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K A 7 8 October 2014 R M 3 3 R — KA78RM33R L o Low Dropout Voltage Regulator w D r o p o u Features Description t V o • 0.5 A / 3.3 V Output Low-Dropout Voltage Regulator The KA78RM33R is a low-dropout voltage regulator suit- l t a • Low-Dropout Voltage (Max: 0.6 V) able for various electronic equipment. It provides con- g stant voltage power source with surface-mount type e • Over-Current Protection, Thermal Shutdown package (DPAK). The dropout voltage is below 0.6 V in R • SOA Protection, Short-Circuit Protection e full-rated current 0.5 A. This regulator has over-current g protection, thermal shut-down and the SOA (Safe oper- u l ating Area) protection. a t o DPAK r 2 1 3 1. V 2. GND 3. V IN OUT Ordering Information Part Number Operating Temperature Range Top Mark Package Packing Method KA78RM33RTF KA78RM33 DPAK Tape and Reel -40 to +125°C KA78RM33RTM KA78RM33 DPAK Tape and Reel * Refer to below unit orientation figure for TM / TF suffix packing. © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA78RM33R Rev. 1.1.2

K A Block Diagram 7 8 R Q1 M Vin 1 3 Vout 3 3 R Current Thermal SOA — Shutdown Generator Protection Protection L o w Short Circuit D Protection r o p o Bandgap R1 u Reference Error Output t Amp. Drive V o l t a g e R2 R GND 3 e g u Figure 1. Block Diagram l a t o r Typical Application (cid:20) (cid:22) KA78RM33R Input Output (cid:21) (cid:38)(cid:3)(cid:44) (cid:19)(cid:17)(cid:20)(cid:3)μF (cid:38)(cid:3)(cid:50) 33μF Figure 2. DC Parameters Notes: 1. C is required if the regulator is located an appreciable distance from power supply filter. I 2. C improves stability and transient response. Refer to the figure 12 for ESR values of capacitors. O © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA78RM33R Rev. 1.1.2 2

K A Absolute Maximum Ratings 7 8 R Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be opera- M ble above the recommended operating conditions and stressing the parts to these levels is not recommended. In addi- 3 tion, extended exposure to stresses above the recommended operating conditions may affect device reliability. The 3 R absolute maximum ratings are stress ratings only. Values are at T = 25°C unless otherwise noted. A — Symbol Parameter Value Remark Unit L o VIN Input Voltage 20 V w I Output Current 0.5 A D O r RθJA Thermal Resistance Junction-Air 110 No Heatsink °C/W op P Power Dissipation Internally limited o D u TJ Junction Temperature 150 °C t V T Operating Temperature -40 to +125 °C o OPR l t a g e R Electrical Characteristics e g u Values are at TA = 25°C, VIN = 5 V, IO = 0.25 A unless otherwise specified. la t Symbol Parameter Conditions Min. Typ. Max. Unit o r V Output Voltage I =10 mA 3.22 3.30 3.38 V OUT O R Load Regulation 