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
3A Step Down Voltage Regulator IC
Available as 3.3V regulator, 5V Regulator, 12V Regulator and Variable regulator