IC reference design search
IC manufacturers Monolithic Power Systems

IC manufacturers (104)

reference designMPQ4459

Monolithic Power Systems MPQ4459

Industrial Grade,1.5A, 4MHz, 36V Step-Down Converter

Overview

TopologyBuck Converter
Input voltage4.5-36 V
Switching frequency4000 kHz
Output 136 V / 1.5 A
IC revision1.01

Description

The MPQ4459 is a high frequency step-down switching regulator with an integrated internal high-side high voltage power MOSFET. It provides 1.5A output with current mode control for fast loop response and easy compensation. The wide 4.5V to 36V input range accommodates a variety of step-down applications, including those in automotive systems. A 100µA operational quiescent current is suitable for use in battery-powered applications. The frequency foldback helps prevent inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation. By switching at 4MHz, the MPQ4459 prevents EMI (Electromagnetic Interference) noise problems, such as those found in AM radio and ADSL applications. The MPQ4459 is available in thin 10-pin 3x3mm TQFN package

Features

  • Guaranteed Industrial Temp Range
    • 100μA Quiescent Current
    • Wide 4.5V to 36V Operating Input Range
    • 150mΩ Internal Power MOSFET
    • Up to 4MHz Programmable Switching Frequency
    • Ceramic Capacitor Stable
    • Internal Soft-Start
    • Precision Current Limit without a Current Sensing Resistor
    • Up to 95% Efficiency
    • Output Adjustable from 0.8V to 36V
    • Available in 10-Pin 3x3mm TQFN Package

Typical applications

  • Distributed Power Systems
  • Automotive Systems
  • High Voltage Power Conversion
  • Battery Powered Systems
  • Industrial 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)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
SamplesAvailability & Sample
Log in now to view availability and request availability forecasts. LOGIN
7447789003
SPECWE-PD SMT Power Inductor, 3.3 µH, 4.9 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
Inductance3.3 µH
Performance Rated Current4.9 A
DC Resistance30 mΩ
Self Resonant Frequency61 MHz
Size7332 
VersionRobust 
–Check availability