LM2596SX-ADJ/NOPB

Description

The LM2596SX-ADJ/NOPB 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 fixedfrequency oscillator.

The LM2596SX-ADJ/NOPB 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.

Features

   1. 3.3-V, 5-V, 12-V, and adjustable output versions

   2. Adjustable version output voltage range: 1.2-V to 37-V ±4% maximum over line and load conditions

   3. Available in TO-220 and TO-263 packages

   4. 3-A output load current

   5. Input voltage range up to 40 V

   6. Requires only four external components

   7. Excellent line and load regulation specifications

   8. 150-kHz Fixed-frequency internal oscillator

   9. TTL shutdown capability

 10. Low power standby mode, IQ, typically 80 μA

 11. High efficiency

 12. Uses readily available standard inductors

 13. Thermal shutdown and current-limit protection

 14. Create a custom design using the 

Applications

   1. Appliances

   2. Grid infrastructure

   3. EPOS

   4. Home theater

Pin Configuration and Functions