LM317BT

LM217, LM317 Datasheet 1.2 V to 37 V adjustable voltage regulators Features TO-220 TO-220FP D²PAK SOT223 Product status link LM217 • • • • • Output voltage range: 1.2 to 37 V Output current in excess of 1.5 A 0.1% line and load regulation Floating operation for high voltages Complete series of protections: current limiting, thermal shutdown and SOA control Description The LM217, LM317 are monolithic integrated circuits in TO-220, TO-220FP, D²PAK and SOT223 packages intended for use as positive adjustable voltage regulators. They are designed to supply more than 1.5 A of load current with an output voltage adjustable over a 1.2 to 37 V range. The nominal output voltage is selected by means of a resistive divider, making the device exceptionally easy to use and eliminating the stocking of many fixed regulators. LM317 DS0433 - Rev 22 - December 2021 For further information contact your local STMicroelectronics sales office. www.st.com LM217, LM317 Pin configuration 1 Pin configuration Figure 1. Pin connections (top view) TO-220 TO-220FP OUTPUT ADJUST OUTPUT INPUT D²PAK DS0433 - Rev 22 SOT223 page 2/34 LM217, LM317 Maximum ratings 2 Maximum ratings Table 1. Absolute maximum ratings Symbol VI - VO IO TOP PD TSTG Note: Parameter Value Unit 40 V Internally limited A Input-reference differential voltage Output current LM217 - 25 to 150 LM317 0 to 125 LM317B -40 to 125 Operating junction temperature for: Power dissipation °C Internally limited Storage temperature - 65 to 150 °C Absolute maximum ratings are those values beyond which damage to the device may occur. Functional operation under these condition is not implied. Table 2. Thermal data Symbol DS0433 - Rev 22 Parameter RthJA Thermal resistance junctionambient RthJC Thermal resistance junction-case D²PAK TO-220 TO-220FP SOT223 Unit 62.5 50 60 110 °C/W 3 5 5 15 °C/W page 3/34 LM217, LM317 Diagram 3 Diagram Figure 2. Schematic diagram DS0433 - Rev 22 page 4/34 LM217, LM317 Electrical characteristics 4 Electrical characteristics VI - VO = 5 V, IO = 500 mA, IMAX = 1.5 A and PMAX = 20 W, TJ = - 25 to 150 °C, unless otherwise specified. Table 3. Electrical characteristics for LM217 Symbol Parameter ΔVO Line regulation Test conditions TJ = 25°C VI - VO = 3 to 40 V TJ= 25°C VO ≤ 5 V ΔVO Load regulation Min. IO = 10 mA to IMAX TJ = 25°C VO ≥ 5 V, IO = 10 mA to IMAX IADJ Adjustment pin current ΔIADJ Adjustment pin current VREF Reference voltage ΔVO/VO Output voltage temperature stability IO(min) Minimum load current IO(max) Maximum load current eN Output noise voltage (percentage of VO) SVR Supply voltage rejection (1) VI - VO = 2.5 to 40 V IO = 10 mA to IMAX VI - VO = 2.5 to 40 V IO = 10 mA to IMAX PD ≤ PMAX 1.2 Typ. Max. Unit 0.01 0.02 0.02 0.05 5 15 20 50 0.1 0.3 0.3 1 50 100 µA 0.2 5 µA 1.25 1.3 V 1 VI - VO = 40 V 3.5 VI - VO ≤ 15 V, PD < PMAX 1.5 2.2 VI - VO = 40 V, PD < PMAX, TJ = 25°C 0.4 B = 10 Hz to 100 kHz, TJ = 25°C 0.003 TJ = 25°C, f = 120 Hz CADJ = 0 CADJ = 10 µF 65 66 80 %/V mV % % 5 mA A % dB 1. CADJ is connected between adjust pin and ground. DS0433 - Rev 22 page 5/34 LM217, LM317 Electrical characteristics VI - VO = 5 V, IO = 500 mA, IMAX = 1.5 A and PMAX = 20 W, TJ = 0 to 125 °C, unless otherwise specified. Table 