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reference designLTC3774 | Demoboard DC2111A-A

Analog Devices LTC3774 | Demoboard DC2111A-A

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

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.

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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744301033
SPECWE-HCM SMT High Current Flat Wire Inductor, 330 nH, 325 nH
Simu­lation
Availability
–
Downloads9 files

Status Activei| Production 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 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
62000411121
SPECWR-PHD Pin Header, –, –
Simu­lation–
Availability
–
Downloads7 files

Status Activei| Production 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
–Check availability