NX2305 - NEXSEM

NX2305 SINGLE SUPPLY 12V SYNCHRONOUS PWM CONTROLLER

The NX2305 controller IC is a combination synchronous n Buck and LDO controller IC designed to convert single n 12V supply to low cost dual on board supply applica- n tions. The synchronous controller is used for high cur- n rent high efficiency step down DC to DC converter appli- n cations while the LDO controller in conjunction with an n external low cost .

Features

includes: n 12V gate drive capability , Adaptive dead band control, Power good flag for the switcher controller and separate Enable pins for independent power sequencing. PRELIMINARY DATA SHEET FEATURES 12V PWM controller plus LDO controller Hiccup current limit by sensing Rdson of MOSFET 12V high side and low side driver Fixed internal 300kHz for switching controller Dual Independent Digital Soft Start Function Adaptive Deadband Control Enable pin available to program the Vbus UVLO Shut Down switching and LDO via pulling down EnSW or ENLDO pins APPLICATIONS PCIe Graphic Card on board convert.