LM22679 5A SIMPLE SWITCHER® is a series of adjustable soft-start and current-limited step-down voltage regulators with a wide input voltage range, internal voltage mode control, stable low ESR ceramic capacitors, 100 mΩ N-channel MOSFET, output voltage options, and ±1.5% feedback.
The LM22679 series provides a monolithic step‑down (buck) regulator capable of delivering up to 5 A with high efficiency (>90%). It operates from a wide input range of 4.5 V to 42 V and offers both fixed 5 V and adjustable output versions down to 1.285 V.
Key features include an integrated N‑channel MOSFET, adjustable soft‑start, programmable current limit, thermal shutdown, and a fixed 500 kHz switching frequency. The device is supplied in a TO‑263 THIN package with an exposed pad for improved thermal performance.