LM317 3-pin and 4-pin 1.5-A adjustable positive voltage regulator | TI.com

LM317
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
3-pin and 4-pin 1.5-A adjustable positive voltage regulator

3-pin and 4-pin 1.5-A adjustable positive voltage regulator - LM317
Datasheet
 

Recommended alternative parts

  • TLV767  -  A high-accuracy, 1-A LDO regulator with low IQ & foldback current limit
  • TLV760  -  A wide input (30 V) low current (100 mA) linear regulator
  • LM317HV  -  A wide input (60 V), 1.5-A single-channel linear regulator
  • LM337  -  An adjustable negative voltage (down to –37 V), 1.5-A linear regulator
  • LM317MQ  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

Description

The LM317 device 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 requires only two external resistors to set the output voltage. The device features a typical line regulation of 0.01% and typical load regulation of 0.1%. It includes current limiting, thermal overload protection, and safe operating area protection. Overload protection remains functional even if the ADJUST terminal is disconnected.

Features

  • 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

New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer LM317

  Min   Max Range
Vin  V 4.2 to 40.0V
Vout  V 1.3 to 37V
Iout  A ≤ 1.5A
Ambient Temp  °C -40 to 125°C

Parametrics

Compare all products in Linear regulators (LDO) Email Download to Excel
Part number Order Output options Iout (Max) (A) Vin (Max) (V) Vin (Min) (V) Vout (Max) (V) Vout (Min) (V) Package Group Features Regulated outputs (#) Operating temperature range (C) Thermal resistance θJA (°C/W) Noise (uVrms) Approx. price (US$) Rating PSRR @ 100 KHz (dB) Accuracy (%) Dropout voltage (Vdo) (Typ) (mV) Iq (Typ) (mA) Package size: mm2:W x L (PKG)
LM317 Order now Adjustable Output     1.5     40     3     37     1.25     DDPAK/TO-263 | 3
SOT-223 | 4
TO-220 | 3
TO-220 | 3    
    1     0 to 125     24     38     0.18 | 1ku     Catalog     38     5     2000     3.5     3DDPAK/TO-263: 155 mm2: 15.24 x 10.16 (DDPAK/TO-263 | 3)
4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
3TO-220: 87 mm2: 8.59 x 10.16 (TO-220 | 3)
3TO-220: 88 mm2: 8.7 x 10.16 (TO-220 | 3)    
LM317L Order now Adjustable Output     0.1     35     5     32     1.2     SOIC | 8
SOT-89 | 3
TO-92 | 3
TSSOP | 8    
    1     -40 to 125
0 to 125    
52     30     0.09 | 1ku     Catalog     38     4     2000     1.5     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)
3SOT-89: 18 mm2: 4.095 x 4.5 (SOT-89 | 3)
3TO-92: 19 mm2: 3.68 x 5.2 (TO-92 | 3)
8TSSOP: 19 mm2: 6.4 x 3 (TSSOP | 8)    
LM317M Order now Adjustable Output     0.5     40     3     37     1.2     SOT-223 | 4
TO-252 | 3    
    1     -40 to 125     60     38     0.26 | 1ku     Catalog     22     3     2000     3.5     4SOT-223: 46 mm2: 7 x 6.5 (SOT-223 | 4)
3TO-252: 67 mm2: 10.11 x 6.6 (TO-252 | 3)