NCP81234

Dual-Channel/Two-Phase Controller for DrMOS NCP81234 The NCP81234, a dual−channel/two−phase synchronous buck controller, provides flexible power management solutions for applications supported by DrMOS. Operating in high switching frequency up to 1.2 MHz allows employing small size inductor and capacitors. Features Single Vin = 4.5 ~ 20 V with Input Feedforward Integrated 5.35 V LDO Vout = 0.6 V ~ 5.3 V Fsw = 200 k ~ 1.2 MHz PWM Output Compatible to 3.3 V and 5 V DrMOS Dual−Channel or Two−Phase Operation DDR Power Mode Option Interleaved Operation Differential Current Sense Compatible for both Inductor DCR Sense and DrMOS Iout 2 Independent Enables with Programmable Input UVLO Programmable DrMOS Power Ready Detection (DRVON) 2 Power Good Indicators Comprehensive Fault Indicator Externally Programmable Soft Start and Delay Time Programmable Hiccup Over Current Protection Hiccup Under Voltage Protection Recoverable Over Voltage Protection Hiccup Over Temperature Protection Thermal Shutdown Protection QFN−28, 5x5 mm, 0.5 mm Pitch Package This is a Pb−Free Device Typical Applications Telecom Applications Server and Storage System Multiple Rail Systems DDR Applications www.onsemi.com 1 28 QFN28 MN SUFFIX CASE 485BQ MARKING DIAGRAM 1 XXXXXXXX XXXXXXXX AWLYYWWG G XXXXX = Specific Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package (Note: Microdot may be in either location) PIN...