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Archive for the ‘Switching Regulator’ Category

The LM2575 Switching Regulator Pin Functions and Datasheet

Saturday, March 6th, 2010

The following table shows the pin function descriptions of this LM2575, a monolitic IC designed for a step down switching regulator. LM2575 used to be applied in applications for such Power Supply for Battery Chargers, Simple High-Efficiency Step-Down(Buck) Regulator, Pre-Regulator for Linear Regulators and more.

3A Switching Regulator Circuit Diagram using LM317

Tuesday, March 2nd, 2010

A low cost 3A switching regulator circuit diagram is shown in the following schematic. LM317s are part of the LM117 series of adjustable positive voltage regulators.

National LM2576 Buck Regulator Datasheet and Basic Application Circuit Diagram

Tuesday, November 10th, 2009

The LM2576s are Buck Regulators which is rated for 3A of continuous load current and developed as Simple Switcher product family. These devices are available in fixed output voltages of 3.3V, 5V, 12V, 15V, and an adjustable output version. The basic Buck regulator application circuit is shown in the following picture.