5 mA < I < 0.5 A 2.0 20 mV LOAD O R Line Regulation 4.3 V < V < 16 V 2.0 20 mV LINE IN R Ripple Rejection Ratio f = 120 Hz, V =5 V ± 0.5 V 55 dB R IN RMS V Dropout Voltage I = 0.5 A 0.6 V DROP O I Quiescent Current I = 0 A 5.0 10 mA Q O I Peak Current V = 5 V 0.5 1.0 A PK IN V Output Noise Voltage 10 Hz < f < 100 kHz 50 μV N RMS ΔV /ΔT Temperature Coefficient of Output -40°C < T < 125°C, I = 100 mA -0.2 mV /°C OUT Voltage J O © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA78RM33R Rev. 1.1.2 3

K A Typical Performance Characteristics 7 8 R M 1.02 VIN= 5 V 1.50 VIN = 5 V 33R V = 3.3 V Voltage (V) 1.01 IOO =UT 10 mA mA) 1.25 VIOO =U T0 m= A3.3 V — Lo Output 1.00 urrent ( 1.00 w D malized escent C ropo Nor 0.99 Qui 0.75 u t V o 0.98 0.50 lt -40 -20 0 20 40 60 80 100 120 -40 -20 0 20 40 60 80 100 120 a TA - Ambient Temperature (oC) T - Ambient Temperature (oC) g A e R Figure 3. Normalized Output Voltage Figure 4. Quiescent vs. Temperature e g u l 1.00 3.38 a TA = 25oC 3.36 IO = 10 mA VVIN == 52 0V V tor IN 0.75 3.34 A) V) Current ( 0.50 Voltage ( 33..3302 Output Output 3.28 0.25 3.26 3.24 0.00 3.22 0 2 4 6 8 10 12 14 16 -40 -20 0 20 40 60 80 100 120 Input-Output Differential (V) T - Ambient Temperature (oC) A Figure 5. Peak Output Current Figure 6. Output Voltage vs. Temperature 800 250 I = 0.5 A V = 5 V o IN T = 25oC 700 200 A V) V) m m oltage ( 600 oltage ( 150 Dropout V 500 Dropout V 100 400 50 300 0 -40 -20 0 20 40 60 80 100 120 0 25 50 75 100 125 150 175 200 225 T - Ambient Temperature (oC) Output Current (mA) A Figure 7. Dropout Voltage vs. Temperature Figure 8. Dropout Voltage vs. Output Current © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA78RM33R Rev. 1.1.2 4

K A Typical Performance Characteristics (Continued) 7 8 R M 5 3 3 3 TA = 25 oC IIOO == 1205 0m mAA R — 4 A) L utput Voltage (V) 23 Quiescent Current (m 12 ow Dropo O u 1 Io = 5 mA t I = 50 mA V Io = 250 mA o o l 00 2 4 6 8 10 12 14 16 18 20 00 4 8 12 16 20 ta g Input Voltage (V) Input Viltage (V) e R Figure 9. Output Voltage vs. Input Voltage Figure 10. Quiescent Current vs. Input Voltage e g u l 20 a t V = 5V o IN r 15 A) m nt ( e urr 10 C nt e c s e Qui 5 0 0.0 0.2 0.4 0.6 0.8 1.0 Output Current (V) Figure 11. Quiescent Current vs. Output Current Figure 12. Output Stability vs. Output Capacitor Change © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA78RM33R Rev. 1.1.2 5

