MPQ4558DQ-AEC1-LF-P

$4.81

Description：IC REG BUCK ADJ 1A 10QFN
Series：-
Mfr：Monolithic Power Systems Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:cd974d790c8e Category: Voltage Regulators - DC DC Switching Regulators Brand: Monolithic Power Systems Inc.

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Product introduction

MPQ4558DQ-AEC1-LF-P is listed in the Voltage Regulators - DC DC Switching Regulators range at ChipApex. The manufacturer field lists Monolithic Power Systems Inc.. Its product description is IC REG BUCK ADJ 1A 10QFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for MPQ4558DQ-AEC1-LF-P

Description：IC REG BUCK ADJ 1A 10QFN
Series：-
Mfr：Monolithic Power Systems Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Function：Step-Down
Output Configuration：Positive
Topology：Buck
Output Type：Adjustable
Number of Outputs：1
Voltage - Input (Min)：3.8V
Voltage - Input (Max)：55V
Voltage - Output (Min/Fixed)：0.8V
Voltage - Output (Max)：52V
Current - Output：1A
Frequency - Switching：Up to 2MHz
Synchronous Rectifier：No
Operating Temperature：-40°C ~ 125°C (TJ)
Mounting Type：Surface Mount
Package / Case：10-VFDFN Exposed Pad
Supplier Device Package：10-QFN (3x3)
Grade：Automotive
Qualification：AEC-Q100

Voltage Regulators - DC DC Switching Regulators datasheet and documents for MPQ4558DQ-AEC1-LF-P

MPQ4558DQ-AEC1-LF-P

Voltage Regulators - DC DC Switching Regulators Overview

The MPQ4558DQ-AEC1-LF-P is a non-synchronous step-down converter manufactured by Monolithic Power Systems. It operates with an input voltage range of 3.8 V to 55 V and delivers a continuous output current of 1 A. The adjustable output voltage spans from 800 mV to 52 V. Key electrical parameters include a quiescent current of 140 uA and a switch frequency up to 2 MHz. The device is housed in a QFN-10 package and supports operation within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrated high-side power MOSFET for efficient buck conversion
Frequency adjustment capability up to 2 MHz to minimize electromagnetic interference
Automotive-grade qualification ensuring reliability in harsh environments
Built-in protection mechanisms including over-temperature shutdown

Voltage Regulators - DC DC Switching Regulators Applications

Automotive infotainment systems
Industrial power distribution networks
Battery-powered equipment requiring regulated voltage rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'P' indicates reel packaging when ordering. Confirm that the AEC-Q100 certification aligns with target automotive requirements. Ensure the non-synchronous topology suits the load characteristics. Check for any obsolescence notices as this series may have alternative recommendations for new designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring wide input voltage tolerance up to 55 V. The 1 A output capacity fits moderate load scenarios. Consider the non-synchronous design for cost-sensitive implementations where efficiency peaks are less critical than simplicity. Verify thermal management needs for the QFN-10 package under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MPQ4558 family of synchronous and non-synchronous buck converters designed for automotive and industrial use. It shares core architecture with other variants but differs in switching frequency options and package configurations. The MPQ prefix denotes automotive-grade qualification, distinguishing it from standard commercial parts.