NCP81278DMNTXG Description

The NCP81278DMNTXG, a general?purpose two?phase synchronous buck controller, integrates gate drivers and PWM VID interface in a QFN20 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 conditions. Operating in high switching frequencies up to 800 kHz allows for employing small-size inductors and capacitors. The NCP81278DMNTXG is able to support all ceramic-capacitor applications.

NCP81278DMNTXG 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 Cycle?by?Cycle Current Limit

Over Voltage Protection

Fast Under Voltage Protection

Slow Under Voltage Protection (NCP81278T Only)

Thermal Shutdown Protection

QFN20, 3x3 mm, 0.4 mm Pitch Package

NCP81278DMNTXG Applications

GPU and CPU Power

Graphics Card Applications

Desktop and Notebook Applications