MAX17620 - Maxim Integrated

MAX17620 Synchronous Step-Down DC-DC Converter

The MAX17620 is a high-frequency, high-efficiency synchronous step-down DC-DC converter with integrated MOSFETs that operates over a 2.7V to 5.5V input voltage range. The device supports up to 600mA load current and 1.5V to 100% VIN output voltage. High-frequency operation enables the use of small, low-cost inductors and capacitors. The device features selec.

Features

selectable PWM/skip mode of operation at light loads and operates at a 4MHz fixedfrequency in PWM mode. Skip mode improves system efficiency at light loads, while PWM mode maintains a constant switching frequency over the entire load. In skip mode, the device draws only 40µA of quiescent current from the supply input. In shutdown mode, the current consumption is reduced to 0.1µA. The device also features a soft-start feature to reduce the inrush current during startup, and also incorporates an enable (EN) pin to turn on/o.