NCP81145 Series

VR12.5 Buck MOSFET Driver

Catalog

VR12.5 Buck MOSFET Driver

Part	Package / Case	High Side Voltage - Max (Bootstrap) [Max]	Voltage - Supply [Min]	Voltage - Supply [Max]	Channel Type	Input Type	Supplier Device Package	Mounting Type	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Gate Type	Driven Configuration	Number of Drivers	Operating Temperature [Max]	Operating Temperature [Min]	Logic Voltage - VIL, VIH
ON Semiconductor NCP81145MNTBG	8-VFDFN Exposed Pad	35 V	4.5 V	5.5 V	Synchronous	Non-Inverting	8-DFN (2x2)	Surface Mount	11 ns	16 ns	N-Channel MOSFET	Half-Bridge	2	150 °C	-40 °C	0.6 V 3.3 V

Catalog

VR12.5 Buck MOSFET Driver

Key Features

• Faster rise and fall times

• Adaptive anti-cross-conduction circuit

• Zero cross detection function

• Output disable control turns off both MOSFETs

• Undervoltage lockout

• Power saving operation under light load conditions

Description

The NCP81145 is a high performance dual MOSFET gate driver optimized to drive the gates of both high-side and low-side power MOSFETs in a synchronous buck converter. It can drive up to 3nF load with a 25ns propagation delay and 20ns transition time.Adaptive anti-cross-conduction and power saving operation circuit can provide a low switching loss and high efficiency solution for notebook systems.The UVLO function guarantees the outputs are low when the supply voltage is low.