NX2150 - NEXSEM

NX2150 SINGLE POWER SUPPLY SYNCHRONOUS PWM CONTROLLER

The NX2150 controller IC is a single power supply syn- n chronous Buck controller IC designed for step down DC n to DC converter applications. NX2150 is optimized to n convert bus voltages from 5V to 24V to outputs as low n as 0.8V voltage. An internal regulator converts bus n voltage to 5V, which provides voltage supply to internal n logic and driver.

Features

of the device are: Over voltage protec- tion, thermal shutdown, 5V gate drive, Adaptive deadband n control, Internal digital soft start, Vcc undervoltage lock out and shutdown capability via the comp pin. n n n n n PRELIMINARY DATA SHEET Pb Free Product FEATURES Single voltage supply from 5V to 24V Programmable frequency Internal Digital Soft Start Function Prebias Startup Less than 50 nS adaptive deadband Current limit triggers hiccup by sensing Rdson of Synchronous MOSFET No negative spike at Vout during startup and shutdown Over Voltage triggers latch out Power Good indicator availabl.