Datasheet

ManualsBrandsST ManualsIntegrated Circuits (ICs)Linear Voltage Regulator, Positive, 1.2 ... 37V, 2.2A, TO-220

TO-220

TO-220FP

D²PAK

Features

• 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 and

D²PAK 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.

Product status link

LM217

LM317

1.2 V to 37 V adjustable voltage regulators

LM217, LM317

Datasheet

DS0433 - Rev 21 - July 2019

For further information contact your local STMicroelectronics sales office.

www.st.com

Summary of content (31 pages)

PAGE 1
LM217, LM317 Datasheet 1.2 V to 37 V adjustable voltage regulators Features TO-220FP TO-220 D²PAK • • • • • 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 and D²PAK packages intended for use as positive adjustable voltage regulators.
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LM217, LM317 Pin configuration 1 Pin configuration Figure 1.
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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 Operating junction temperature for: LM217 - 25 to 150 LM317 0 to 125 LM317B -40 to 125 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.
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LM217, LM317 Diagram 3 Diagram Figure 2.
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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.
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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.
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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.
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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.
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LM217, LM317 Typical characteristics Figure 6.
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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.
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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.
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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.
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LM217, LM317 Device summary 7 Device summary Table 6.
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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.
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LM217, LM317 TO-220 (single gauge) package information Table 7. TO-220 (single gauge) mechanical data Dim. DS0433 - Rev 21 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.
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LM217, LM317 TO-220 (dual gauge) package information 8.2 TO-220 (dual gauge) package information Figure 15.
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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 21 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.
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LM217, LM317 TO-220FP type A package information 8.3 TO-220FP type A package information Figure 16.
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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 10.4 L2 DS0433 - Rev 21 Typ. 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.
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LM217, LM317 D²PAK (SMD 2L STD-ST) type A package information 8.4 D²PAK (SMD 2L STD-ST) type A package information Figure 17.
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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 21 Typ. 0.
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LM217, LM317 D²PAK (ASE) type B package information 8.5 D²PAK (ASE) type B package information Figure 18.
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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 21 Typ. 0.25 4.78 5.
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LM217, LM317 D²PAK (ASE) type B package information Figure 19.
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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 T P0 Top cover tape P2 D E F B1 K0 For machine ref.
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LM217, LM317 D²PAK packaging information Figure 21. Reel for D²PAK T REEL DIMENSIONS 40mm min. Access ho le At sl ot location B D C N A Full radius G measured at hub Tape slot in core for tape start 25 mm min. width Table 12. D²PAK tape and reel mechanical data Tape Dim. DS0433 - Rev 21 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.
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LM217, LM317 Revision history Table 13. 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.
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LM217, LM317 Contents Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 3 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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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. 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 . .
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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. DS0433 - Rev 21 Pin connections (top view) . . . . . . . . . . . . . . . . . . . . Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . Output current vs. input-output differential voltage . . . . Dropout voltage vs.
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