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IC manufacturers Monolithic Power Systems

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reference designMP2325

Monolithic Power Systems MP2325

High Efficiency 3A, 24V, 500kHz Synchronous Step-Down Converter

Overview

TopologyBuck Converter
Input voltage4.5-24 V
Switching frequency420-620 kHz
Output 13.3 V / 3 A
Output 25 V / 3 A
IC revision1.0

Description

The MP2325 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 3A continuous output current over a wide input supply range with excellent load and line regulation. The MP2325 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 MP2325 requires a minimum number of readily available standard external components and is available in a space saving 8-pin TSOT23 package.

Features

 Wide 4.5V to 24V Operating Input Range

  • 90mΩ/40mΩ Low Rds(on) Internal Power MOSFETs
  • Low Quiescent Current
  • High Efficiency Synchronous Mode Operation
  • Fixed 500kHz Switching Frequency
  • Frequency Sync from 200kHz to 2MHz External Clock
  • Power Save Mode at light load
  • Internal Soft Start
  • Power Good Indicator
  • OCP Protection and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in an 8-pin TSOT-23 package

Typical applications

  • Notebook Systems and I/O Power
  • Flat Panel Television and Monitors
  • Digital Set Top Boxes

More information

Products

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Data­sheet
Simu­lation
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Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
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744314490
SPECWE-HCI SMT Flat Wire High Current Inductor, 4.9 µH, 8.3 A
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Downloads9 files

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance4.9 µH
Performance Rated Current8.3 A
Saturation Current @ 10%2.2 A
Saturation Current @ 30%6.5 A
DC Resistance14.5 mΩ
Self Resonant Frequency56 MHz
MaterialSuperflux 
Packaging Unit1000 
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