LM2596S-ADJ LM2596S ADJ LM2596

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

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 required with lower frequency switching regulators. Available in a standard 5-pin TO-220 package with several different lead bend options, and a 5-pin TO-263 surface mount package.

• • New product available: LMR33630 36-V, 3-A, 400-kHz synchronous converter
  • 3.3-V, 5-V, 12-V, and adjustable output versions
  • Adjustable version output voltage range: 1.2-V to 37-V ±4% maximum over line and load conditions
  • Available in TO-220 and TO-263 packages
  • 3-A output load current
  • Input voltage range up to 40 V
  • Requires only four external components
  • Excellent line and load regulation specifications
  • 150-kHz Fixed-frequency internal oscillator
  • TTL shutdown capability
  • Low power standby mode, IQ, typically 80 µA
  • High efficiency
  • Uses readily available standard inductors
  • Thermal shutdown and current-limit protection

Package Includes:

• • 1 x LM2596 DC-DC Buck Converter Adjustable Step Down Power Supply IC