SNVS124E November 1999 – February 2020 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.
The new product, LMR33630, offers reduced BOM cost, higher efficiency, and an 85% reduction in solution size among many other features. See the device comparison table to compare specs. Start WEBENCH Design with LMR33630.
|PART NUMBER||PACKAGE||BODY SIZE (NOM)|
|LM2596||TO-220 (5)||14.986 mm × 10.16 mm|
|TO-263 (5)||10.10 mm × 8.89 mm|