NCP81239AMNTXG - AMI Semiconductor / ON Semiconductor

Manufacturer Part Number

NCP81239AMNTXG

Manufacturer

onsemi

Introduction

The NCP81239AMNTXG is a PMIC DC-DC switching controller designed to handle step-up and step-down voltage conversion.

Product Features and Performance

Power Management IC (PMIC) for DC-DC conversion

PWM Signal output type

Supports both Buck (step-down) and Boost (step-up) topologies

Single output with dual-phase operation

Voltage support ranging from 4.5V to 28V

Adjustable switching frequency from 150kHz to 1.2MHz

Capability to synchronize with external clock

I2C serial interface for communication and control

Various control features including current limit and soft start

Product Advantages

Flexible voltage support accommodating a wide range of applications

Highly configurable switching frequency for design optimization

Multi-control features for enhanced performance and safety

Key Technical Parameters

Output Phases: 2

Voltage - Supply (Vcc/Vdd): 4.5V ~ 28V

Frequency - Switching: 150kHz ~ 1.2MHz

Operating Temperature: -40°C ~ 100°C

Mounting Type: Surface Mount

Package / Case: 32-VFQFN Exposed Pad

Supplier Device Package: 32-QFN (5x5)

Base Product Number: NCP81239

Quality and Safety Features

Current limiting capability for protection against overcurrent conditions

On Time Control and Soft Start features for controlled ramp-up and reduction of inrush current

Built-in temperature range that ensures reliable operation under varying environmental conditions

Compatibility

The device is compatible with a wide range of input voltages and systems requiring I2C communication for PMIC control.

Application Areas

Suitable for use in a variety of power regulation scenarios in electronics including computing devices, portable electronics, and embedded applications.

Product Lifecycle

Product Status is listed as "Not For New Designs" indicating availability for existing designs but suggesting that it is nearing discontinuation with a recommendation to look for newer alternatives for new designs.

Several Key Reasons to Choose This Product

Supports a broad range of input voltages, making it versatile for different power designs

The dual-phase operation allows for improved load handling and system stability

The compatibility with I2C communication offers design flexibility and ease of integration into complex systems

Adjustable switching frequency provides the designers with the ability to optimize efficiency and performance

Built-in safety and control features ensure reliable operation and protection of the end application

Surface mount package enables compact and space-efficient design layouts