MPQ4263GQVE-0000-AEC1-Z

Overview

The MPQ4263GQVE-0000-AEC1-Z is a synchronous Buck-Boost switching regulator from Monolithic Power Systems, designed for automotive applications with AEC-Q100 qualification. It operates within an input voltage range of 3.6 V to 36 V and delivers an adjustable output voltage between 1 V and 36 V. The device integrates low-side MOSFETs and supports high-side current sensing alongside an I2C interface for configuration. Key electrical parameters include a quiescent current of 775 uA, a fixed switching frequency of 580 kHz, and operation across a temperature range of -40°C to +150°C.

Feature Summary

• Integrated low-side MOSFETs in a compact QFN-20 package
• Supports high-side current sensing for precise load monitoring
• Features I2C interface for digital control and configuration

Applications

• Automotive infotainment systems
• ADAS sensor power supplies
• Vehicle body electronics modules

Procurement Notes

Verify the specific suffix '0000' against official MPS documentation to confirm pinout and feature set variations. Ensure the component meets AEC-Q100 Grade requirements for your target automotive environment. Cross-reference the datasheet revision date to validate compatibility with your design specifications before finalizing procurement orders.

Selection Notes

Select this component when an input voltage may drop below or rise above the required output level, necessitating Buck-Boost topology. The integrated I2C interface allows for dynamic adjustment of operating parameters. Consider the 580 kHz switching frequency for balancing efficiency and external component size in space-constrained automotive PCB layouts.

Part Context

This part belongs to the MPQ4263-AEC1 series of automotive-grade power management ICs. It is specifically engineered to handle wide input voltage fluctuations common in automotive environments, such as cold crank and load dump conditions. The QFN-20 package provides thermal performance suitable for high-power density applications.

Replacement Considerations

Direct replacements must match the 36V/140W Buck-Boost specification and AEC-Q100 qualification. Verify that alternative parts support the same I2C interface and high-side current sensing capabilities. Check for identical QFN-20 footprint compatibility to ensure seamless integration into existing designs.