MPQ4571GQB-AEC1-P

Voltage Regulators - DC DC Switching Regulators Overview

The MPQ4571GQB-AEC1-P is a fully integrated synchronous buck converter from Monolithic Power Systems, designed for automotive applications with AEC-Q100 qualification. It supports an input voltage range of 4.5 V to 60 V and delivers up to 1 A output current. The device operates at a fixed switching frequency of 2.2 MHz and features a low quiescent current of 40 uA. Packaged in a QFN-12 footprint, it provides efficient power regulation within the PMIC category.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fully integrated synchronous buck topology for high-efficiency step-down conversion
• Automotive-grade reliability certified under AEC-Q100 standards
• Wide input voltage tolerance supporting 4.5 V to 60 V operation
• Compact QFN-12 package design optimized for space-constrained layouts

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• ADAS sensor power supplies
• Body electronics modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific suffix matches the required automotive grade and packaging configuration. Confirm the QFN-12 package variant aligns with PCB footprint requirements. Ensure compliance with AEC-Q100 specifications for the target application environment. Cross-reference the manufacturer part number against official distributor catalogs to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 60 V is required alongside a 1 A output capability. The 2.2 MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 40 uA quiescent current for standby power efficiency requirements in automotive environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This model belongs to the MPQ45xx series of synchronous buck converters from Monolithic Power Systems. It shares architectural similarities with other devices in the family but is distinct due to its specific 60 V input rating and 1 A current limit. The AEC1 suffix denotes automotive qualification, differentiating it from commercial-grade variants.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other MPS automotive buck converters with similar voltage and current ratings, such as the MPQ4570 or MPQ4572 series, provided they meet the same AEC-Q100 and QFN-12 package constraints.