MPQ4315GRE-AEC1-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MPQ4315GRE-AEC1-Z is a synchronous step-down converter from Monolithic Power Systems, designed for automotive applications with AEC-Q100 qualification. It supports an input voltage range of 3.3 V to 45 V and delivers up to 5 A of continuous output current. The device features a low quiescent current of 18 μA in sleep mode and offers a configurable switching frequency between 350 kHz and 1 MHz. It utilizes a QFN-20 (4 mm x 4 mm) package with wettable flanks and operates within a junction temperature range of -40°C to +150°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side MOSFETs for efficient power conversion
• Frequency spread spectrum capability to minimize electromagnetic interference
• Power good indicator pin for monitoring output voltage status
• Configurable switching frequency with external clock synchronization support

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive battery-powered systems
• General DC-DC buck conversion in automotive environments
• High-efficiency power management for electronic control units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Z' indicates tape and reel packaging configuration as per manufacturer standards. Confirm that the AEC-Q100 grade meets your project's automotive reliability requirements. Ensure the QFN-20 wettable flank package aligns with your assembly inspection protocols. Cross-reference the exact part number with official MPS documentation to validate availability and lead times before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 45 V is required alongside high output current capabilities. The adjustable switching frequency allows optimization for efficiency or size constraints. Consider the low quiescent current for applications requiring minimal standby power consumption. Verify thermal performance requirements given the high current density in the compact QFN-20 package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MPQ4315 series of synchronous buck converters. It shares architectural similarities with other members like the MPQ4314 but offers higher current capacity. The 'GRE' designation typically refers to the RoHS-compliant green package variant, while 'AEC1' denotes automotive qualification. The 'Z' suffix specifies the standard tape and reel shipping format.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MPQ4315GRE-P is a compatible alternative with identical electrical specifications but different packaging format.