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LM2596S Series Datasheet

LM2596S

3A Step-Down Voltage Regulator

The LM2596 series of regulators are monolithic integratedcircuits that provide all the active functions for a step-down(buck) switching regulator, capable of driving a 3A load withexcellent line and load regulation. These devices are avail-able in fixed output voltages of 3.3V, 5V, 12V, and an adjust-able output version.

LM2596S Pin Configuration and Function

LM2596S Pin Configuration and Function


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 


LM2596S Series Datasheet

Part No
Picture
Manufacturer
Package
Description
Datasheet
LM2596S-5.0
LM2596S-5.0
National Semiconductor
TO263-5

Conv DC-DC Single Inv/Step Down 4.5V to 40V 6Pin(5+Tab) TO-263 Rail

LM2596SX-5.0/NOPB
LM2596SX-5.0/NOPB
TI
TO-263

Conv DC-DC 4.5V to 40V Inv/Step Down Single-Out 5V 3A 6Pin(5+Tab) TO-263 T/R

LM2596S-5.0
LM2596S-5.0
TI
TO-263

Conv DC-DC 4.5V to 40V Inv/Step Down Single-Out 5V 3A 6Pin(5+Tab) TO-263 Tube

LM2596S-ADJ/NOPB
LM2596S-ADJ/NOPB
TI
TO-263

Conv DC-DC 4.5V to 40V Inv/Step Down Single-Out 1.2V to 37V 3A 6Pin(5+Tab) TO-263 Tube

LM2596SX-12/NOPB
LM2596SX-12/NOPB
TI
TO-263

Conv DC-DC 4.5V to 40V Inv/Step Down Single-Out 12V 3A 6Pin(5+Tab) TO-263 T/R

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