MP4255GVE-0000-P

Overview

The MP4255GVE-0000-P is a dual-channel synchronous buck converter and single LDO from Monolithic Power Systems, designed for power delivery applications. It features two independent step-down channels capable of delivering up to 3A output current each, with an input voltage range of 4V to 36V and adjustable output voltages from 1V to 36V. The device integrates an I2C interface for configuration and monitoring. Switching frequencies are configurable between 200kHz and 2.5MHz. The package is a 21-pin QFN (4x5mm) suitable for surface mount installation.

Feature Summary

• Dual high-current synchronous buck channels with integrated I2C control interface
• Wide input voltage range supporting diverse power delivery architectures
• Configurable switching frequency for optimized efficiency and component size
• Integrated linear regulator channel for low-noise supply requirements

Applications

• Power delivery systems requiring multi-rail regulation
• Industrial equipment with wide input voltage ranges
• Consumer electronics needing compact multi-output power solutions
• Automotive infotainment and connectivity modules

Procurement Notes

Verify the specific suffix against official MPS documentation to confirm pinout and electrical characteristics. Ensure compatibility with your PCB footprint, as the QFN-21 package requires precise soldering techniques. Confirm that the I2C address and register map align with your system controller. Check for RoHS compliance status in the latest datasheet revision before finalizing procurement.

Selection Notes

Select this component when multiple regulated rails are needed from a single wide-voltage source. The dual 3A buck channels reduce board space compared to discrete solutions. The I2C interface allows dynamic adjustment of output voltages and frequencies. Consider thermal management requirements due to the high current density in the small QFN package. Verify that the required switching frequency falls within the supported 200kHz to 2.5MHz range.

Part Context

This part belongs to the MP4255 series of mixed-signal PMICs from Monolithic Power Systems. It combines synchronous buck converters with an LDO to provide comprehensive power management in a single package. The series is targeted at applications requiring high integration and flexible configuration options for complex power trees.

Replacement Considerations

Direct replacements may include other MPS dual-buck converters with I2C interfaces, such as the MP4255GVE-0000-Z. Verify pin-to-pin compatibility and electrical specifications before substitution. Alternative manufacturers may offer similar functionality but require schematic and layout modifications.