NCP81231 Series

Buck Controller, USB Power Delivery and Type-C Applications

Catalog

Buck Controller, USB Power Delivery and Type-C Applications

Part	Serial Interfaces	Control Features	Frequency - Switching [Min]	Frequency - Switching [Max]	Function	Clock Sync	Output Type	Output Phases	Output Configuration	Duty Cycle (Max) [Max]	Synchronous Rectifier	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Supplier Device Package	Mounting Type	Number of Outputs	Operating Temperature [Min]	Operating Temperature [Max]	Topology	Package / Case
ON Semiconductor NCP81231MNTXG	I2C	Current Limit Enable	150 kHz	1.2 MHz	Step-Down		Transistor Driver	1	Positive	100 %		4.5 V	28 V	32-QFN (5x5)	Surface Mount	1	-40 °C	100 °C	Buck	32-VFQFN Exposed Pad

Catalog

Buck Controller, USB Power Delivery and Type-C Applications

Key Features

• I2C configurability

• Synchronous step down controller with drivers

• Meets USB-PD specification

• Overvoltage and overcurrent protection

Description

The NCP81231 USB Power Delivery (PD) Controller is a synchronous step down controller optimized for USB-PD type C solutions. They are ideal for docking station, car chargers, desktop, and monitor applications. The NCP81231 utilizes an I2C interface that can interface to a uC to meet USB-PD timing, slew rate, and voltage requirements. The NCP81231 operates from 4.5V to 28V