MP4255GVE-0001-Z

Overview

The MP4255GVE-0001-Z is a dual synchronous buck converter from Monolithic Power Systems, designed for power delivery applications. It operates with an input voltage range of 4 V to 36 V and provides two independent outputs adjustable from 1 V to 36 V. Each channel supports up to 3 A of output current. The device features a fixed switching frequency of 2.1 MHz and utilizes an I2C interface for configuration. It is housed in a QFN-21 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Dual-channel architecture providing independent regulation for two separate loads
• I2C digital interface enabling programmable control and monitoring
• Wide input voltage compatibility suitable for various power delivery standards

Applications

• Power delivery systems requiring multiple regulated rails
• USB charging infrastructure components
• Portable electronic devices needing compact dual-output solutions

Procurement Notes

Verify the specific suffix Z indicates RoHS compliance and halogen-free status according to manufacturer declarations. Confirm the QFN-21 package dimensions match your PCB footprint requirements. Ensure design tools support the I2C communication protocol used for device configuration. Check for any specific handling instructions related to the surface-mount installation style.

Selection Notes

Select this component when dual isolated or non-isolated buck conversion is required from a single wide-range input source. The I2C interface allows for dynamic adjustment of output parameters without external resistors. Consider the 2.1 MHz switching frequency for balancing efficiency and passive component size. Verify that the 3 A per channel rating meets the peak load demands of both connected circuits simultaneously.

Part Context

This part belongs to the MP4255 series of dual synchronous buck converters. It shares the QFN-21 form factor with other high-density power management ICs from the manufacturer. The series targets applications demanding precise voltage regulation and digital control capabilities in a minimal footprint.

Replacement Considerations

MP4255GVE-0000-P is a variant within the same series offering similar dual-buck functionality.