MP9943GQ-Z - Monolithic Power Systems Inc.

Manufacturer Part Number

MP9943GQ-Z

Manufacturer

Monolithic Power Systems

Introduction

High-efficiency step-down switching regulator for power management applications

Product Features and Performance

Step-down (Buck) topology for efficient down-conversion of voltage

Adjustable output allows for versatile use across various devices

Synchronous rectification for improved power efficiency

High frequency switching at 410kHz enables smaller passive components

Capable of delivering 3A current output

Wide input voltage range from 4V to 36V

Broad output voltage adjustability from 0.8V to 28.5V

Suited for operation in extreme temperatures, ranging from -40°C to 125°C

Surface mount 8-VDFN package compatible with automated assembly processes

Product Advantages

Enables compact, efficient power supply designs

Reduced energy loss due to high conversion efficiency

Flexibility in application due to wide input and output voltage ranges

Long-term reliability in harsh temperature environments

Integrated synchronous rectifier minimizes the need for external components

Key Technical Parameters

Input Voltage (Min): 4V

Input Voltage (Max): 36V

Output Voltage (Min/Fixed): 0.8V

Output Voltage (Max): 28.5V

Current Output: 3A

Switching Frequency: 410kHz

Operating Temperature Range: -40°C to 125°C

Mounting Type: Surface Mount

Package / Case: 8-VDFN

Quality and Safety Features

Built to withstand high-temperature environments

Synchronous rectifier for lower heat dissipation

Compatibility

Compatible with multiple applications due to variable input and output voltages

Designed for use with automated assembly surface mount technology

Application Areas

Consumer electronics

Industrial power systems

Networking equipment

Telecommunications

Automotive electronics

Product Lifecycle

Active product status, not nearing discontinuation

Continual support and availability expected

Several Key Reasons to Choose This Product

High integration suitable for compact and space-constrained applications

Wide range of voltage adaptability for a variety of electronics

High-efficiency design for energy savings and thermal management

Robust construction suitable for industrial and automotive use

Monolithic Power Systems’ reputable quality and performance standards