MPQ4561-AEC1

MPQ4561-AEC1

1.5A, 2MHz, 55V Step-Down Converter

Datasheet

Description

The MPQ4561 is a high-frequency, step-down, switching regulator with an integrated internal high-side high voltage power MOSFET. It provides up to a 1.5A output with current mode control for fast loop response and easy compensation. The wide 4.5V-to-55V input range accommodates a variety of step-down applications, including those in automotive input environment. A 12µA shutdown mode supply current makes it suitable for battery-powered applications. A scaled-down switching frequency in light-load conditions provides high power-conversion efficiency over a wide load range while reducing switching and gate driver losses. The frequency foldback prevents inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. By switching at 2MHz, the MPQ4561 is able to prevent EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications. The MPQ4561 is available in a 3mm x 3mm QFN10 package with an exposed pad.

Features & Benefits

Guaranteed Industrial/Automotive Temperature Range Limits
Wide 3.8V to 55V Operating Input Range
300mO Internal Power MOSFET
Up to 2MHz Programmable Switching Frequency
140µA Quiescent Current
Stable with Ceramic Capacitor
External Soft-Start
Up to 95% Efficiency
Output Adjustable from 0.8V to 52V
Available in QFN10 (3mmx3mm) package
AEC-Q100 Qualified

Active Part Numbers:

MPQ4561DQ-AEC1-LF-P MPQ4561DQ-AEC1-LF-Z

Meaning of P & Z

Related Products

EV4561DQ-00A 1.5A, 55V, 2MHz Step-Down Converter Evaluation Board

The EV4561DQ-00A is an evaluation board for the MP4561, a high frequency step-down regulator with an integrated power MOSFET.

The MP4561 integrates a 300mΩ MOSFET that provides 1.5A load current over a wide operating input voltage of 4.5V to 55V.

Current mode control provides fast transient response and eases loop stabilization. An external soft-start prevents inrush current at turn-on.

The EV4561DQ-00A is a fully assembled and tested PCB. It generates a +3.3V output voltage at load current up to 1.5A from an 8V to 55V input range. Switching frequency is set at 500KHz.

$25.00
+ tax