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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 V / 200 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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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(nH)
LR(nH)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
Pins
Type
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
Packaging
SamplesAvailability & Sample
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744301025
SPECWE-HCM SMT High Current Flat Wire Inductor, 250 nH, 250 nH

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
–
Downloads9 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
Inductance250 nH
Rated Inductance250 nH
Saturation Current @ 10%54.4 A
Saturation Current @ 30%64.7 A
DC Resistance0.32 mΩ
Self Resonant Frequency33 MHz
MaterialMnZn 
Pins2 
–
MountSMT 
Length11.3 mm
Height8.9 mm
Rated Current38 A
–
Operating Temperature -40 °C up to +125 °C
–
–Check availability
60800213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
–
Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
–
–
–
–
–
–
–
Pins2 
–
–
–
–
Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
PackagingBag 
–Check availability
62000311121
SPECWR-PHD Pin Header, –, –
Simu­lation–
Availability
–
Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
–
–
–
–
–
–
–
Pins3 
TypeStraight 
MountTHT 
Length6 mm
–
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability