LM317 SLVS044M LM317KTER LM317DCY LM317DCYR LM317KC LM317KCS 1N4002 2N2905

3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 D D D D D Output Voltage Range

LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 D D D D D Output Voltage Range Adjustable From 1.25 V to 37 V Output Current Greater Than 1.5 A Internal Short-Circuit Current Limiting Thermal Overload Protection Output Safe-Area Compensation OUTPUT KC (TO-220) PACKAGE (TOP VIEW) KTE PACKAGE (TOP VIEW) OUTPUT ADJUST DCY (SOT-223) PACKAGE (TOP VIEW) KCS (TO-220) PACKAGE (TOP VIEW) OUTPUT INPUT OUTPUT INPUT OUTPUT ADJ/GND INPUT OUTPUT INPUT OUTPUT GND OUTPUT ADJUST description/ordering information The LM317 LM317 is an adjustable three-terminal positive-voltage regulator capable of supplying more than 1.5 A over an output-voltage range of 1.25 V to 37 V. It is exceptionally easy to use and requires only two external resistors to set the output voltage. Furthermore, both line and load regulation are better than standard fixed regulators. ORDERING INFORMATION ORDERABLE PART NUMBER PACKAGE TJ POWER-FLEX (KTE) LM317KTER LM317KTER Tube of 80 LM317DCY LM317DCY Reel of 2500 LM317DCYR LM317DCYR TO-220 (KC) Tube of 50 LM317KC LM317KC TO-220, short shoulder (KCS) 0°C to 125°C Reel of 2000 Tube of 20 TOP-SIDE MARKING LM317KCS LM317KCS SOT (DCY) LM317 LM317 L3 LM317 LM317 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright 2003, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 1 LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 description/ordering information (continued) In addition to having higher performance than fixed regulators, this device includes on-chip current limiting, thermal overload protection, and safe-operating-area protection. All overload protection remains fully functional, even if the ADJUST terminal is disconnected. The LM317 LM317 is versatile in its applications, including uses in programmable output regulation and local on-card regulation. Or, by connecting a fixed resistor between the ADJUST and OUTPUT terminals, the LM317 LM317 can function as a precision current regulator. An optional output capacitor can be added to improve transient response. The ADJUST terminal can be bypassed to achieve very high ripple-rejection ratios, which are difficult to achieve with standard three-terminal regulators. schematic diagram INPUT OUTPUT ADJUST absolute maximum ratings over virtual junction temperature range (unless otherwise noted) Input-to-output differential voltage, VI VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V Package thermal impedance, JA (see Notes 1 and 2) DCY package . . . . . . . . . . . . . . . . . . . . . . . . . 53°C/W (see Notes 1 and 3) KC/KCS package . . . . . . . . . . . . . . . . . . . . . . 25°C/W (see Notes 1 and 3) KTE package . . . . . . . . . . . . . . . . . . . . . . . . . 23°C/W Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. Maximum power dissipation is a function of TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) TA)/JA. Operating at the absolute maximum TJ of 150°C can affect reliability. 2. The package thermal impedance is calculated in accordance with JESD 51-7. 3. The package thermal impedance is calculated in accordance with JESD 51-5. 2 POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 recommended operating conditions MIN 37 1.5 A 0 125 °C Input-to-output voltage differential TJ MAX 3 VI VO IO Operating virtual junction temperature Output current UNIT V electrical characteristics over recommended ranges of operating virtual junction temperature (unless otherwise noted) TEST CONDITIONS PARAMETER Line Li regulation l ti MIN Thermal regulation IO = 10 mA to 1500 mA VO 5 V VO 5 V 0.04 0.02 VO 5 V VO 5 V TJ = 0°C to 125°C Load regulation CADJ = 10 µF§, µ TJ = 25°C MAX 0.01 TJ = 25°C TJ = 0°C to 125°C VI VO = 3 V to 40 V TYP 0.07 UNIT %/V 25 mV 0.1 0.5 20 70 %VO mV 0.3 ADJUST terminal current 0.07 100 0.2 TJ = 25°C 1.5 0.03 50 20-ms pulse, 5 µA 1.25 1.3 V Change in ADJUST terminal current VI VO = 2.5 V to 40 V, PD 20 W, IO = 10 mA to 1500 mA Reference voltage VI VO = 3 V to 40 V, PD 20 W, IO = 10 mA to 1500 mA Output-voltage temperature stability TJ = 0°C to 125°C 0.7 Minimum load current to maintain regulation VI VO = 40 V 3.5 Maximum output current VI VO 15 V, PD < PMAX (see Note 1) VI VO 40 V, PD < PMAX (see Note 1), TJ = 25°C RMS output noise voltage (% of VO) f = 10 HZ to 10 kHZ, TJ = 25°C Ripple rejection VO = 10 V, V f = 120 HZ 1.2 1.5 2.2 0.15 0.4 0.003 CADJ = 0 µF§ CADJ = 10 µF§ 57 62 64 %VO %VO/W µA %VO 10 mA A %VO dB Long-term stability TJ = 25°C 0.3 1 %/1k Hrs Unless otherwise noted, the following test conditions apply: |VI VO| = 5 V and IOMAX = 1.5 A, TJ = 0°C to 125°C. Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Line regulation is expressed here as the percentage change in output voltage per 1-V change at the input. § CADJ is connected between the ADJUST terminal and GND. NOTE 1: Maximum power dissipation is a function of TJ(max), JA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) TA)/JA. Operating at the absolute maximum TJ of 150°C can affect reliability. POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 3 LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 APPLICATION INFORMATION D1 (Note E) 1N4002 1N4002 Input VI LM317 LM317 Output R1 240 Adjust Ci (Note A) 0.1 µF VO (Note C) Vref = 1.25 V IAdj D2 (Note E) 1N4002 1N4002 CO (Note B) 1.0 µF CADJ (Note D) R2 NOTES: A. Ci is not required, but is recommended, particularly if the regulator is not in close proximity to the power-supply filter capacitors. A 0.1-µF disc or 1-µF tantalum provides sufficient bypassing for most applications, especially when adjustment and output capacitors are used. B. CO improves transient response, but is not needed for stability. ) ) C. VO is calculated as shown: VO +V ref 1 R2 R1 (I Adj R 2) Because IAdj typically is 50 µA, it is negligible in most applications. D. CADJ is used to improve ripple rejection; it prevents amplification of the ripple as the output voltage is adjusted higher. If CADJ is used, it is best to include protection diodes. E. If the input is shorted to ground during a fault condition, protection diodes provide measures to prevent the possiblility of external capacitors discharging through low-impedance paths in the IC. By providing low-impedance discharge paths for CO and CADJ, respectively, D1 and D2 prevent the capacitors from discharging into the output of the regulator. Figure 1. Adjustable Voltage Regulator 4 POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 APPLICATION INFORMATION LM317 LM317 +35 V VO OUTPUT INPUT R1 120 ADJUST 10 V C1 0.1 µF ) VO is calculated as: +V ) ) R2 3 k ) R3 I Adj(R2 R3) 10 V R1 Since IAdj typically is 50 µA, it is negligible in most applications. VO ref 1 R2 R3 680 Figure 2. 0-V to 30-V Regulator Circuit LM317 LM317 VI INPUT VO OUTPUT ADJUST R1 240 D1 1N4002 1N4002 (see Note A) C1 0.1 µF C3 1 µF R2 5 k C2 10 µF NOTE A: D1 discharges C2 if the output is shorted to ground. Figure 3. Adjustable Regulator Circuit With Improved Ripple Rejection LM317 LM317 VI INPUT I limit OUTPUT ADJUST R1 + 1.2 R1 Figure 4. Precision Current-Limiter Circuit POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 5 LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 APPLICATION INFORMATION R2 720 R1 240 ADJUST VI OUTPUT INPUT LM317 LM317 LM317 LM317 OUTPUT INPUT VO R3 120 ADJUST C1 0.1 µF C2 1 µF Output Adjust R4 1 k Figure 5. Tracking Preregulator Circuit LM317 LM317 INPUT VI OUTPUT ADJUST VO R1 1.2 k R2 20 k Figure 6. 1.25-V to 20-V Regulator Circuit With Minimum Program Current LM317 LM317 VI INPUT OUTPUT ADJUST LM317 LM317 VO VI INPUT R1 120 OUTPUT LM317 LM317 VO VI ADJUST INPUT OUTPUT ADJUST R2 1 k Minimum load current from each output is 10 mA. All output voltages are within 200 mV of each other. Figure 7. Adjusting Multiple On-Card Regulators With a Single Control 6 POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 VO LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 APPLICATION INFORMATION RS 0.2 (see Note A) LM317 LM317 INPUT VI OUTPUT R1 240 ADJUST R2 2.4 k ) NOTE A: RS controls the output impedance of the charger. Z OUT R S 1 R2 R1 The use of RS allows for low charging rates with a fully charged battery. + Figure 8. Battery-Charger Circuit LM317 LM317 VI INPUT 24 OUTPUT ADJUST Figure 9. 