NCP81172
NCP81172 is 2-Phase Synchronous Buck Controller manufactured by onsemi.
2-Phase Synchronous Buck
Controller with Integrated
Gate Drivers and PWM VID
Interface
The NCP81172, a general- purpose two- phase synchronous buck controller, integrates gate drivers and PWM VID interface in a QFN- 24 package and provides a pact- footprint power management solution for new generation puting processors. It receives power save mand (PSI) from processors and operates in 1- phase diode emulation mode to obtain high efficiency in light- load condition. Operating in high switching frequency up to 800 k Hz allows employing small size inductor and capacitors. The part is able to support all- ceramic- capacitor applications.
Features
- 4.5 V to 24 V Input Voltage Range
- Output Voltage up to 2.0 V with PWM VID Interface
- Differential Output Voltage Sense
- Integrated Gate Drivers
- 200 k Hz ~ 800 k Hz Switching Frequency
- Power Saving Interface (PSI)
- Power Good Output
- Programmable Over Current Protection
- Over Voltage Protection
- Under Voltage Protection
- Temperature Sense and Alert Output
- Thermal Shutdown Protection
- QFN- 24, 4 x 4 mm, 0.5 mm Pitch Package
- This is a Pb- Free Device
Typical Applications
- GPU and CPU Power
- Graphics Card Applications
- Desktop and Notebook Applications http://onsemi.
1 24 QFN24 CASE 485L
MARKING DIAGRAM
81172 ALYWG
81172 A L Y W
= Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week
= Pb- Free...
