MT3820 - Aerosemi

MT3820 Dual High-Efficiency PWM Step-Down DC/DC Converter

The MT3820 is a dual high-efficiency Pulse-Width-Modulated (PWM) step-down DC/DC converter. It is capable of delivering 1.2A output current over a wide input voltage range from 2.4V to 5.5V, the MT3820 is ideally suited for portable electronic devices that are powered from 1-cell Li-ion battery or from other power sources within the range such as cellular ph.

Features

z High Efficiency: Up to 96% z 1.5MHz Constant Frequency Operation z 1.2A Output Current z No Schottky Diode Required z 2.4V to 5.5V Input Voltage Range z Output Voltage as Low as 0.6V z Low Quiescent Current: 30µA z Slope Compensated Current Mode Control for Excellent Line and Load Transient Response z Thermal Fault Protection z Inrush Current Limit and Soft Start z <1µA Shutdown Current z Small 12-Lead WDFN package APPLICATIONS z Cellular and Smart Phones z Personal Information Appliances z Wireless and DSL Modems z MP3 Players z Digital Still and Video Cameras Typical Application Aerosem.