3/4 Pin 1.5A Adjustable Positive Voltage Regulator - LM317

LM317 (ACTIVE)

3/4 Pin 1.5A Adjustable Positive Voltage Regulator

 

Recommended alternative parts

  • UA7805  -  UA780x offers only fixed voltage options and does not have the same specification as the LM317.
  • TLV1117  -  Single output LDO, 800mA internal current limit thermal overload protection

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

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Parametrics Compare all products in Single Channel LDO

 
Iout (Max) (A)
Output Options
Vin (Min) (V)
Vin (Max) (V)
Vout (Min) (V)
Vout (Max) (V)
Iq (Typ) (mA)
Vdo (Typ) (mV)
Powered Load
Accuracy (%)
Noise (uVrms)
PSRR @ 100KHz (dB)
Output Capacitor Type
Additional Features
Rating
Operating Temperature Range (C)
Pin/Package
Approx. Price (US$)
LM317
1.5   
Adjustable Output
Programmable Output   
3   
40   
1.25   
37   
3.5   
2000   
FPGA
Microcontroller
Microprocessor   
4   
1110   
38   
Non-Ceramic   
Overcurrent Protection
Thermal Shutdown   
Catalog   
0 to 125   
2PFM
3DDPAK/TO-263
3TO-220
4SOT-223   
0.18 | 1ku   
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WEBENCH® Designer LM317

  Min   Max Range
Vin  V 4.2 to 40.0V
Vout  V 1.3 to 37.0V
Iout  A ≤ 1.5A
Ambient Temp  °C -40 to 125°C


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