IC reference design search
IC manufacturers Monolithic Power Systems

IC manufacturers (104)

reference designMP2249

Monolithic Power Systems MP2249

1MHz, 6V, 3A, Low-Voltage Synchronous Step-Down Converter

Overview

TopologyBuck Converter
Input voltage2.5-6 V
Output 11.5 V
Output 23.3 V
Output 36 V / 3 A
Output 41.8 V
Output 52.5 V
Output 61.2 V
IC revision1.0

Description

The MP2249 is a 1MHz constant frequency,current mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency and eliminates the need for an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium- Ion (Li+) battery.

The MP2249 can supply 3A of load current from a 2.5V to 6V input voltage. It can run at 100% duty cycle for low dropout applications. The MP2249 provides internal soft-start control to reduce rush current and output discharge function to control discharging of the output capacitor.

The MP2249 is available in small 3mmx3mm TQFN10 or SOIC8E package.

Features

  • High Efficiency: Up to 90%
  • Power Save Mode at Light Load
  • 1MHz Constant Switching Frequency
  • Up to 4.5A Peak Current
  • 2.5V to 6V Input Voltage Range
  • Output Adjustable from 0.6V to VIN
  • 100% Duty Cycle in Dropout
  • Output Discharge Function
  • Internal Soft-Start Control
  • Power Good Indicator
  • Short Circuit Protection
  • Thermal Fault Protection
  • Available in 3mmx3mm TQFN10 or SOIC8E Package

Typical applications

  • Portable Instruments
  • MP3 Players
  • Microprocessors and DSP Core Supplies
  • Smart Phones
  • PDAs
  • Cellular Phones
  • Digital Still and Video Cameras

More information

Products

Log in now to view availability and request availability forecasts. LOGIN
Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
Material
Qty.
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
744310200
SPECWE-HCI SMT Flat Wire High Current Inductor, 2 µH, 8.7 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-HCI SMT Flat Wire High Current Inductor
Inductance2 µH
Performance Rated Current8.7 A
–
DC Resistance15.62 mΩ
Self Resonant Frequency58 MHz
Size7030 
VersionSMT 
Saturation Current @ 10%3 A
Saturation Current @ 30%9 A
DC Resistance14.2 mΩ
MaterialSuperflux 
Packaging Unit1500 
–Check availability
744777002
SPECWE-PD SMT Power Inductor, 2.2 µH, 6.9 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
Inductance2.2 µH
Performance Rated Current6.9 A
Saturation Current6.5 A
DC Resistance20 mΩ
Self Resonant Frequency60 MHz
Size7345 
VersionStandard 
Saturation Current @ 10%6.5 A
Saturation Current @ 30%8 A
–
–
Packaging Unit1000 
–Check availability