NX2211 - NEXSEM

NX2211 HIGH FREQUENCY & HIGH DRIVE SYNCHRONOUS PWM CONTROLLER

The NX2210/2211 family of controller ICs are synchro- n nous Buck controller IC designed for step down DC to DC converter applications. They are optimized to con- n vert bus voltages from 2V to 25V to outputs as low as n 0.8V voltage. Both devices offer an Enable pin that can n be used to program the converter's start voltage using an external divider fro.

Features

of the device are:Internal digital soft start; n Vcc undervoltage lock out; Output undervoltage protec- n tion with digital filter and shutdown capability via the enable pin. n PRELIMINARY DATA SHEET FEATURES <1ohm Driver keeps High Capacitance Synchronous MOSFET off during SW node transition Bus voltage operation from 2V to 25V Power Good indicator available for NX2211 Fixed 600kHz for NX2211 and adjustable frequency up to 1MHz for NX2210 Internal Digital Soft Start Function Less than 50 nS adaptive deadband Enable pin allows BUS voltage UVLO programmability Short protection with feedbac.