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reference designMPQ4470A

Monolithic Power Systems MPQ4470A

High-Efficiency, Fast-Transient, 5A, 36V Synchronous, Step-Down Converter AEC-Q100 Qualified

Overview

TopologyBuck Converter
Input voltage4.5-36 V
Switching frequency100-1000 kHz
Output 13.3 V / 5 A
IC revision1.12

Description

The MPQ4470/4470A is a fully-integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter. It offers a very compactsolution to achieve a 5A, continuous-output current over a wide input-supply range with excellent load and line regulation. It also provides fast transient response and good stability for wide input-supply and load range.The MPQ4470/4470A operates at high efficiency over a wide output current load range.

MPQ4470 has full protection features include SCP, OCP, OVP latch, UVP, and thermal shutdown. MPQ4470A has the same protection features to MPQ4470 except has no OVP latch function.

The MPQ4470/4470A requires a minimal number of readily-available, standard, external components, and is available in a space-saving3mm×4mm, 20-pin,QFN package.

Features

    • Wide 4.5V-to-36V Operating Input Range
    • Guaranteed 5A, Continuous Output Current
    • Internal 40mΩ High-Side, 20mΩ Low-Side Power MOSFETs
    • Proprietary Switching-Loss-Reduction Technology
    • 1% Reference Voltage
    • Programmable Soft-Start Time
    • Low Drop-out Mode
    • 200kHz-to-1MHz Switching Frequency
    • SCP, OCP, OVP Latch (MPQ4470 only), UVP, and Thermal Shutdown
    • Output Adjustable from 0.8V to 0.9×VIN
    • Available in a 3mm×4mm 20-pin QFN Package
    • Available in AEC-Q100 Grade 1

Typical applications

  • Optical Communications Systems
  • Networking Systems
  • Notebook Systems and I/O Power
  • Industrial Supplies
  • Automotive Systems
  • Distributed Power and POL Systems

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
ISAT,10%(A)
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
SamplesAvailability & Sample
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7447709100
SPECWE-PD SMT Power Inductor, 10 µH, 10.5 A
Simu­lation
Availability
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Downloads9 files

EDA models: Components ZIP

CAD files ZIP

Electric models ZIP

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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance10 µH
Saturation Current @ 10%10.5 A
Saturation Current @ 30%13 A
Rated Current7.1 A
Performance Rated Current9.5 A
DC Resistance21 mΩ
Self Resonant Frequency21 MHz
Size1210 
VersionStandard 
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