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IC manufacturers Monolithic Power Systems

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reference designMP28252

Monolithic Power Systems MP28252

High Efficiency 2A, 21V, 500kHz Synchronous Step-down Converter

Overview

TopologyBuck Converter
Input voltage6-21 V
Output 112 V / 2 A
IC revision1.11

Description

The MP28252 is a high frequency synchronous rectified step-down switch mode converter with built in internal power MOSFETs. It offers a very compact solution to achieve 2A continuous output current over a wide input supply range with excellent load and line regulation. The MP28252 has synchronous mode operation for higher efficiency over output current load range.

Current mode operation provides fast transient response and eases loop stabilization.

Full protection features include OCP and thermal shut down.

The MP28252 requires a minimum number of readily available standard external components and is available in a space saving 3mm x 4mm 14-pin QFN package.

Features

  • Wide 4.5V to 21V Operating Input Range
  • 2A Output Current
  • Low Rds(on) Internal Power MOSFETs
  • Proprietary Switching Loss Reduction Technique
  • High Efficiency Synchronous Mode Operation
  • Fixed 500kHz Switching Frequency
  • Sync from 300kHz to 2MHz External Clock
  • Internal Compensation
  • Integrated Bootstrap Diode
  • OCP Protection and Thermal Shutdown
  • Output Adjustable from 0.805V
  • Available in a 3mm x 4mm 14-Pin QFN Package

Typical applications

  • Networking Systems
  • Digital Set Top Boxes
  • Flat Panel Television and Monitors
  • Notebook Systems and I/O Power
  • Personal Video Recorders
  • Distributed Power Systems

More information

Products

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Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
SamplesAvailability & Sample
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7443552200
SPECWE-HCI SMT Flat Wire High Current Inductor, 2 µH, 14.8 A
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance2 µH
Performance Rated Current14.8 A
Saturation Current @ 10%5 A
Saturation Current @ 30%13 A
DC Resistance7.3 mΩ
Self Resonant Frequency53 MHz
MaterialWE-PERM 
Packaging Unit800 
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