4. Electrical characteristics for LM317 Symbol Parameter ΔVO Line regulation Test conditions TJ = 25°C VI - VO = 3 to 40 V TJ= 25°C VO ≤ 5 V ΔVO Load regulation Min. IO = 10 mA to IMAX TJ = 25°C VO ≥ 5 V, IO = 10 mA to IMAX IADJ Adjustment pin current ΔIADJ Adjustment pin current VI - VO = 2.5 to 40 V IO = 10 mA to IMAX Typ. Max. Unit 0.01 0.04 0.02 0.07 5 25 20 70 0.1 0.5 0.3 1.5 50 100 µA 0.2 5 µA 1.25 1.3 V %/V mV % VI - VO = 2.5 to 40 V VREF Reference voltage (between pin 3 and pin 1) IO = 10 mA to IMAX 1.2 PD ≤ PMAX ΔVO/VO Output voltage temperature stability IO(min) Minimum load current IO(max) Maximum load current eN Output noise voltage (percentage of VO) SVR Supply voltage rejection (1) 1 VI - VO = 40 V 3.5 VI - VO ≤ 15 V, PD < PMAX 1.5 VI - VO = 40 V, PD < PMAX, TJ = 25°C 0.4 B = 10 Hz to 100 kHz, TJ = 25°C TJ = 25°C, f = 120 Hz 0.003 CADJ = 0 CADJ = 10 µF 2.2 65 66 80 % 10 mA A % dB 1. CADJ is connected between adjust pin and ground. DS0433 - Rev 22 page 6/34 LM217, LM317 Electrical characteristics VI - VO = 5 V, IO = 500 mA, IMAX = 1.5 A and PMAX = 20 W, TJ = - 40 to 125 °C, unless otherwise specified. Table 5. Electrical characteristics for LM317B Symbol Parameter ΔVO Line regulation Test conditions TJ = 25°C VI - VO = 3 to 40 V TJ= 25°C VO ≤ 5 V ΔVO Load regulation Min. IO = 10 mA to IMAX TJ = 25°C VO ≥ 5 V, IO = 10 mA to IMAX IADJ Adjustment pin current ΔIADJ Adjustment pin current VI - VO = 2.5 to 40 V IO = 10 mA to 500 mA Typ. Max. Unit 0.01 0.04 0.02 0.07 5 25 20 70 0.1 0.5 0.3 1.5 50 100 µA 0.2 5 µA 1.25 1.3 V %/V mV % VI - VO = 2.5 to 40 V VREF Reference voltage (between pin 3 and pin 1) IO = 10 mA to 500 mA 1.2 PD ≤ PMAX ΔVO/VO Output voltage temperature stability IO(min) Minimum load current IO(max) Maximum load current eN Output noise voltage (percentage of VO) SVR Supply voltage rejection (1) 1 VI - VO = 40 V 3.5 VI - VO ≤ 15 V, PD < PMAX 1.5 VI - VO = 40 V, PD < PMAX, TJ = 25°C 0.4 B = 10 Hz to 100 kHz, TJ = 25°C TJ = 25°C, f = 120 Hz 0.003 CADJ = 0 CADJ = 10 µF 2.2 65 66 80 % 10 mA A % dB 1. CADJ is connected between adjust pin and ground. DS0433 - Rev 22 page 7/34 LM217, LM317 Typical characteristics 5 Typical characteristics Figure 3. Output current vs. input-output differential voltage Figure 4. Dropout voltage vs. junction temperature Figure 5. Reference voltage vs. junction DS0433 - Rev 22 page 8/34 LM217, LM317 Typical characteristics Figure 6. Basic adjustable regulator Output Input Adj DS0433 - Rev 22 page 9/34 LM217, LM317 Application information 6 Application information The LM217, LM317 provides an internal reference voltage of 1.25 V between the output and adjustments terminals. This is used to set a constant current flow across an external resistor divider (see Figure 6. Basic adjustable regulator), giving an output voltage VO of: VO = VREF (1 + R2/R1) + IADJ R2 The device was designed to minimize the term IADJ (100 µA max) and to maintain it very constant with line and load changes. Usually, the error term IADJ × R2 can be neglected. To obtain the previous requirement, all the regulator quiescent current is returned to the output terminal, imposing a minimum load current condition. If the load is insufficient, the output voltage will rise. Since the