Table of Contents
Advertisement
11.3. LM317T
11.3.1. Description
The LM317T is an adjustable 3 terminal positive voltage regulator capable of supplying in excess of 1.5
amps over an output range of 1.25 to 37 volts. This voltage regulator is exceptionally easy to use and
requires only two external resistors to set the output voltage. Further, it employs internal current limiting,
thermal shutdown and safe area compensation, making it essentially blow–out proof. The LM317 serves a
wide variety of applications including local, on card regulation. This device can also be used to make a
programmable output regulator, or by connecting a fixed resistor between the adjustment and output, the
LM317 can be used as a precision current regulator.
11.3.2. Features
• Output Current in Excess of 1.5 A
• Output Adjustable between 1.2 V and 37 V
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting Constant with Temperature
• Output Transistor Safe–Area Compensation
• Floating Operation for High Voltage Applications
• Available in Surface Mount D
• Eliminates Stocking many Fixed Voltages
17" TFT TV Service Manual
2
PAK, and Standard 3–Lead Transistor Package
6
21/09/2004
Advertisement
Table of Contents
