IT7801 - M3TEK

IT7801 5V/1A High Efficiency Step-Down DC/DC Converter

The IT7801 is a high efficiency synchronous step-down DC-DC converter, optimized for battery powered portable applications. It can supply 1A of load current at input voltage ranging from 2.5V to 6.0V and enter the power saving mode operation at light load current to maintain high efficiency over the entire load current range. The IT7801 operates at a fixed s.

Features

High Efficiency up to 95% 2.5V to 6.0V Input Voltage Range 1A Output Current 1.5MHz Constant Frequency Operation Current Mode Operation Internal Soft-start Over-temperature/short Protection 100% Duty Cycle for Lowest Dropout 0.1µA Shutdown Current RoHS Compliant (100% Green Available) Applications PDA, PMP, Pocket PC, and Smartphone PDA and Smartphone USB Powered Modems Microprocessor and DSP Core Supply Wireless and DSL Card Portable Device Typical Applications Rev. 0.3.7 www.m3tekic.com Figure 1. Typical Application Circuit M3tekic Confidential 1 .