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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

Products

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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
SamplesAvailability & Sample
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744301025
SPECWE-HCM SMT High Current Flat Wire Inductor, 250 nH, 250 nH
Simu­lation
Availability
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Downloads9 files

Status Activei| Production 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 Activei| Production 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
–Check availability
62000311121
SPECWR-PHD Pin Header, –, –
Simu­lation–
Availability
–
Downloads7 files

Status Activei| Production 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
–Check availability