LM217, LM317 is a floating regulator and "sees" only the input-to- output differential voltage, supplies of very high voltage with respect to ground can be regulated as long as the maximum input-to-output differential is not exceeded. Furthermore, programmable regulators are easily obtainable and, by connecting a fixed resistor between the adjustment and output, the device can be used as a precision current regulator. In order to optimize the load regulation, the current set resistor R1 (see Figure 6. Basic adjustable regulator) should be tied as close as possible to the regulator, while the ground terminal of R2 should be near the ground of the load to provide remote ground sensing. Performance may be improved with added capacitance as follow: • • An input bypass capacitor of 0.1 µF An adjustment terminal to ground 10 µF capacitor to improve the ripple rejection of about 15 dB (CADJ). • An 1 µF tantalum (or 25 µF Aluminium electrolytic) capacitor on the output to improve transient response. In addition to external capacitors, it is good practice to add protection diodes, as shown in figure below D1 protect the device against input short circuit, while D2 protect against output short circuit for capacitance discharging. Figure 7. Voltage regulator with protection diodes Output Input Adjust Note: DS0433 - Rev 22 D1 protect the device against input short circuit, while D2 protects against output short circuit for capacitors discharging. page 10/34 LM217, LM317 Application information Figure 8. Slow turn-on 15 V regulator Input Output Adjust Figure 9. Current regulator Input Output Adjust IO = (VREF / R1) + IADJ = 1.25 V / R1 Figure 10. 5 V electronic shut-down regulator Output Input Adjust DS0433 - Rev 22 page 11/34 LM217, LM317 Application information Figure 11. Digitally selected outputs Output Input Adjust (R2 sets maximum VO) Figure 12. Battery charger (12 V) Output Input Adjust * RS sets output impedance of charger ZO = RS (1 + R2 / R1). Use of RS allows low charging rates whit fully charged battery. Figure 13. Current limited 6 V charger Output Input Adjust * R3 sets peak current (0.6 A for 10). ** C1 recommended to filter out input transients. DS0433 - Rev 22 page 12/34 LM217, LM317 Device summary 7 Device summary Table 6. Device summary Order codes TO-220 (single gauge) TO-220 (double gauge) D²PAK (tape and reel) LM217T LM217T-DG LM217D2T-TR LM317T LM317T-DG LM317D2T-TR LM317BT DS0433 - Rev 22 TO-220FP SO223 LM317P LM317S-TR LM317BS-TR page 13/34 LM217, LM317 Package information 8 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. 8.1 TO-220 (single gauge) package information Figure 14. TO-220 (single gauge) package outline 8174627_5 DS0433 - Rev 22 page 14/34 LM217, LM317 TO-220 (single gauge) package information Table 7. TO-220 (single gauge) mechanical data Dim. DS0433 - Rev 22 mm Min. Typ. Max. A 4.40 4.60 b 0.61 0.88 b1 1.14 1.70 c 0.48 0.70 D 15.25 15.75 E 10.00 10.40 e 2.40 2.70 e1 4.95 5.15 F 0.51 0.60 H1 6.20 6.60 J1 2.40 2.72 L 13.00 14.00 L1 3.50 3.93 L20 16.40 L30 28.90 ∅P 3.75 3.85 Q 2.65 2.95 page 15/34 LM217, LM317 TO-220 (dual gauge) package information 8.2 TO-220 (dual gauge) package information Figure 15. TO-220 (dual gauge) package outline 0015988_21_Type