCP1541 ag e ( 3 olt 0 g V olta 2 VOUT, MCP1525 out -50 V p 1 Dro -100 0 -150 -1 -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 Time (200 µs/div) Output Current (mA) FIGURE 2-15: Turn-on Transient Time. FIGURE 2-18: Dropout Voltage vs. Output Current. © 2005 Microchip Technology Inc. DS21653B-page 7

MCP1525/41 3.0 PIN DESCRIPTIONS Descriptions of the pins are listed in Table3-1. TABLE 3-1: PIN FUNCTION TABLE. MCP1525, MCP1541 MCP1525, MCP1541 Symbol Description (TO-92-3) (SOT-23-3) 3 1 V Input Voltage (or Positive Power Supply) IN 2 2 V Output Voltage (or Reference Voltage) OUT 1 3 V Ground (or Negative Power Supply) SS 3.1 Input Voltage (V ) 3.3 Ground (V ) IN SS V functions as the positive power supply input (or Normally connected directly to ground. It can be placed IN operating input). An optional 0.1µF ceramic capacitor at another voltage as long as all of the voltages shift can be placed at this pin if the input voltage is too noisy; with it, and proper bypassing is observed. it needs to be within 5mm of this pin. The input voltage needs to be at least 0.2V higher than the output voltage for normal operation. 3.2 Output Voltage (V ) OUT V is an accurate reference voltage output. It can OUT source and sink small currents, and has a low output impedance. A load capacitor between 1µF and 10µF needs to be located within 5mm of this pin. DS21653B-page 8 © 2005 Microchip Technology Inc.

MCP1525/41 4.0 APPLICATIONS INFORMATION 4.1.4 PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS 4.1 Application Tips Mechanical stress due to Printed Circuit Board (PCB) mounting can cause the output voltage to shift from its 4.1.1 BASIC CIRCUIT CONFIGURATION initial value. Devices in the SOT-23-3 package are The MCP1525 and MCP1541 voltage reference generally more prone to assembly stress than devices devices should be applied as shown in Figure4-1 in all in the TO-92 package. To reduce stress-related output applications. voltage shifts, mount the reference on low-stress areas of the PCB (i.e., away from PCB edges, screw holes and large components). V DD MCP1525 4.1.5 OUTPUT FILTERING MCP1541 CIN If the noise at the output of these voltage references is V too high for the particular application, it can be easily IN 0.1µF V filtered with an external RC filter and op amp buffer. SS (optional) The op amp’s input and output voltage ranges need to V OUT include the reference output voltage. V REF C L V 1µF to 10µF DD MCP1525 FIGURE 4-1: Basic Circuit Configuration. MCP1541 VDD R FIL As shown in Figure4-1, the input voltage is connected VIN 10kW to the device at the VIN input, with an optional 0.1µF VOUT ceramic capacitor. This capacitor would be required if C C VREF V L FIL the input voltage has excess noise. A 0.1µF capacitor SS 10µF 1µF would reject input voltage noise at approximately 1to2MHz. Noise below this frequency will be amply MCP6021 rejected by the input voltage rejection of the voltage ref- erence. Noise at frequencies above 2MHz will be FIGURE 4-2: Output Noise-Reducing beyond the bandwidth of the voltage reference and, Filter. consequently, not transmitted from the input pin The RC filter values are selected for a desired cutoff through the device to the output. frequency: The load capacitance (C ) is required in order to L stabilize the voltage reference; see Section4.1.3 EQUATION 4-1: “Load Capacitor”. 1 f = ------------------------------ C 2πR C 4.1.2 INPUT (BYPASS) CAPACITOR FIL FIL The MCP1525 and MCP1541 voltage references do The values that are shown in Figure4-2 (10kΩ and not require an input capacitor across VIN to VSS. 1µF) will create a first-order, low-pass filter at the However, for added stability and input voltage transient output of the amplifier. The cutoff frequency of this filter noise reduction, a 0.1µF ceramic capacitor is is 15.9Hz, and the attenuation slope is 20dB/decade. recommended, as shown in Figure4-1. This capacitor The MCP6021 amplifier isolates the loading of this low- should be close to the device (within 5mm of the pin). pass filter from the remainder of the application circuit. This amplifier also provides additional drive, with a 4.1.3 LOAD CAPACITOR faster response time than the voltage reference. The output capacitor from V to V acts as a OUT SS frequency compensation for the references and cannot be omitted. Use load capacitors between 1µF and 10µF to compensate these devices. A 10µF output capacitor has slightly better noise, and provides additional charge for fast load transients, when compared to a 1µF output capacitor. This capacitor should be close to the device (within 5mm of the pin). © 2005 Microchip Technology Inc. DS21653B-page 9

