Integrated Power Stage
Lite Power Stage
uP9646
Driver Integrated High Current 30V Power Stage Module
Datasheets PDF
General Description
The uP9646 is a driver integrated 30V power stage module for multi-phase synchronous buck DC-DC converter in desktop and notebook applications. The device is operated with 5V input for integrated MOSFET driver, and its MOSFETs are fully optimized to deliver up to 50A output current with high conversion efficiency for CPU, GPU and DDR memory power supplies. This part features Intel® PS4 mode support, thermal warning, over current protection, and zero current detection functions. The thermal warning output is used by system to secure safety operation. The over current protection function of the device further enhances protection for the converter. The zero current detection function provides more application flexibility. The uP9646 also provides comprehensive protection functions, including under voltage lockout for VCC/VDRV, and over temperature protection. The uP9646 is available with a compact WQFN 5×5-31L package.
Pin Configuration & Typical Application Circuit
Top View
Feature
- Capable of Delivering Continuous Current up to 50A, Peak Current Up to 120A(10us) and 80A(10ms)
- Switching Frequency up to 2MHz
- Support Intel® PS4 Low Power Mode
- Input Voltage VIN Range: 2.5V to 25V
- VCC and VDRV Supply Input Range: 4.5V to 5.5V
- Compatible with 3.3V / 5V PWM Logic with Tri-State Input
- Support PWM Resistor Strap Setting Application
- Integrated 5V MOSFET Driver and 30V MOSFETs
- VCC / VDRV Under Voltage Lockout (UVLO)
- Over Current Protection
- Thermal Warning Function
- Over Temperature Protection
- Zero Current Detection (ZCDEN#) Control for Diode Emulation / CCM Operation
- Low Profile WQFN5x5-31L Package
- RoHS Compliant and Halogen Free
Application
- Desktop Computers
- Notebook Computers
- Graphic Cards
- High Frequency, Low Profile Buck DC-DC Converters
- Voltage Regulator for CPUs and DDR Memory Arrays