NCP81611MNTXG - onsemi

Manufacturer Part Number

NCP81611MNTXG

Manufacturer

onsemi

Introduction

The NCP81611MNTXG is a Power Management Integrated Circuit (PMIC) designed for DC-DC switching control.

Product Features and Performance

PWM Signal output for precise control

Step-Down (Buck) topology for efficient voltage reduction

Supports 4 output channels with 4-phase control

Wide voltage supply range from 2.8V to 20V

Adjustable switching frequency from 250kHz to 1.2MHz

Integrated synchronous rectifier for improved efficiency

I2C and PSI serial interfaces for enhanced communication and control

Product Advantages

Multi-phase architecture for high-performance applications

Low RDS(on) MOSFETs for higher efficiency and thermal performance

Optimized pin-out for simplified PCB layout

Soft start feature to minimize inrush current at startup

Key Technical Parameters

Number of Outputs: 4

Output Phases: 4

Voltage - Supply (Vcc/Vdd): 2.8V ~ 20V

Frequency - Switching: 250kHz ~ 1.2MHz

Synchronous Rectifier: Yes

Control Features: Current Limit, Enable, Frequency Control, Power Good, Ramp, Soft Start

Quality and Safety Features

Built-in Current Limit for overcurrent protection

Thermal shutdown function to prevent overheating

Compatibility

Surface Mount packaging for easy integration

40-VFQFN Exposed Pad compatible with standard QFN footprints

Application Areas

Motherboards

Graphics Cards

CPU/VPU Power Supplies

Multi-phase Power Systems

Product Lifecycle

Product Status: Active

Well-supported and not nearing discontinuation

Next-gen or upgraded variants may become available as technology advances

Several Key Reasons to Choose This Product

Enables efficient power distribution within complex multi-phase systems

Supports flexibility in design with a programmable frequency range

Facilitates thermal management through high-efficiency integration

I2C and PSI interfaces offer advanced monitoring and control capabilities

Onsemi's reputation for reliability and performance in power management solutions