MPQ4560DQ-AEC1-LF-Z

2A, 2MHz, 55V Buck Converter

Product Description

The MPQ4560 is a high frequency step-down switching regulator with built-in high-side power MOSFETs. It provides 2A output current mode control, 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 environments. 12µA shutdown mode supply current allows use in battery powered applications. High power conversion efficiency is achieved over a wide load range by reducing switching frequency at light load conditions to reduce switching and gate drive losses. Frequency foldback prevents runaway inductor current at startup, and thermal shutdown provides reliable fault-tolerant operation. By switching at 2 MHz, the MPQ4560 prevents electromagnetic interference problems such as those found in AM radio and ADSL applications. The MPQ4560 is available in a small 3mm x 3mm QFN10 and SOIC8 with an exposed pad package.

Product Features

Guaranteed Industrial Automotive Temperature Range Limits

Wide 4.5V to 55V operating input range

250 mV internal power FET

Programmable switching frequency up to 2 MHz

140µA Quiescent Current

Ceramic capacitors are stable

Internal soft start

Efficiency up to 95%_Output adjustable from 0.8V to 52V

Available in QFN10 (3mmx3mm) and SOIC8 packages with exposed pads.

AEC-Q100 qualified

technical parameter

fsw (max) (kHz)2000

Minimum input voltage 3.8

Vin (max) (V)55

Iout (max) (A)2

Isw Limit (typ) (A)3.2

Vfb (V)0.797

Iq (typ) (mA)0.14

Rated output 1

Vout (max) (V)52

Vout (min) (V)0.8

PG no

GradeAutomotive

PackageQFN-10 (3x3)

Control ModeCurrent Mode

Common FeaturesLight-Load Efficiency

Special FeaturesProgrammable Frequency