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reference designMPQ3426

Monolithic Power Systems MPQ3426

6A, 35V Boost Converter with Programmable Switching Frequency and UVLO AEC-Q100 Qualified

Overview

TopologyBoost Converter
Input voltage8-22 V
Switching frequency300-2000 kHz
Output 124 V / 1 A
IC revision1.0

Description

The MPQ3426 is a current-mode step-up converter with a 6A, 90mΩ internal switch that provides a highly efficient regulator with a fast response. The MPQ3426 features a programmable frequency of up to 2MHz thatallows for easy filtering and reduces noise. An external compensation pin gives the user flexibility in setting loop dynamics, and usessmall, low-ESR, ceramic output capacitors. Soft-start results in a small inrush current and can be programmed with an external capacitor.The MPQ3426 operates from an input voltage as low as 3.2V and can generate up to a 35V output.The MPQ3426’s features include under-voltage lockout, current limiting, and thermal overload protection. The MPQ3426 is available in a lowprofile14-pin 3mm×4mm QFN package with an exposed pad.

Features

FEATURES

  • Guaranteed Industrial/Automotive Temp.Range Limits
  • 6A, 90mΩ, 45V Power MOSFET
  • Uses Very Small Capacitors and Inductors
  • Wide Input Range: 3.2V to 22V
  • Output Voltage as High as 35V
  • Programmable fsw: 300kHz to 2MHz
  • Programmable UVLO, Soft-Start, UVLOHysteresis
  • Micropower Shutdown <1μA
  • Thermal Shutdown 160°C
  • Available in 14-Pin 3mm×4mm QFNPackage
  • Available in AEC-Q100 Qualified Grade

Typical applications

  • Automotive
  • Telecom—Power Supplies
  • Audio—Microphone and Tuner Bias

More information

Products

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Order Code
Data­sheet
Simu­lation
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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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744770115
SPECWE-PD SMT Power Inductor, 15 µH, 6 A
Simu­lation
Availability
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance15 µH
Saturation Current @ 10%6 A
Saturation Current @ 30%7.8 A
Rated Current5.8 A
Performance Rated Current7.4 A
DC Resistance23 mΩ
Self Resonant Frequency14.5 MHz
Size1280 
VersionStandard 
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