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reference designMPQ8636GLE-4

Monolithic Power Systems MPQ8636GLE-4

High Efficiency, 4/10/20A, 18V Synchronous, Step-Down Converter

Overview

TopologyBuck Converter
Input voltage4.5-18 V
Switching frequency200-1000 kHz
Output 113 V / 4 A
IC revision1.31

Description

The MPQ8636 is a fully-integrated, highfrequency, synchronous, rectified, step-down, switch-mode converter. It offers a very compact solution to achieve 4A/10A/20A output current over a wide input supply range, with excellent load and line regulation. The MPQ8636 operates at high efficiency over a wide output-current–load range. The MPQ8636 uses Constant-On-Time (COT) control to provide a fast transient response and ease loop stabilization. An external resistor programs the operating frequency from 200kHz to 1MHz, and the frequency keeps nearly constant as input supply varies with the feed-forward compensation.

Features

 Wide 4.5V-to-18V Operating Input Range

  • 4A/10A/20A Output Current
  • Optimal Low RDS(ON) Internal PowerMOSFETs Per Device
  • Proprietary Switching-Loss–ReductionTechnique
  • Adaptive COT for Ultrafast TransientResponse
  • 0.5% Reference Voltage Over 0°C to 70°CJunction Temperature Range
  • Programmable Soft-Start Time
  • Pre-Bias Start-Up
  • Programmable Switching Frequency from200kHz to 1MHz
  • Non-Latch OCP, OVP, and ThermalShutdown
  • Output Adjustable from 0.611V to 13V

Typical applications

  • Base Stations
  • Distributed Power Systems
  • Flat-Panel Televisions and Monitors
  • Servers
  • Personal Video Recorders
  • Telecom and Networking Systems

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Qty.
SamplesAvailability & Sample
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744325072
SPECWE-HCI SMT Flat Wire High Current Inductor, 0.72 µH, 37.8 A
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Availability
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-HCI SMT Flat Wire High Current Inductor
Inductance0.72 µH
Performance Rated Current37.8 A
Saturation Current @ 10%14 A
Saturation Current @ 30%35 A
DC Resistance1.3 mΩ
Self Resonant Frequency115 MHz
MaterialSuperflux 
Packaging Unit700 
–Check availability
744325180
SPECWE-HCI SMT Flat Wire High Current Inductor, 1.8 µH, 22.1 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
Inductance1.8 µH
Performance Rated Current22.1 A
Saturation Current @ 10%7 A
Saturation Current @ 30%18 A
DC Resistance3.5 mΩ
Self Resonant Frequency70 MHz
MaterialSuperflux 
Packaging Unit700 
–Check availability