A DS0433 - Rev 22 page 16/34 LM217, LM317 TO-220 (dual gauge) package information Table 8. TO-220 (dual gauge) mechanical data Dim. mm Min. Max. A 4.40 4.60 b 0.61 0.88 b1 1.14 1.70 c 0.48 0.70 D 15.25 15.75 D1 DS0433 - Rev 22 Typ. 1.27 E 10 10.40 e 2.40 2.70 e1 4.95 5.15 F 1.23 1.32 H1 6.20 6.60 J1 2.40 2.72 L 13 14 L1 3.50 3.93 L20 16.40 L30 28.90 ∅P 3.75 3.85 Q 2.65 2.95 page 17/34 LM217, LM317 TO-220FP type A package information 8.3 TO-220FP type A package information Figure 16. TO-220FP package outline 7012510_type_A DS0433 - Rev 22 page 18/34 LM217, LM317 TO-220FP type A package information Table 9. TO-220FP package mechanical data Dim. mm Min. Max. A 4.4 4.6 B 2.5 2.7 D 2.5 2.75 E 0.45 0.7 F 0.75 1 F1 1.15 1.70 F2 1.15 1.70 G 4.95 5.2 G1 2.4 2.7 H 10 L2 DS0433 - Rev 22 Typ. 10.4 16 L3 28.6 30.6 L4 9.8 10.6 L5 2.9 3.6 L6 15.9 16.4 L7 9 9.3 Dia 3 3.2 page 19/34 LM217, LM317 D²PAK (SMD 2L STD-ST) type A package information 8.4 D²PAK (SMD 2L STD-ST) type A package information Figure 17. D²PAK (SMD 2L STD-ST) type A package outline 0079457_22_type A DS0433 - Rev 22 page 20/34 LM217, LM317 D²PAK (SMD 2L STD-ST) type A package information Table 10. D²PAK (SMD 2L STD-ST) mechanical data Dim. mm Min. Max. A 4.40 4.60 A1 0.03 0.23 b 0.70 0.93 b2 1.14 1.70 c 0.45 0.60 c2 1.23 1.36 D 8.95 9.35 D1 7.50 7.75 8.00 D2 1.10 1.30 1.50 E 10 E1 8.50 8.70 8.90 E2 6.85 7.05 7.25 e 10.40 2.54 e1 4.88 5.28 H 15 15.85 J1 2.49 2.69 L 2.29 2.79 L1 1.27 1.40 L2 1.30 1.75 R V2 DS0433 - Rev 22 Typ. 0.4 0° 8° page 21/34 LM217, LM317 D²PAK (ASE) type B package information 8.5 D²PAK (ASE) type B package information Figure 18. D²PAK (ASE subcon) type B package outline 0079457_23_type B DS0433 - Rev 22 page 22/34 LM217, LM317 D²PAK (ASE) type B package information Table 11. D²PAK (ASE) type B mechanical data Dim. mm Min. Max. A 4.36 4.56 A1 0 0.25 b 0.70 0.90 b1 0.51 0.89 b2 1.17 1.37 b3 1.36 1.46 c 0.38 0.694 c1 0.38 0.534 c2 1.19 1.34 D 8.60 9.00 D1 6.90 7.50 E 10.15 10.55 E1 8.10 8.70 e 2.54 H 15.00 15.60 L 1.90 2.50 L1 1.65 L2 1.78 L3 L4 DS0433 - Rev 22 Typ. 0.25 4.78 5.28 page 23/34 LM217, LM317 D²PAK (ASE) type B package information Figure 19. D²PAK recommended footprint (dimensions are in mm) Footprint_0079457 DS0433 - Rev 22 page 24/34 LM217, LM317 D²PAK packaging information 8.6 D²PAK packaging information Figure 20. D²PAK tape outline 10 pitches cumul ative tolerance on tape +/- 0.2 mm P0 Top cover tape T P2 D E F B1 W K0 B0 For machine ref. only including d raft and radii con centric around B0 A0 P1 D1 User direction of feed R Bending radius User direction of feed Figure 21. Reel for D²PAK T REEL DIMENSIONS 40mm min. Access ho le At sl ot location B D C N A Full radius DS0433 - Rev 22 Tape slot in core for tape start 25 mm min. width G measured at hub page 25/34 LM217, LM317 D²PAK packaging information Table 12. D²PAK tape and reel mechanical data Tape Dim. DS0433 - Rev 22 Reel mm mm Dim. Min. Max. Min. Max. A0 10.5 10.7 A B0 15.7 15.9 B 1.5 D 1.5 1.6 C 12.8 D1 1.59 1.61 D 20.2 E 1.65 1.85 G 24.4 F 11.4 11.6 N 100 K0 4.8 5.0 T P0 3.9 4.1 P1 11.9 12.1 Base qty 1000 P2 1.9 2.1 Bulk qty 1000 R 50 T 0.25 0.35 W 23.7 24.3 330 13.2 26.4 30.4 page 26/34 LM217, LM317 SOT223 package information 8.7 SOT223 