NX2142A - Microsemi

NX2142A SINGLE CHANNEL PWM CONTROLLER

The NX2142/2142A controller IC is a compact synchronous Buck controller IC with 10 lead MSOP package designed for step down DC to DC converter applica- n n n tions with voltage feedforward functionality. Voltage feedforward provides fast response, good line regulation and nearly constant power stage gain under wide voltage input range. The NX2142/2142A co.

Features

in- n n n cludes: 5V gate drive capability , Converter Shutdown by pulling COMP pin to Gnd, Adaptive dead band con- n trol. Vin +8 to 20V 47uF MMBT3904 FEATURES Bus voltage operation from 7V to 24V 5V bias regulator available Excellent dynamic response with input voltage feed-forward and voltage mode control Fixed 600kHz, 1MHz switching frequency Internal Digital Soft Start Function Fixed internal hiccup current limit FB UVLO followed by hiccup feature Shutdown by pulling COMP pin low Pb-free and RoHS compliant APPLICATIONS Graphic Card on board converters Vddq Supply in mother board ap.