IC manufacturers Monolithic Power Systems

IC manufacturers (97)

Monolithic Power Systems MP28253

21V, 3A, 500kHz Synchronous Step-down Converter

Overview

TopologyBuck Converter
Input voltage8-21 V
Switching frequency425-575 kHz
Output 11.2 V / 3 A
IC revision1.03

Description

The MP28253 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 MP28253 operates at high efficiency over a wide 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 MP28253 requires a minimum number of readily available standard external components and is available in a space saving 3x4mm 14-pinQFN package.

Features

  • Wide 4.5V to 21V Operating Input Range
  • 3A Output Current
  • Low RDS(ON) Internal Power MOSFETs
  • Proprietary Switching Loss Reduction Technique
  • Fixed 500kHz Switching Frequency
  • External Soft-Start
  • Sync from 300kHz to 2MHz External Clock
  • Internal Compensation
  • Integrated Bootstrap Diode
  • Over-Current Protection and Hiccup
  • Thermal Shutdown
  • Output Adjustable from 0.8V
  • Available in 14-pin QFN3x4 Package

Typical applications

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

Products

Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Samples
744311220SPEC
8 files WE-HCI SMT Flat Wire High Current Inductor 2.2 10.2 5.6 13 11.4 52 Superflux
Order Code Data­sheet Simu­lation
744311220SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesL
(µH)
IRP,40K
(A)
ISAT,10%
(A)
ISAT,30%
(A)
RDC
(mΩ)
fres
(MHz)
Material Samples