package information Figure 22. SOT223 package outline Table 13. SOT223 mechanical data Dim. mm Min. Typ. A 1.8 A1 0.02 B 0.6 0.7 0.85 B1 2.9 3 3.15 c 0.24 0.26 0.35 D 6.3 6.5 6.7 0.1 e 2.3 e1 4.6 E 3.3 3.5 3.7 H 6.7 7.0 7.3 V DS0433 - Rev 22 Max. 10º page 27/34 LM217, LM317 SOT223 packing information 8.8 SOT223 packing information Table 14. SOT223 tape and reel mechanical data Tape Dim. Reel mm mm Dim. Min. Typ. Max. A0 6.75 6.85 6.95 A B0 7.30 7.40 7.50 N K0 1.80 1.90 2.00 W1 12.4 F 5.40 5.50 5.60 W2 18.4 E 1.65 1.75 1.85 W3 W 11.7 12 12.3 P2 1.90 2 2.10 Basequantity pcs 1000 P0 3.90 4 4.10 Bulk quantity pcs 1000 P1 7.90 8 8.10 T 0.25 0.30 0.35 D 1.50 1.55 1.60 D1 1.50 1.60 1.70 Min. Max. 180 60 11.9 15.4 Figure 23. Tape for SOT223 (dimensions are in mm) DS0433 - Rev 22 page 28/34 LM217, LM317 SOT223 packing information Figure 24. Reel for SOT223 (dimensions are in mm) Figure 25. SOT223 reel oriented User Direction of feed DS0433 - Rev 22 page 29/34 LM217, LM317 Revision history Table 15. Document revision history Date Revisio Changes n 01-Sep-2004 10 Mistake VREF==> VO, tables 1, 4 and 5. 19-Jan-2007 11 D²PAK mechanical data has been updated, add footprint data and the document has been reformatted. 13-Jun-2007 12 Change values ΔIADJ and VREF test condition of IO = 10 mA to IMAX ==> IO = 10 mA to 500 mA on Table 5. 23-Nov-2007 13 Added Table 1. 06-Feb-2008 14 Added: TO-220 mechanical data Figure 14 on page 14 and Table 6 on page 13. 02-Mar-2010 15 Added: notes Figure 14 on page 14, Figure 15 on page 15, Figure 16 and Figure 17 on page 16. 17-Nov-2010 16 Modified: RthJC valuefor TO-220 Table 3 on page 4. 18-Nov-2011 17 Added: order code LM317T-DG Table 1 on page 1. 13-Feb-2012 18 Added: order code LM217T-DG Table 1 on page 1. The part number LM117 has been moved to a separate datasheet. Removed TO-3 package. Updated the description in cover page 12-Mar-2014 19 Modified Table 1: Device summary, Table 3: Thermal data, Figure 1: Pin connections (top view), Section 4: Electrical characteristics, Section 5: Typical characteristics, Section 6: Application information, Section 7: Package mechanical data. Added Section 8: Packaging mechanical data. Minor text changes. 28-May-2018 20 Updated Section 8.5 D²PAK (ASE) type B package information. 31-Jul-2019 21 Updated TOP unit in Table 1. Absolute maximum ratings. 23-Dec-2021 22 Added new package SOT223 on the cover page, Section 8.7 SOT223 package information and Section 8.8 SOT223 packing information. Updated Table 6. Device summary. DS0433 - Rev 22 page 30/34 LM217, LM317 Contents Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 3 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 4 Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6 Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 7 Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 8 Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 8.1 TO-220 (single gauge) package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 8.2 TO-220 (dual gauge) package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8.3 TO-220FP type A package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 8.4 D²PAK (SMD 2L STD-ST) type A package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 