onsemi NCP81278
The NCP81278, a general−purpose two−phase synchronous buck controller, integrates gate drivers and PWM VID interface in a QFN−20 package and provides a compact−footprint power management solution for new generation computing processors. It has a programmable power save interface (PSI) and is able to operate in 1−phase diode emulation mode to obtain high efficiency in light−load condition. The part is able to support all−ceramic−capacitor applications.| Part No. | NCP81278 |
|---|---|
| Datasheet | NCP81278 Download |
| Manufacturer |  onsemi |
| Description | Compact 2-Phase Synchronous Buck Controller |
| Buy | Stock & Price |
FEATURES
● 3.6 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 kHz ~ 800 kHz Switching Frequency
● Power Saving Interface (PSI)
● Support both 3.3 V and 1.8 V VID
● Power Good Output
● Programmable Over Current Protection
● Over Voltage Protection
● Under Voltage Protection
● Thermal Shutdown Protection
● QFN20, 3x3 mm, 0.4 mm Pitch Package Typical
APPLICATIONS
● GPU and CPU Power● Graphics Card
APPLICATIONS
● Desktop and NotebookAPPLICATIONS
QFN20 CASE 485BC MARKING DIAGRAM 81278 ALYWG G 81278 A L Y W G = Specific Device Code = Assembly Location = Wafer Lot = Year = Work Week = Pb−Free Package (Note: Microdot may be in either location) PIN CONNECTIONS PH1 LG1 PVCC LG2 PH2 BST1 HG1 EN PSI VID 1 GND BST2 HG2 PGOOD COMP/ILMT FB VIDBUF REFIN VREF FS FBRTN (Top View) ORDERING INFORMATION Device NCP81278MNTXG Package QFN20 (Pb−Free) Shipping† 4,000 / Tape & Reel †For information on tape a...
