LM3171 Datasheet PDF – Positive Voltage Regulator

Part Number: LM3171, Correct Part Number: LM317T

Function: 3-Terminal Positive Adjustable Regulator

Package: TO-220 Type

Manufacturer: ST,  Fairchild Semiconductor


LM3171 Voltage Regulator


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.


LM317T datasheet



Features for LM3171

1. Output-Current In Excess of 2.2 A
2. Output-Adjustable Between 1.2 V and 37 V
3.  Internal Thermal Overload Protection
4. Internal Short-Circuit Current Limiting
5. Output-Transistor Safe Operating Area Compensation


Ordering Information :

LM317T Block Diagram

LM3171 Datasheet

LM317T pdf

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


Reference Site:

1. https://www.st.com/en/power-management/lm317.html