MCP1525/41 4.2 Typical Application Circuits 4.2.2 A/D CONVERTER REFERENCE The MCP1525 and MCP1541 were carefully designed 4.2.1 NEGATIVE VOLTAGE REFERENCE to provide a voltage reference for Microchip’s 10-bit A negative precision voltage reference can be and 12-bit families of ADCs. The circuit shown in generated by using the MCP1525 or MCP1541 in the Figure4-4 shows a MCP1541 configured to provide the configuration shown in Figure4-3. reference to the MCP3201, a 12-bit ADC. VDD=5.0V CIN VDD=5.0V 0.1µF MCP1525 R R 1 2 MCP1541 10kΩ 10kΩ C L 10µF VIN 0.1% 0.1% 41 VIN 10µF V 5 OUT 1 V C P OUT V L C SS 10µF M VSS V REF MCP606 VREF 0.1µF IN+ V V =- 5.0V IN MCP3201 to PICmicro® SS 3 Microcontroller IN– V =-2.5V, MCP1525 REF V =-4.096V, MCP1541 REF FIGURE 4-3: Negative Voltage FIGURE 4-4: ADC Reference Circuit. Reference. In this circuit, the voltage inversion is implemented using the MCP606 and two equal resistors. The voltage at the output of the MCP1525 or MCP1541 voltage reference drives R , which is connected to the inverting 1 input of the MCP606 amplifier. Since the non-inverting input of the amplifier is biased to ground, the inverting input will also be close to ground potential. The second 10kΩ resistor is placed around the feedback loop of the amplifier. Since the inverting input of the amplifier is high-impedance, the current generated through R will 1 also flow through R . As a consequence, the output 2 voltage of the amplifier is equal to -2.5V for the MCP1525 and -4.1V for the MCP1541. DS21653B-page 10 © 2005 Microchip Technology Inc.

MCP1525/41 5.0 PACKAGING INFORMATION 5.1 Package Marking Information 3-Lead TO-92 (Leaded) Example: XXXXXX MCP XXXXXX 1525I XXYYWW TO0544 NNN 256 3-Lead TO-92 (Lead Free) Example: XXXXXX MCP XXXXXX 1525I XXXXXX TO^e^3 YWWNNN 544256 3-Lead SOT-23-3 Example: I-Temp XXNN Device VA25 Code MCP1525 VANN MCP1541 VBNN Note: Applies to 3-Lead SOT-23. Legend: XX...X Customer-specific information Y Year code (last digit of calendar year) YY Year code (last 2 digits of calendar year) WW Week code (week of January 1 is week ‘01’) NNN Alphanumeric traceability code e3 Pb-free JEDEC designator for Matte Tin (Sn) * This package is Pb-free. The Pb-free JEDEC designator ( e 3 ) can be found on the outer packaging for this package. Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. © 2005 Microchip Technology Inc. DS21653B-page 11

MCP1525/41 3-Lead Plastic Transistor Outline (TO) (TO-92) E1 D 1 n L 1 2 3 α B p c A R β Units INCHES* MILLIMETERS Dimension Limits MIN NOM MAX MIN NOM MAX Number of Pins n 3 3 Pitch p .050 1.27 Bottom to Package Flat A .130 .143 .155 3.30 3.62 3.94 Overall Width E1 .175 .186 .195 4.45 4.71 4.95 Overall Length D .170 .183 .195 4.32 4.64 4.95 Molded Package Radius R .085 .090 .095 2.16 2.29 2.41 Tip to Seating Plane L .500 .555 .610 12.70 14.10 15.49 Lead Thickness c .014 .017 .020 0.36 0.43 0.51 Lead Width B .016 .019 .022 0.41 0.48 0.56 Mold Draft Angle Top α 4 5 6 4 5 6 Mold Draft Angle Bottom β 2 3 4 2 3 4 *Controlling Parameter Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: TO-92 Drawing No. C04-101 DS21653B-page 12 © 2005 Microchip Technology Inc.