8.5 D²PAK (ASE) type B package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 8.6 D²PAK packaging information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 8.7 SOT223 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 8.8 SOT223 packing information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 DS0433 - Rev 22 page 31/34 LM217, LM317 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Table 9. Table 10. Table 11. Table 12. Table 13. Table 14. Table 15. Absolute maximum ratings . . . . . . . . . . . . Thermal data. . . . . . . . . . . . . . . . . . . . . . Electrical characteristics for LM217 . . . . . . Electrical characteristics for LM317 . . . . . . Electrical characteristics for LM317B . . . . . Device summary . . . . . . . . . . . . . . . . . . . TO-220 (single gauge) mechanical data . . . TO-220 (dual gauge) mechanical data . . . . TO-220FP package mechanical data . . . . . D²PAK (SMD 2L STD-ST) mechanical data . D²PAK (ASE) type B mechanical data. . . . . D²PAK tape and reel mechanical data. . . . . SOT223 mechanical data . . . . . . . . . . . . . SOT223 tape and reel mechanical data . . . Document revision history . . . . . . . . . . . . . DS0433 - Rev 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . 3 . 5 . 6 . 7 13 15 17 19 21 23 26 27 28 30 page 32/34 LM217, LM317 List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. DS0433 - Rev 22 Pin connections (top view) . . . . . . . . . . . . . . . . . . . . Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . Output current vs. input-output differential voltage . . . . Dropout voltage vs. junction temperature . . . . . . . . . . Reference voltage vs. junction . . . . . . . . . . . . . . . . . Basic adjustable regulator . . . . . . . . . . . . . . . . . . . . Voltage regulator with protection diodes . . . . . . . . . . . Slow turn-on 15 V regulator . . . . . . . . . . . . . . . . . . . Current regulator . . . . . . . . . . . . . . . . . . . . . . . . . . 5 V electronic shut-down regulator . . . . . . . . . . . . . . Digitally selected outputs . . . . . . . . . . . . . . . . . . . . . Battery charger (12 V) . . . . . . . . . . . . . . . . . . . . . . . Current limited 6 V charger. . . . . . . . . . . . . . . . . . . . TO-220 (single gauge) package outline . . . . . . . . . . . TO-220 (dual gauge) package outline . . . . . . . . . . . . TO-220FP package outline. . . . . . . . . . . . . . . . . . . . D²PAK (SMD 2L STD-ST) type A package outline . . . . D²PAK (ASE subcon) type B package outline . . . . . . . D²PAK recommended footprint (dimensions are in mm) D²PAK tape outline . . . . . . . . . . . . . . . . . . . . . . . . . Reel for D²PAK . . . . . . . . . . . . . . . . . . . . . . . . . . . . SOT223 package outline . . . . . . . . . . . . . . . . . . . . . Tape for SOT223 (dimensions are in mm) . . . . . . . . . Reel for SOT223 (dimensions are in mm). . . . . . . . . . SOT223 reel oriented . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 . 4 . 8 . 8 . 8 . 9 10 11 11 11 12 12 12 14 16 18 20 22 24 25 25 27 28 29 29 page 33/34 LM217, LM317 IMPORTANT NOTICE – PLEASE READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2021 STMicroelectronics – All rights reserved DS0433 - Rev 22 page 34/34