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reference designMP38900-B

Monolithic Power Systems MP38900-B

High Efficiency, Fast Transient, 10A, 16V Synchronous Step-down Converter In a Tiny QFN20 (3x4mm) Package

Overview

TopologyBuck Converter
Input voltage4.5-16 V
Output 11.2 V / 10 A
IC revision1.1

Description

The MP38900/MP38900-B is a fully integrated, high frequency synchronous rectified step-downn switch mode converter. It offers a very compactsolution to achieve 10A continuous output current over a wide input supply range with excellent load and line regulation. The MP38900/MP38900-B operates at high efficiency over a wide output current load range.

To futher optimize efficiency at light load, the VCC supply of MP38900 is designed to be biased externally.Constant-On-Time (COT) control mode provides fast transient response and eases loop stabilization.Full protection features include SCP, OCP, OVP,UVP and thermal shutdown.The MP38900/MP38900-B requires a minimum number of readily available standard external components and is available in a space-saving QFN20 (3x4mm) package.

Features

  • Wide 4.5V to 16V Operating Input Range
  • 10A Output Current
  • Internal 27mΩ High-Side, 10mΩ Low-Side Power MOSFETs
  • Proprietary Switching Loss Reduction Technique
  • 1% Reference Voltage
  • Programmable Soft Start Time
  • Soft Shutdown (MP38900,)
  • High-Z Shutdown (MP38900-B)
  • Programmable Switching Frequency
  • SCP, OCP, OVP, UVP Protection and Thermal Shutdown
  • Output Adjustable from 0.8V to 13V
  • Available in a QFN20 (3x4mm) Package

Typical applications

  • Networking Systems
  • Notebook Systems and I/O Power
  • Optical Communication Systems
  • Distributed Power POL Systems

More information

Products

Order Code
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
744355256
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.56 µH, 35.6 A
Simu­lation
Availability
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Downloads9 files

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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
Inductance0.56 µH
Performance Rated Current35.6 A
Saturation Current @ 10%12.5 A
Saturation Current @ 30%30 A
DC Resistance1.61 mΩ
Self Resonant Frequency100 MHz
MaterialWE-PERM 
Packaging Unit800 
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