LM317T Datasheet – Positive Voltage Regulator

Part Number : LM317T

Function : 3-Terminal Positive Adjustable Regulator

Package : TO-220 Type

Manufacturers : Fairchild Semiconductor

Pinouts :

LM317T datasheet

LM317T Datasheet Description :

This monolithic integrated circuit is an adjustable 3-terminal positive voltage regulator designed to supply 2.2A typical of load current with an output voltage adjustable over a 1.2 to 37V. It employs internal current limiting, thermal shutdown and safe area compensation.

• Output-Current In Excess of 2.2 A
• Output-Adjustable Between 1.2 V and 37 V
• Internal Thermal Overload Protection
• Internal Short-Circuit Current Limiting
• Output-Transistor Safe Operating Area Compensation

Ordering Information
LM317T Block Diagram

LM317T Datasheet

LM317T pdf

Other data sheets within the file :  KA317, KA317TU, LM317

LM1084 Datasheet PDF – 5A, Positive Regulator – TI

Part Number : LM1084

Function : 5A Low Dropout Positive Regulator

Package : TO-220, TO-263 Type

Manufacturers : Texas Instruments

Pinouts :

LM1084 datasheet


Description :

The LM1084 is a regulator with a maximum dropout of 1.5 V at 5 A of load current. The device has the same pinout as TI’s industry standard LM317. Two resistors are required to set the output voltage of the adjustable output voltage version of the LM1084. Fixed output voltage versions integrate the adjust resistors. The LM1084 circuit includes a zener trimmed bandgap reference, current limiting, and thermal shutdown. Refer to LM1085 for the 3A version, and the LM1086 for the 1.5A version.


1. Available in 3.3-V, 5.0-V, and Adjustable Versions
2. Current Limiting and Thermal Protection
3. Output Current 5 A
4. Industrial Temperature Range : -40°C to 125°C
5. Line Regulation 0.015% (Typical)
6. Load Regulation 0.1% (Typical)


1. Post Regulator for Switching DC-DC Converter
2. High-Efficiency Linear Regulators
3. Battery Chargers

Other data sheets within the file : LM1084IS-3.3, LM1084IS-3.3/NOPB, LM1084IS-5.0, LM1084IS-5.0/NOPB

LM1084 Datasheet PDF

LM1084 pdf

LM1084 pdf