IC reference design search
IC manufacturers Monolithic Power Systems

IC manufacturers (104)

reference designMP2451

Monolithic Power Systems MP2451

36V, 2MHz, 0.6A Step-Down Converter

Overview

TopologyBuck Converter
Input voltage3.3-36 V
Switching frequency1600-2400 kHz
Output 15 V / 0.6 A
IC revision1.33

Description

The MP2451 is a high frequency (2MHz) stepdown switching regulator with integrated internal high-side high voltage power MOSFET.It provides single 0.6A (or less) highly efficient output with current mode control for fast loopresponse.

The wide 3.3V to 36V input range accommodates a variety of step-downapplications in automotive input environment. A 3μA shutdown mode quiescent current allows use in battery-powered applications.

High power conversion efficiency over a wideload 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 MP2451 is available in the cost-effective SOT23-6L package.

Features

  • 130μA Operating Quiescent Current
  • Wide 3.3V to 36V Operating Input Range
  • 500mΩInternal Power MOSFET
  • 2MHz fixed Switching Frequency
  • Internally compensated
  • Stable with Ceramic Output Capacitors
  • Internal Soft-Start
  • Precision Current Limit Without Current Sensing Resistor

  • 90% Efficiency

  • Output Adjustable from +0.8V to 0.8xVIN
  • 3μA Low Shutdown Supply Current
  • -SOT23-6 and TSOT23-6 Packages

Typical applications

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

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IR(A)
ISAT(A)
fres(MHz)
Mount
RDC max.(mΩ)
Size
Version
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
7440430022
SPECWE-TPC SMT Tiny Power Inductor, 2.2 µH, 2.5 A
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance2.2 µH
Rated Current2.5 A
Saturation Current2.35 A
Self Resonant Frequency100 MHz
MountSMT 
DC Resistance28 mΩ
Size4828 
–
–Check availability
744043003
SPECWE-TPC SMT Tiny Power Inductor, 3.3 µH, 2.15 A
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TPC SMT Tiny Power Inductor
Inductance3.3 µH
Rated Current2.15 A
Saturation Current1.8 A
Self Resonant Frequency80 MHz
MountSMT 
DC Resistance35 mΩ
Size4828 
–
–Check availability
7447785004
SPECWE-PD SMT Power Inductor, 4.7 µH, 2.2 A
Simu­lation
Availability
–
Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

Download all 9 files as zip archive
ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance4.7 µH
Rated Current2.2 A
Saturation Current2.5 A
Self Resonant Frequency53 MHz
MountSMT 
DC Resistance78 mΩ
Size6033 
VersionRobust 
–Check availability