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reference designLTC7852 | Demoboard DC2631A-A/DC2631A-B

Analog Devices LTC7852 | Demoboard DC2631A-A/DC2631A-B

High Efficiency 6-Phase Step-Down Converter

Overview

TopologyBuck Converter
Input voltage7-14 V
Switching frequency400 kHz
Output 11.5 V / 100 A
Output 21 V / 100 A

Description

Demonstration circuit 2631A features the LT C®7852 in two high output current, high efficiency step down converters each with its own assembly type. The converter for the -A assembly provides two 3-phase outputs of 1.0V/100A and 1.5V/100A.

Features

  • Sub-Milliohm DCR Sensing or DrMOS with CurrentSense Improves Efficiency
  • Operates with Power Blocks, DrMOS or External Gate Drivers and MOSFETs
  • ±0.5% Total Output Voltage Accuracy
  • Flexible Phase Configuration
  • Dual Output Current Monitoring
  • tON(MIN) = 40ns, Capable of Very Low Duty Cycles atHigh Frequency
  • Dual Differential Remote Sensing Amplifiers
  • Programmable Frequency Range of 250kHz to 1.2MHz
  • VIN Range Is Not Limited by IC
  • VCC Range: 4.5V to 5.5V
  • VOUT Range: 0.5V to 2.0V
  • 48 Lead (5mm × 6mm) GQFN for LTC7852
  • 36 Lead (4mm × 5mm) QFN for LTC7852-1

Typical applications

  • Computer Systems
  • DC Power Distribution Systems
  • Telecom and Datacom Systems

More information

Parts approved by Analog Devices

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Data­sheet
Simu­lation
Downloads
Status
Product series
VOP(V)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
SamplesAvailability & Sample
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744301025
SPECWE-HCM SMT High Current Flat Wire Inductor, 80 V, 56 A
Simu­lation
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCM SMT High Current Flat Wire Inductor
Operating Voltage80 V
Performance Rated Current56 A
Saturation Current @ 10%70 A
Saturation Current @ 30%76 A
DC Resistance0.3 mΩ
Self Resonant Frequency29 MHz
MaterialMnZn 
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