MCP1525/41 3-Lead Plastic Small Outline Transistor (TT) (SOT23) E E1 2 B p1 D n p 1 α c A A2 φ A1 β L Units INCHES* MILLIMETERS Dimension Limits MIN NOM MAX MIN NOM MAX Number of Pins n 3 3 Pitch p .038 0.96 Outside lead pitch (basic) p1 .076 1.92 Overall Height A .035 .040 .044 0.89 1.01 1.12 Molded Package Thickness A2 .035 .037 .040 0.88 0.95 1.02 Standoff § A1 .000 .002 .004 0.01 0.06 0.10 Overall Width E .083 .093 .104 2.10 2.37 2.64 Molded Package Width E1 .047 .051 .055 1.20 1.30 1.40 Overall Length D .110 .115 .120 2.80 2.92 3.04 Foot Length L .014 .018 .022 0.35 0.45 0.55 Foot Angle φ 0 5 10 0 5 10 Lead Thickness c .004 .006 .007 0.09 0.14 0.18 Lead Width B .015 .017 .020 0.37 0.44 0.51 Mold Draft Angle Top α 0 5 10 0 5 10 Mold Draft Angle Bottom β 0 5 10 0 5 10 * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: TO-236 Drawing No. C04-104 © 2005 Microchip Technology Inc. DS21653B-page 13

MCP1525/41 NOTES: DS21653B-page 14 © 2005 Microchip Technology Inc.

MCP1525/41 APPENDIX A: REVISION HISTORY Revision B (February 2005) The following is the list of modifications: 1. Added bandwidth and capacitor specifications (Section1.0 “Electrical Characteristics”). 2. Moved Section1.1 “Specification Descrip- tions and Test Circuits” to the specifications section (Section1.0 “Electrical Characteris- tics”). 3. Corrected plots in Section2.0 “Typical Perfor- mance Curves”. 4. Added Section3.0 “Pin Descriptions”. 5. Corrected package markings in Section5.0 “Packaging Information”. 6. Added Appendix A: “Revision History”. Revision A (July 2001) (cid:129) Original Release of this Document. © 2005 Microchip Technology Inc. DS21653B-page 15

MCP1525/41 NOTES: DS21653B-page 16 © 2005 Microchip Technology Inc.

MCP1525/41 PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. X /XX Examples: a) MCP1525T-I/TT: Tape and Reel, Device Temperature Package Industrial Temperature, Range SOT23 package. b) MCP1525-I/TO: Industrial Temperature, TO-92 package. Device MCP1525: = 2.5V Voltage Reference MCP1541: = 4.096 Voltage Reference c) MCP1541T-I/TT: Tape and Reel, Industrial Temperature, SOT23 package. Temperature Range I = -40°C to +85°C d) MCP1541-I/TO: Industrial Temperature, TO-92 package. Package TO = TO-92, Plastic Transistor Outline, 3-Lead TT = SOT23, Plastic Small Outline Transistor, 3-Lead © 2005 Microchip Technology Inc. DS21653B-page 17

MCP1525/41 NOTES: DS21653B-page 18 © 2005 Microchip Technology Inc.

Note the following details of the code protection feature on Microchip devices: (cid:129) Microchip products meet the specification contained in their particular Microchip Data Sheet. (cid:129) Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. (cid:129) There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. (cid:129) Microchip is willing to work with the customer who is concerned about the integrity of their code. (cid:129) Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device Trademarks applications and the like is provided only for your convenience The Microchip name and logo, the Microchip logo, Accuron, and may be superseded by updates. It is your responsibility to dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART, ensure that your application meets with your specifications. PROMATE, PowerSmart, rfPIC, and SmartShunt are MICROCHIP MAKES NO REPRESENTATIONS OR WAR- registered trademarks of Microchip Technology Incorporated RANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, in the U.S.A. and other countries. WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT AmpLab, FilterLab, Migratable Memory, MXDEV, MXLAB, LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, PICMASTER, SEEVAL, SmartSensor and The Embedded MERCHANTABILITY OR FITNESS FOR PURPOSE. Control Solutions Company are registered trademarks of Microchip disclaims all liability arising from this information and Microchip Technology Incorporated in the U.S.A. its use. Use of Microchip’s products as critical components in Analog-for-the-Digital Age, Application Maestro, dsPICDEM, life support systems is not authorized except with express dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR, written approval by Microchip. No licenses are conveyed, FanSense, FlexROM, fuzzyLAB, In-Circuit Serial implicitly or otherwise, under any Microchip intellectual property Programming, ICSP, ICEPIC, MPASM, MPLIB, MPLINK, rights. MPSIM, PICkit, PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2005, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received ISO/TS-16949:2002 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona and Mountain View, California in October 2003. The Company’s quality system processes and procedures are for its PICmicro® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. © 2005 Microchip Technology Inc. DS21653B-page 19

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