The LM2596 is a commonly used popular step-down switching regulator IC. The adjustable version can take in input voltage from 4.5V to 40V and convert it to variable voltage sourcing upto of 3A of continues current. Because of its high current capability is commonly used in power modules to power/control heavy loads.  

 

Pin Description

Pin Number

Pin Name

Description

1

V-IN

Input voltage that is to be regulated 

2

V-OUT

Stepped down Regulated output Voltage

3

Ground

Connected to system ground

4

Feedback

Sets the output voltage using divider network using output voltage feedback

5

ON/OFF

Enable pin, should be grounded for normal operation 

 

Features