EUP3409 - Eutech Microelectronics

EUP3409 800mA Synchronous Step-Down Converter

The EUP3409 contains two independent 1.5MHz constant frequency, current mode, PWM step-down converters. Each converter integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. The EUP3409 is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. Each converter can supp.

Features

z z z z z z z z z z z z z Up to 96% Efficiency 1.5MHz Constant Switching Frequency 800mA Load Current on Each Channel 2.5V to 5.5V Input Voltage Range Output Voltage as Low as 0.6V 100% Duty Cycle in Dropout Current Mode Operation Short Circuit Protection Thermal Fault Protection <1µA Shutdown Current Soft Start Function Space Saving 10-Pin TDFN Package RoHS Compliant and 100% Lead(Pb)-Free APPLICATIONS z z z z z € Typical Application Circuit Cellular and Smart Phones Microprocessors and DSP Core Supplies PDAs and Portable Media Players Wireless and DSL Modems Digital Still and Video Camera.