NX2120 - NEXSEM

NX2120 SYNCHRONOUS PWM CONTROLLER

The 2120 family of products is synchronous Buck controller IC designed for step down DC to DC converter applications. They are optimized to convert bus voltages from 2V to 25V to as low as 0.8V output voltage. These products operate at fixed internal frequency of 300kHz, except that NX2120 operates at 300kHz and n n n n n n 2120A at 600kHz frequency. Thes.

Features

are; 5V gate drive, Power good indica- tor, Adaptive deadband control, Internal digital soft start; n Vcc undervoltage lock out and shutdown capability via n the comp pin. n n PRELIMINARY DATA SHEET Pb Free Product FEATURES Bus voltage operation from 2V to 25V Power Good indicator available Fixed 300kHz, 600kHz Internal Digital Soft Start Function Less than 50 nS adaptive deadband Current limit triggers latch out by sensing Rdson of Synchronous MOSFET No negative spike at Vout during startup and shutdown Pb-free and RoHS compliant APPLICATIONS Graphic Card on board converters Memory Vddq.