LM2596 Simple Switcher® Power Converter 150 kHz 3A Step-Down Voltage Regulator

$4.39 ea

  • Part no.: 1922832
  • Manufacturer: Texas Instruments
  • Manufacturer no.: LM2596T-ADJ/NOPB
  • NCNR (Non-Cancelable, Non Returnable)
  • No datasheet available. Please review the tabs below for product specifications.
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LM2596 Simple Switcher® Power Converter 150 kHz 3A Step-Down Voltage Regulator

The LM 2596 series regulator is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. This is an adjustable output type.

Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.

The LM2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Provided here in a standard bent/staggered 5-lead TO-220 package.

A standard series of inductors are available from several different manufacturers optimized for use with the LM2596 series. This feature greatly simplifies the design of switch-mode power supplies.

Other features include an ensured ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 80µA standby current. Self protection features include a two state frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.


  • Adjustable version output range, 1.2V to 37V ±4% max over line and load conditions
  • TO-220 package
  • Ensured 3A output load current
  • Requires only 4 external components
  • Excellent line and load regulation specifications
  • 150 kHz fixed frequency internal oscillator
  • TTL shutdown capability
  • Low power standby mode, IQ typically 80µA
  • High efficiency
  • Uses readily available standard inductors
  • Thermal shutdown and current limit protection


  • Simple high-efficiency step-down (buck) regulator
  • On-carad switching regulators
  • Positive to negative converter

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