MicroController Pros Home Page
My Account  Cart Contents  Checkout  
  Store » Parts & Components » Voltage Regulators » LM317 My Account  |  Cart Contents  |  Checkout   
Quick Find
 
Enter keywords to find the product you are looking for in the Quick Find field above

or use
Advanced Search
Categories
Accessory Boards->
8051->
ADI Blackfin
Arduino->
ARM->
Atmel AVR->
Cypress PSoC
Freescale->
FTDI->
Locktronics
Microchip PIC->
MIPS
Parallax->
Renesas
Silicon Labs
ST Microelectronics->
Texas Instruments->
Tibbo->
Books->
Displays->
E-Blocks->
EEPROM/EPROM/FLASH
Embedded Ethernet->
Embedded Software->
I/O Modules->
Parts & Components->
  Batteries & Chargers
  Buzzers
  Cables/Adapters->
  Cameras
  Chips/ICs
  Connectors
  Crystals
  Diodes
  IC Sockets
  Joysticks/Keypads
  LEDs
  Memory Cards
  Motor Drivers
  Power Supplies/Adapters
  Relays
  Resistors
  RTCs
  Sensors->
  Solar Cells
  Switches
  Transistors
  Voltage Regulators
  Generic Pin Converters
Pick & Place Tools
Programmable Logic (PLD)
Prototype PCBs->
Robotics
ROM/Flash Emulators
Test & Measurement->
Tutorial Software
Universal Programmers->
Wireless->
Information
Intro to Embedded Tools
Embedded News Digest
Useful Resources
Shipping & Returns
Warranty & Liability
Privacy Notice
Conditions of Use
Contact Us
LM317 1.5A Adjustable Output Voltage Regulator, TO220 package US$0.79

LM317
LM317 1.5A Adjustable Output Voltage Regulator, TO220 package


The LM317 adjustable 3-terminal positive voltage regulator is capable of supplying in excess of 1.5A over a 1.2V to 37V output range. It is exceptionally easy to use, and requires only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed regulators. Also, the LM317 is packaged in a standard transistor package which is easily mounted and handled.

In addition to higher performance than fixed regulators, the LM317 offers full overload protection available only in ICs. Included on the chip are current limit, thermal overload protection and safe area protection. All overload protection circuitry remains fully functional even if the adjustment terminal is disconnected.

Normally, no capacitors are needed unless the device is situated more than 6 inches from the input filter capacitors, in which case an input bypass is needed. An optional output capacitor can be added to improve transient response. The adjustment terminal can be bypassed to achieve very high ripple rejection ratios which are difficult to achieve with standard 3-terminal regulators.

Besides replacing fixed regulators, the LM317 is useful in a wide variety of other applications. Since the regulator is "floating" and sees only the input-to-output differential voltage, supplies of several hundred volts can be regulated as long as the maximum input to output differential is not exceeded, i.e., you avoid short-circuiting the output.

Also, it makes an especially simple adjustable switching regulator, a programmable output regulator or, by connecting a fixed resistor between the adjustment pin and output, the LM317 can be used as a precision current regulator. Supplies with electronic shutdown can be achieved by clamping the adjustment terminal to ground which programs the output to 1.2V where most loads draw little current.

LM317 Adjustable Voltage Regulator Features

  • Guaranteed 1.5% output voltage tolerance
  • Guaranteed max. 0.07%/V line regulation
  • Guaranteed max. 1.5% load regulation

LM317 Adjustable Voltage Regulator Typical Application

Full output current not available at high input-output voltages

* Needed if device is more than 6 inches from filter capacitors.

Optional improves transient response. Output capacitors in the range of 1F to 1000F of aluminum or tantalum electrolytic are commonly used to provide improved output impedance and rejection of transients.

Download LM317 Adjustable Voltage Regulator Datasheet.


This product was added to our catalog on Friday 20 July, 2007.

Reviews

Customers who bought this product also purchased
Nitrogen Dioxide (NO2) Sensor, MiCS-2714, in MiCS-2710 FootprintNitrogen Dioxide (NO2) Sensor, MiCS-2714, in MiCS-2710 FootprintUS$42.00

Barrel Jack 6V-16V to USB 5V DC Power Regulator Board, 2ABarrel Jack 6V-16V to USB 5V DC Power Regulator Board, 2AUS$8.40

Rotary Linear Potentiometer, 10kOhm, Panasonic EVU-F2AF30B14Rotary Linear Potentiometer, 10kOhm, Panasonic EVU-F2AF30B14US$0.95

Vibration Motor, Capsule Type, 3V DC, 9500-14500 RPMVibration Motor, Capsule Type, 3V DC, 9500-14500 RPMUS$4.99

3.3V Voltage Regulator Board, In/Out Terminals, 800mA+ (3.3VReg)3.3V Voltage Regulator Board, In/Out Terminals, 800mA+ (3.3VReg)US$9.90

40-pin Single Row Double-Sided Headers, 0.1" Spacing, 5 pieces40-pin Single Row Double-Sided Headers, 0.1" Spacing, 5 piecesUS$5.00

Shopping Cart more
0 items
What's New? more
Flowcode 7 "Mechatronics Pack" Feature Pack
Flowcode 7 "Mechatronics Pack" Feature Pack
US$42.00
Specials more
USB Power Regulator Board, 3.3V & 5V Ref., 0.1" Pitch (USB Reg)
USB Power Regulator Board, 3.3V & 5V Ref., 0.1" Pitch (USB Reg)
US$6.00
US$4.00
Tell A Friend
 

Tell someone you know about this product.
Notifications more
NotificationsNotify me of updates to LM317 1.5A Adjustable Output Voltage Regulator, TO220 package
Reviews more
Write ReviewWrite a review on this product!
  Wednesday 24 May, 2017   List of all our Products

Copyright © 2003-2017 MicroController Pros LLC
Powered by osCommerce