NX4125 - NEXSEM

NX4125 2A SYNCHRONOUS BUCK SWITCHER

The NX4125 is an integrated 2A monolithic step-down n switching regulator with feedforward voltage mode con- n trol. It operates from an input voltage 2.5V to 5.5V which n is ideal for the application with single cell Li-Ion battery n as well as other 3.3V, 5V input bus supply applications. Switching frequency is fixed around 800kHz, small sur- n face moun.

Features

includes: Over current protection, Over n voltage protection, Over temperature protection, <1uA n shut-down current and power good indicator available. n NX4125 is available in 10-pin MLPD package and 8-pin SOICP package. n n n n n FEATURES Feedforward voltage mode control 800kHz switching frequency <1uA shut-down current Peak current limit with hiccup feature and over temperature protection Internal Digital Soft Start Over voltage protection Available in MLPD-10L and SOICP-8L package Power good indicator available Pb-free and RoHS compliant APPLICATIONS Li-Ion battery operated portabl.