3.0A,52KHz,Step-Down Manuals

LM2576 Step-Down Switching Regulator Datasheet

The LM2576 is a monolithic step‑down (buck) switching regulator available in fixed output versions (3.3 V, 5.0 V, 12 V, 15 V) and an adjustable version (1.23 V‑37 V). It requires only four external components and operates at a fixed 52 kHz internal oscillator frequency. The device offers up to 3 A output current, high efficiency, and built‑in thermal shutdown and current‑limit protection.

The datasheet provides absolute maximum ratings, operating conditions, electrical characteristics, typical performance curves, design guidelines, and component selection tables for diodes and inductors. It also includes a typical application circuit and a test‑circuit schematic for reference designs.

Covers: Features · Description and Ordering Information · Absolute Maximum Ratings · Operating Ratings · Electrical Characteristics / System Parameters · Electrical Characteristics / Device Parameters