This document introduces the characteristics of Micrel MIC2168 1MHz PWM Synchronous Buck Control IC. The product is available in a 10-pin MSOP package, with an input voltage range of 3V to 14.5V and an output voltage that can be precisely regulated down to 0.8V. Efficiency can reach 95%.
The MIC2168 is a high‑efficiency 1 MHz PWM synchronous buck control IC offered in a compact 10‑lead MSOP package. It operates from 3 V to 14.5 V input and can regulate the output voltage down to 0.8 V, providing up to 95 % conversion efficiency. The device features an adaptive N‑channel MOSFET drive, internal soft‑start, over‑voltage protection, and dual‑mode current limiting.
Key functional blocks include a voltage‑mode regulator, error‑amplifier, high‑ and low‑side MOSFET drivers, and a programmable current‑limit circuit. The datasheet provides detailed pin descriptions, absolute maximum ratings, electrical characteristics, and design guidelines for selecting inductors, capacitors, and MOSFETs.