K A Physical Dimensions 7 8 R M 3 3 (cid:41) R (cid:3)(cid:25)(cid:25)(cid:17)(cid:17)(cid:27)(cid:23)(cid:19)(cid:19)(cid:3) (cid:36) (cid:3)(cid:24)(cid:17)(cid:24)(cid:24)(cid:3)(cid:48)(cid:44)(cid:49)(cid:3) — L o (cid:21) w (cid:19)(cid:17)(cid:28)(cid:19) (cid:41)(cid:3)(cid:19)(cid:17)(cid:24)(cid:19)(cid:3) (cid:3)(cid:25)(cid:17)(cid:24)(cid:19)(cid:3)(cid:48)(cid:44)(cid:49)(cid:3) D (cid:3)(cid:25)(cid:24)(cid:17)(cid:17)(cid:22)(cid:28)(cid:19)(cid:19)(cid:3) (cid:41) ro p o (cid:3)(cid:25)(cid:17)(cid:23)(cid:19)(cid:3) u t V (cid:21)(cid:17)(cid:28)(cid:19) (cid:21) o (cid:3)(cid:21)(cid:17)(cid:24)(cid:19)(cid:3) (cid:20) (cid:22) (cid:38) (cid:3)(cid:21)(cid:17)(cid:27)(cid:24)(cid:3)(cid:48)(cid:44)(cid:49)(cid:3) lta (cid:20) (cid:22) g (cid:3)(cid:19)(cid:17)(cid:28)(cid:25)(cid:3)(cid:48)(cid:36)(cid:59)(cid:3) e (cid:3)(cid:19)(cid:17)(cid:25)(cid:23)(cid:3) (cid:3)(cid:21)(cid:17)(cid:21)(cid:27)(cid:3) R (cid:3)(cid:19)(cid:19)(cid:17)(cid:17)(cid:27)(cid:25)(cid:25)(cid:25)(cid:3) (cid:3)(cid:21)(cid:21)(cid:17)(cid:17)(cid:23)(cid:19)(cid:27)(cid:27)(cid:3) (cid:3)(cid:23)(cid:17)(cid:24)(cid:25)(cid:3) (cid:3)(cid:20)(cid:17)(cid:21)(cid:24)(cid:3)(cid:48)(cid:44)(cid:49)(cid:3) eg u (cid:47)(cid:36)(cid:49)(cid:39)(cid:3)(cid:51)(cid:36)(cid:55)(cid:55)(cid:40)(cid:53)(cid:49)(cid:3)(cid:53)(cid:40)(cid:38)(cid:50)(cid:48)(cid:48)(cid:40)(cid:49)(cid:39)(cid:36)(cid:55)(cid:44)(cid:50)(cid:49) l a (cid:41) (cid:37) (cid:3)(cid:21)(cid:21)(cid:17)(cid:17)(cid:41)(cid:23)(cid:21)(cid:19)(cid:19)(cid:3) tor (cid:24)(cid:17)(cid:25)(cid:23) (cid:3)(cid:24)(cid:17)(cid:19)(cid:23)(cid:3) (cid:41)(cid:3)(cid:19)(cid:19)(cid:17)(cid:17)(cid:25)(cid:23)(cid:19)(cid:19)(cid:3) (cid:3)(cid:23)(cid:17)(cid:27)(cid:22)(cid:3)(cid:48)(cid:44)(cid:49)(cid:3) (cid:3)(cid:25)(cid:17)(cid:27)(cid:19)(cid:3) (cid:21) (cid:28)(cid:17)(cid:27)(cid:19) (cid:54)(cid:40)(cid:40)(cid:3)(cid:39)(cid:40)(cid:55)(cid:36)(cid:44)(cid:47)(cid:3)(cid:36) (cid:41) (cid:3)(cid:28)(cid:17)(cid:21)(cid:19)(cid:3) (cid:19)(cid:17)(cid:20)(cid:19) (cid:37) (cid:42)(cid:36)(cid:42)(cid:40)(cid:3)(cid:51)(cid:47)(cid:36)(cid:49)(cid:40) (cid:41) (cid:19)(cid:17)(cid:25)(cid:19) (cid:41)(cid:3)(cid:20)(cid:17)(cid:19)(cid:21)(cid:3) (cid:3)(cid:19)(cid:17)(cid:23)(cid:19)(cid:3) (cid:3)(cid:20)(cid:17)(cid:24)(cid:26)(cid:3) (cid:27)(cid:131) (cid:3)(cid:19)(cid:131)(cid:3) (cid:49)(cid:50)(cid:55)(cid:40)(cid:54)(cid:29)(cid:56)(cid:49)(cid:47)(cid:40)(cid:54)(cid:54)(cid:3)(cid:50)(cid:55)(cid:43)(cid:40)(cid:53)(cid:58)(cid:44)(cid:54)(cid:40)(cid:3)(cid:54)(cid:51)(cid:40)(cid:38)(cid:44)(cid:41)(cid:44)(cid:40)(cid:39) (cid:36)(cid:12)(cid:3)(cid:3)(cid:3)(cid:49)(cid:50)(cid:55)(cid:3)(cid:38)(cid:50)(cid:48)(cid:51)(cid:47)(cid:44)(cid:36)(cid:49)(cid:55)(cid:3)(cid:55)(cid:50)(cid:3)(cid:45)(cid:40)(cid:39)(cid:40)(cid:38)(cid:3)(cid:55)(cid:50)(cid:16)(cid:21)(cid:24)(cid:21)(cid:3)(cid:57)(cid:36)(cid:53)(cid:44)(cid:36)(cid:55)(cid:44)(cid:50)(cid:49)(cid:3)(cid:36)(cid:37) (cid:37)(cid:12)(cid:3)(cid:3)(cid:3)(cid:36)(cid:47)(cid:47)(cid:3)(cid:39)(cid:44)(cid:48)(cid:40)(cid:49)(cid:54)(cid:44)(cid:50)(cid:49)(cid:3)(cid:36)(cid:53)(cid:40)(cid:3)(cid:44)(cid:49)(cid:3)(cid:48)(cid:44)(cid:47)(cid:47)(cid:44)(cid:48)(cid:40)(cid:55)(cid:40)(cid:53) (cid:3)(cid:19)(cid:17)(cid:20)(cid:21)(cid:26)(cid:3)(cid:48)(cid:36)(cid:59)(cid:3) (cid:38)(cid:12)(cid:3)(cid:3)(cid:3)(cid:39)(cid:44)(cid:48)(cid:40)(cid:49)(cid:54)(cid:44)(cid:50)(cid:49)(cid:54)(cid:3)(cid:36)(cid:53)(cid:40)(cid:3)(cid:40)(cid:59)(cid:38)(cid:47)(cid:56)(cid:54)(cid:44)(cid:57)(cid:40)(cid:3)(cid:50)(cid:41)(cid:3)(cid:37)(cid:56)(cid:53)(cid:53)(cid:54)(cid:15)(cid:48)(cid:50)(cid:47)(cid:39)(cid:3)(cid:41)(cid:47)(cid:36)(cid:54)(cid:43)(cid:15) (cid:39)(cid:40)(cid:55)(cid:36)(cid:44)(cid:47)(cid:3)(cid:36)(cid:3) (cid:3)(cid:19)(cid:17)(cid:24)(cid:24)(cid:3)(cid:48)(cid:44)(cid:49)(cid:3) (cid:3)(cid:3)(cid:3)(cid:3)(cid:3)(cid:3)(cid:3)(cid:36)(cid:49)(cid:39)(cid:3)(cid:55)(cid:44)(cid:40)(cid:3)(cid:37)(cid:36)(cid:53)(cid:3)(cid:40)(cid:59)(cid:55)(cid:53)(cid:56)(cid:54)(cid:44)(cid:50)(cid:49)(cid:54) (cid:54)(cid:40)(cid:36)(cid:55)(cid:44)(cid:49)(cid:42)(cid:3)(cid:51)(cid:47)(cid:36)(cid:49)(cid:40) (cid:54)(cid:38)(cid:36)(cid:47)(cid:40)(cid:3)(cid:20)(cid:19)(cid:3)(cid:29)(cid:3)(cid:20) (cid:41) (cid:39)(cid:12)(cid:3)(cid:3)(cid:3)(cid:47)(cid:36)(cid:39)(cid:3)(cid:51)(cid:36)(cid:55)(cid:55)(cid:40)(cid:53)(cid:49)(cid:3)(cid:51)(cid:40)(cid:53)(cid:3)(cid:44)(cid:51)(cid:38)(cid:26)(cid:22)(cid:24)(cid:20)(cid:36)(cid:3)(cid:36)(cid:55)(cid:36)(cid:49)(cid:39)(cid:36)(cid:53)(cid:39)(cid:3) (cid:3)(cid:3)(cid:3)(cid:3)(cid:3)(cid:3)(cid:3)(cid:55)(cid:50)(cid:21)(cid:21)(cid:27)(cid:51)(cid:28)(cid:28)(cid:20)(cid:59)(cid:21)(cid:22)(cid:28)(cid:16)(cid:22)(cid:49) (cid:40)(cid:12)(cid:3)(cid:3)(cid:3)(cid:39)(cid:53)(cid:36)(cid:58)(cid:44)(cid:49)(cid:42)(cid:3)(cid:41)(cid:44)(cid:47)(cid:40)(cid:3)(cid:49)(cid:36)(cid:48)(cid:40)(cid:29)(cid:48)(cid:46)(cid:55)(cid:16)(cid:55)(cid:50)(cid:21)(cid:24)(cid:21)(cid:39)(cid:19)(cid:22)(cid:53)(cid:40)(cid:57)(cid:22)(cid:17) (cid:41)(cid:12)(cid:3)(cid:3)(cid:3)(cid:39)(cid:50)(cid:40)(cid:54)(cid:3)(cid:49)(cid:50)(cid:55)(cid:3)(cid:38)(cid:50)(cid:48)(cid:51)(cid:47)(cid:60)(cid:3)(cid:45)(cid:40)(cid:39)(cid:40)(cid:38)(cid:3)(cid:54)(cid:55)(cid:36)(cid:49)(cid:39)(cid:36)(cid:53)(cid:39)(cid:3)(cid:57)(cid:36)(cid:47)(cid:56)(cid:40)(cid:17) (cid:42)(cid:12)(cid:3)(cid:3)(cid:3)(cid:41)(cid:36)(cid:44)(cid:53)(cid:38)(cid:43)(cid:44)(cid:47)(cid:39)(cid:3)(cid:54)(cid:40)(cid:48)(cid:44)(cid:38)(cid:50)(cid:49)(cid:39)(cid:56)(cid:38)(cid:55)(cid:50)(cid:53)(cid:17) Figure 13. 3-Lead, TO-252, JEDEC TO-252 VAR. AB, SURFACE MOUNT (DPAK) © 2002 Fairchild Semiconductor Corporation www.fairchildsemi.com KA78RM33R Rev. 1.1.2 6

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