Synchronous step-down buck converter delivers up to 300mA

Maxim's MAX77596 synchronous step-down buck converter are now stocked by Mouser. The compact device with integrated switches is designed to deliver up to 300mA with input voltages from 3.5V to 24V. This is done while using only 1.1µA quiescent current at no load (fixed-output version). Voltage quality can be monitored by observing the active-low RESET signal. The device can operate near dropout by running at 98% duty cycle. This makes it ideal for battery-powered applications. The device offers a fixed 3.3V output version, as well as an adjustable version. The adjustable version allows the user to program the output voltage between 1V and 10V by using a resistor-divider. Frequency is fixed at 1.7MHz, which allows for small external components and reduced output ripple. The device offers both forced-PWM and skip modes of operation, with ultra-low quiescent current of 1.1µA in skip mode. Applications include Pol systems, portable devices powered from 2s, 3s, or 4s Li+ batteries, and B Type-C Devices