DESCRIPTION
Voltage feedforward provides fast response, good line regulation and nearly constant power stage gain under wide voltage input range. Internal UVLO keeps the regulator off until the supply voltage exceeds 9V where internal digital soft starts get initiated to ramp up output. Other features include: n 5V gate drive, Programmable frequency from 300kHz n to 1MHz, Adaptive deadband control, Internal digital n soft start; Vcc under voltage lockout and shutdown ca- pability via comp pin. n FEATURES
Bus voltage operation from 9V to 24V 5V bias regulator available Excellent dynamic response with input voltage feed-forward and voltage mode control Programmable switching frequency up to 1MHz Internal Digital Soft Start Function Programmable hiccup current limit Shutdown by pulling COMP pin low NMOS LDO controller available Start into precharged output Pb-free and RoHS compliant APPLICATIONS
Notebook PC Graphic Card on board converters On board DC to DC such as 12V to 3.3V, 2.5V or 1.
Microsemi
