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reference designMP2452

Monolithic Power Systems MP2452

1A, 36V, 1MHz Step-Down Converter

Overview

TopologyBuck Converter
Input voltage3.3-36 V
Switching frequency800-1200 kHz
Output 11.2 V
IC revision1.0

Description

The MP2452 is a high frequency (1MHz) stepdown switching regulator with integrated internal high-side high voltage power MOSFET. It provides up to 1A highly efficient output current with current mode control for fast loopresponse.The wide 3.3V to 36V input range accommodates a variety of step-down applications in automotive input environment. A 3µA shutdown modequiescent current allows use in battery-powered applications.High power conversion efficiency over a wide load range is achieved by scaling down the switching frequency at light load condition to reduce the switching and gate driving losses.Frequency fold-back helps prevent inductor current runaway during start-up. Thermal shutdown provides reliable, fault-tolerant operation.The MP2452 is available in the 2mm x 3mm QFN8 package.

Features

  • 1A Continuous Load Current
  • 130 µA Operating Quiescent Current
  • Wide 3.3V to 36V Operating Input Range
  • 500 mΩ Internal Power MOSFET
  • 1MHz fixed Switching Frequency
  • Internally compensated
  • Stable with Ceramic Output Capacitors
  • Internal Soft-Start

  • 90% Efficiency

  • +0.794V FB Reference Voltage
  • Output Adjustable from +0.794V to 33V
  • 3µA Low Shutdown Supply Current
  • 2mm x 3mm QFN8 Package

Typical applications

  • Distributed Power Systems
  • Battery Powered Systems
  • Automotive Systems
  • High Voltage Power Conversion
  • Industrial Power Systems

More information

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744062003
SPECWE-TPC SMT Tiny Power Inductor, 3.3 µH, 2.8 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance3.3 µH
Rated Current2.8 A
Saturation Current2.5 A
Self Resonant Frequency55 MHz
MountSMT 
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