50-mA Constant-Current Battery-Charger Circuit LM317 LM317 VI INPUT OUTPUT VO = 15 V R1 240 ADJUST D1 1N4002 1N4002 R3 50 k R2 2.7 k 2N2905 2N2905 C1 25 µF Figure 10. Slow-Turn-On 15-V Regulator Circuit POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 7 LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 APPLICATION INFORMATION LM317 LM317 VI INPUT OUTPUT 480 ADJUST 12 VI(PP) 120 ADJUST VI INPUT 120 480 6 VO(PP) 2 W (TYP) OUTPUT LM317 LM317 Figure 11. AC Voltage-Regulator Circuit LM317 LM317 VI+ INPUT OUTPUT ADJUST R1 240 R2 1.1 k R3 (see Note A) VI NOTE A: R3 sets the peak current (0.6 A for a 1- resistor). Figure 12. Current-Limited 6-V Charger Circuit 8 POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 APPLICATION INFORMATION LM317 LM317 VI INPUT 0.2 OUTPUT ADJUST LM317 LM317 INPUT 0.2 OUTPUT ADJUST 4.5 V to 25 V LM317 LM317 INPUT 0.2 OUTPUT ADJUST 5 k 100 TL080 TL080 + 2N2905 2N2905 5 k _ 150 200 pF 1.5 k Figure 13. Adjustable 4-A Regulator Circuit POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 9 LM317 LM317 3-TERMINAL ADJUSTABLE REGULATOR SLVS044M SLVS044M SEPTEMBER 1997 REVISED FEBRUARY 2003 APPLICATION INFORMATION TIP73 TIP73 2N2905 2N2905 VI 500 5 k 22 LM317 LM317 INPUT VO OUTPUT ADJUST 120 10 µF 10 µF (see Note B) 1N4002 1N4002 See Note A NOTES: A. The minimum load current is 30 mA. B. This optional capacitor improves ripple rejection. Figure 14. High-Current Adjustable Regulator Circuit 10 POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 47 µF MECHANICAL DATA MPDS094A MPDS094A APRIL 2001 REVISED JUNE 2002 DCY (R-PDSO-G4) PLASTIC SMALL-OUTLINE 6,70 (0.264) 6,30 (0.248) 3,10 (0.122) 2,90 (0.114) 4 0,10 (0.004) M 3,70 (0.146) 3,30 (0.130) 7,30 (0.287) 6,70 (0.264) Gauge Plane 1 2 0,84 (0.033) 0,66 (0.026) 2,30 (0.091) 4,60 (0.181) 1,80 (0.071) MAX 3 0°10° 0,10 (0.004) M 0,25 (0.010) 0,75 (0.030) MIN 1,70 (0.067) 1,50 (0.059) 0,35 (0.014) 0,23 (0.009) Seating Plane 0,08 (0.003) 0,10 (0.0040) 0,02 (0.0008) 4202506/B 4202506/B 06/2002 NOTES: A. B. C. D. All linear dimensions are in millimeters (inches). This drawing is subject to change without notice. Body dimensions do not include mold flash or protrusion. Falls within JEDEC TO-261 Variation AA. POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 1 MECHANICAL DATA MPFM001E MPFM001E OCTOBER 1994 REVISED JANUARY 2001 KTE (R-PSFM-G3) PowerFLEXTM PLASTIC FLANGE-MOUNT 0.375 (9,52) 0.080 (2,03) 0.070 (1,78) 0.365 (9,27) 0.360 (9,14) 0.050 (1,27) 0.040 (1,02) 0.350 (8,89) 0.220 (5,59) NOM 0.010 (0,25) NOM Thermal Tab (See Note C) 0.360 (9,14) 0.350 (8,89) 0.295 (7,49) NOM 0.320 (8,13) 0.310 (7,87) 0.420 (10,67) 0.410 (10,41) 1 3 0.025 (0,63) 0.031 (0,79) 0.100 (2,54) Seating Plane 0.004 (0,10) 0.010 (0,25) M 0.005 (0,13) 0.001 (0,03) 0.200 (5,08) 0.041 (1,04) 0.031 (0,79) 0.010 (0,25) NOM Gage Plane 3° 6° 0.010 (0,25) 4073375/F 4073375/F 12/00 NOTES: A. B. C. D. E. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. The center lead is in electrical contact with the thermal tab. Dimensions do not include mold protrusions, not to exceed 0.006 (0,15). Falls within JEDEC MO-169 MO-169 PowerFLEX is a trademark of Texas Instruments. POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 1 MPSF017A MPSF017A - OCTOBER 2002 - REVISED FEBRUARY 2003 MECHANICAL DATA MSOT007A MSOT007A JANUARY 1995 REVISED SEPTEMBER 1995 KC (R-PSFM-T3) PLASTIC FLANGE-MOUNT PACKAGE 0.120 (3,05) 0.100 (2,54) 0.420 (10,67) 0.380 (9,65) 0.156 (3,96) DIA 0.146 (3,71) 0.185 (4,70) 0.175 (4,46) (see Note H) 0.052 (1,32) 0.048 (1,22) 0.270 (6,86) 0.230 (5,84) (see Note H) 0.625 (15,88) 0.560 (14,22) 0.125 (3,18) (see Note C) (see Note F) 0.250 (6,35) MAX 0.562 (14,27) 0.500 (12,70) 1 0.035 (0,89) 0.029 (0,74) 0.010 (0,25) M 3 0.070 (1,78) 0.045 (1,14) 0.122 (3,10) 0.102 (2,59) 0.025 (0,64) 0.012 (0,30) 0.100 (2,54) 0.200 (5,08) 4040207 / B 01/95 NOTES: A. B. C. D. E. F. G. H. All linear dimensions are in inches (millimeters). This drawing is subject to change without notice. Lead dimensions are not controlled within this area. All lead dimensions apply before solder dip. The center lead is in electrical contact with the mounting tab. The chamfer is optional. Falls within JEDEC TO-220AB Tab contour optional within these dimensions POST OFFICE BOX 655303 · DALLAS, TEXAS 75265 1 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI's terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. 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