LM317A

Transcription

1 3 3 LM317A 3 LM V 1.5A 3 IC 2 / IC AC IC 6 3 LM317 3-Terminal Adjustable Regulator LM ds Increase the print percent on all Typical Curves modified formatting to get layout Converted to nat2000 DTD Modified art ds Modify Note 6. per Frank Smoot Text edit per Lisa B. fixed xref composed on 6/17/98 added LM317AEMP to SOT-223 Order Part Num ( 40V) 100V V OUT ADJ 1.2V LM350 (3A) LM338 (5A) LM337 (1.5A) LM333 (3A) 1 (LM317A) 0.01 /V (LM317A) 1.5A 1.2V 80dB 3 1.2V-25V Adjustable Regulator LM317 SOT-223 TO-252 * IC F Scale 1: National Semiconductor Corporation DS JP 1

2 (TO-263) Surface-Mount Package (TO-220) Plastic Package Top View Front View NS Package Number T03B Side View NS Package Number TS3B 4-Lead SOT-223 TO-252 (D-Pak) Front View NS Package Number MP04A Front View NS Package Number TD03B 2

3 3

4 (Note 1) 40V 0.3V ( ) ESD (Note 5) 3kV LM317A 40 T J 125 LM317 0 T J 125 Preconditioning 100 (Note 3) T J 25 V IN V OUT 5V I OUT 10mA 4

5 ( ) Note 1: Note 2: Note 3: SOT-223 2W TO-220 TO W I MAX TO-220 TO A SOT-223 1A (Min Max) AOQL( ) Note 4: ( ) Note 5: 100pF 1.5k Note 6: PC 3.2cm 2 JA 50 /W 6.5cm 2 JA 37 /W 10.3cm 2 JA 32 /W SOT

6 0 F Load Regulation Current Limit Adjustment Current Dropout Voltage Temperature Stability Minimum Operating Current 6

7 ( ) 0 F Ripple Rejection Ripple Rejection Ripple Rejection Output Impedance Line Transient Response Load Transient Response 7

8 LM V V REF R1 I 1 R ,000pF 1 F ( 25 F ) LM317 ( 240 ) V (0.05 I L ) 0.05 (1 R2/R1) 11.5 Figure 2 IC (240 ) R S FIGURE 1. I ADJ (100 A) LM317 I ADJ I ADJ 0.1 F 1 F LM F 80dB 10 F 120Hz IC IC 1 F 25 F 0.5MHz 0.1 F 0.01 F FIGURE 2. Regulator with Line Resistance in Output Lead IC IC 10 F 20A IC LM F 8

9 ( ) LM V 10 F Figure 3 LM317 25V FIGURE 4. (J-A) vs Copper (1 ounce) Area for the TO-263 Package 1 PCB TO-263 (J A) 32 /W Figure 5 TO-263 ( (J A) 35 /W 125 ) D1 C1 D2 C2 FIGURE 3. Regulator with Protection Diodes (H A) (H A) TO-263 SOT-223 TO-252 TO-263 ("S") SOT-223 ("MP") TO-252("DT") PCB PCB PCB Figure 4 TO-263 (J A) 1 PCB FIGURE 5. Maximum Power Dissipation vs T AMB for the TO-263 Package Figure 6 7 SOT-223 Figure 7 (J A) 1 74 /W 2 51 /W

10 ( ) I IN I L I G P D (V IN V OUT ) I L V IN I G Figure 8 FIGURE 6. (J-A) vs Copper (2 ounce) Area for the SOT-223 Package FIGURE 8. Power Dissipation Diagram T R (max) T R (max) T J (max) T A (max) T J (max) 125 T A (max) T R (max) P D ( JA ) FIGURE 7. Maximum Power Dissipation vs T AMB for the SOT-223 Package LM317 LM JA T R (max)/p D TO /W Table 1 TO-252 Figure 9 Figure 10 TO-252 Figure 11 TO-252 SOT-223 TO-252 AN-1028 TABLE 1. JA Different Heatsink Area 10

11 ( ) TABLE 1. JA Different Heatsink Area ( ) Note: * FIGURE 9. JA vs 2oz Copper Area for TO-252 FIGURE 10. Maximum Allowable Power Dissipation vs. Ambient Temperature for TO

12 ( ) FIGURE 11. Maximum Allowable Power Dissipation vs. 2oz Copper Area for TO-252 FIGURE 12. Top View of the Thermal Test Pattern in Actual Scale 12

13 ( ) FIGURE 13. Bottom View of the Thermal Test Pattern in Actual Scale 13

14 5V Logic Regulator with Electronic Shutdown* Adjustable Regulator with Improved Ripple Rejection * 1.2V Slow Turn-On 15V Regulator * C1 High Stability 10V Regulator 14

15 ( ) High Current Adjustable Regulator : * 30mA 0V to 30V Regulator Power Follower 15

16 ( ) 5A Constant Voltage/Constant Current Regulator * LED 1A Current Regulator High Gain Amplifier 1.2V-20V Regulator with Minimum Program Current * I LMN 4 ma 16

17 ( ) Low Cost 3A Switching Regulator * Arnold A A Switching Regulator with Overload Protection * Arnold A Precision Current Limiter 17

18 ( ) Tracking Preregulator Current Limited Voltage Regulator 50mA R 3 R V Adjusting Multiple On-Card Regulators with Single Control* * 100mV 10 ma 18

19 ( ) AC Voltage Regulator 12V Battery Charger R S 50 ma Constant Current Battery Charger 19

20 ( ) Adjustable 4A Regulator Current Limited 6V Charger Digitally Selected Outputs * (1 0.6A) ** 1000 F * V OUT 20

21 inches (millimeters) 3-Lead TO-220 NS Package Number T03B 3-Lead TO-263 NS Package Number TS3B 21

22 millimeters ( ) 4-Lead SOT-223 NS Package Number MP04A 3-Lead D-Pack S Package Number TD03B 22

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24 (a) (b) 2. CSP-9-111C2 (Customer Products Stewardship Specification) CSP-9-111S2 (Banned Substances and Materials of Interest Specification) CSP-9-111S TEL.(03) /