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reference designLTC3774 | Demoboard DC2111A-B

Analog Devices LTC3774 | Demoboard DC2111A-B

LTC3774EUHE 4-Phase High Current Step-Down Converter with Very Low DCR Induct

Overview

TopologyBuck Converter
Input voltage10-14 V
Output 11.2 V / 90 A
IC revisionA

Description

Demonstration circuit DC2111A features the LTC®3774 ina 4-phase, high output current step-down converter withsub-mΩ DCR sensing. This high performance converteroperates at a switching frequency of 400kHz over an inputvoltage range of 10V to 14V. The 5mm × 5mm DrMOSand 0.33µH/0.325mΩ inductor provide high efficiencywhile supplying 30A per phase. The board comes in twoassembly types. The –A assembly provides a 1.2V/90Aconverter with N+1 MOSFET failure protection and the –Bassembly provides a high efficiency 1.2V/120A converter.

Features

Remote sensing

  • CLKIN and CLKOUT pins
  • PGOOD, RUN and TRACK/SS pins
  • Dynamic load circuit
  • Optional phase shedding circuit

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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744301033
SPECWE-HCM SMT High Current Flat Wire Inductor, 330 nH, 325 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
Inductance330 nH
Rated Inductance325 nH
Saturation Current @ 10%44.9 A
Saturation Current @ 30%48.9 A
DC Resistance0.32 mΩ
Self Resonant Frequency28 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
62000411121
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
–
–
–
–
–
–
–
Pins4 
TypeStraight 
MountTHT 
Length8 mm
–
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
–Check availability