MP4559DQ-LF-Z

$2.66

Description：IC REG BUCK ADJ 1.5A 10QFN
Series：MP
Mfr：Monolithic Power Systems Inc.
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:871fe948ada4 Category: Voltage Regulators - DC DC Switching Regulators Brand: Monolithic Power Systems Inc.

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Product introduction

MP4559DQ-LF-Z 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 1.5A 10QFN. Review the specifications below when checking this part for your BOM.

Voltage Regulators - DC DC Switching Regulators specifications for MP4559DQ-LF-Z

Description：IC REG BUCK ADJ 1.5A 10QFN
Series：MP
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：1.5A
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：-

Voltage Regulators - DC DC Switching Regulators datasheet and documents for MP4559DQ-LF-Z

MP4559DQ-LF-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MP4559DQ-LF-Z is a high-frequency buck converter from Monolithic Power Systems. It supports an input voltage range of 3.8 V to 55 V and delivers up to 1.5 A output current. The adjustable output voltage spans from 800 mV to 52 V. Operating at a switch frequency of 2 MHz, it features a static current of 140 uA. The device is housed in a QFN-10 package and operates within a temperature range of -40 C to +125 C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

Integrates high-side power MOSFET for compact design
Optimizes efficiency across wide load ranges via frequency reduction
Includes internal soft start and thermal shutdown protection

Voltage Regulators - DC DC Switching Regulators Applications

Automotive systems requiring wide input voltage tolerance
Industrial equipment power management
Battery-powered applications utilizing low quiescent current

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the component status before integration into new designs. Official documentation indicates this part is not recommended for new designs. Confirm availability with the manufacturer or authorized distributors, as production may be limited to existing customer requirements only.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Engineers should evaluate alternative components for new projects due to the non-recommended status. Consider devices offering updated specifications or longer lifecycle support. Ensure the selected replacement maintains compatibility with the required input voltage, output current, and thermal performance constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the MP4559 series of switching regulators. It is designed for step-down conversion in environments demanding high reliability and efficient power management. The series targets applications where space constraints and thermal performance are critical factors in system architecture.