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reference designLTC3871 | Demoboard EV-DPS-PWRBD4Z

Analog Devices LTC3871 | Demoboard EV-DPS-PWRBD4Z

20A LTC3871 Power boards

Overview

TopologyBuck Converter
Input voltage12-24 V
Output 1-5.5 V / 20 A
Output 29 V / 20 A

Typical applications

  • 48V/12V Dual Battery Systems
  • Backup Power Systems

More information

Parts approved by Analog Devices

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Wire Type
C
VR(V (DC))
Endurance(h)
IRIPPLE(mA)
RESR(mΩ)
ILeak(µA)
DF(%)
Ø D(mm)
L(mm)
Packaging
Pins
Type
Mount
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
SamplesAvailability & Sample
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7443640150B
SPECWE-HCF SMT High Current Inductor, 1.5 µH, 86.2 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN 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-HCF SMT High Current Inductor
Inductance1.5 µH
Performance Rated Current86.2 A
Saturation Current @ 10%85 A
Saturation Current @ 30%91.8 A
DC Resistance0.48 mΩ
Self Resonant Frequency37.6 MHz
Wire TypeFlat 
–
–
–
–
–
–
–
–
Length27 mm
–
–
–
MountSMT 
Height18.5 mm
Rated Current86.2 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
74436410220
SPECWE-HCF SMT High Current Inductor, 2.2 µH, 44 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN 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-HCF SMT High Current Inductor
Inductance2.2 µH
Performance Rated Current44 A
Saturation Current @ 10%85 A
Saturation Current @ 30%88.5 A
DC Resistance1.44 mΩ
Self Resonant Frequency32.8 MHz
Wire TypeFlat 
–
–
–
–
–
–
–
–
Length27 mm
–
Pins2 
–
MountSMT 
Height15.4 mm
Rated Current44 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
7443640680B
SPECWE-HCF SMT High Current Inductor, 6.8 µH, 59.2 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN 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-HCF SMT High Current Inductor
Inductance6.8 µH
Performance Rated Current59.2 A
Saturation Current @ 10%31.9 A
Saturation Current @ 30%36.3 A
DC Resistance0.97 mΩ
Self Resonant Frequency18.8 MHz
Wire TypeFlat 
–
–
–
–
–
–
–
–
Length27 mm
–
–
–
MountSMT 
Height18.5 mm
Rated Current59.2 A
–
Operating Temperature -40 °C up to +125 °C
–Check availability
875075355002
SPECWCAP-PSLC Aluminum Polymer Capacitors, –, –
Simu­lation
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-PSLC Aluminum Polymer Capacitors
–
–
–
–
–
–
–
Capacitance220 µF
Rated Voltage16 V (DC)
Endurance 2000
Ripple Current4700 mA
ESR10 mΩ
Leakage Current704 µA
Dissipation Factor8 %
Diameter8 mm
Length11.7 mm
Packaging15" Tape & Reel 
–
–
MountV-Chip SMT 
–
–
–
Operating Temperature -55 °C up to +105 °C
–Check availability
875075555003
SPECWCAP-PSLC Aluminum Polymer Capacitors, –, –
Simu­lation
Availability
–
Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-PSLC Aluminum Polymer Capacitors
–
–
–
–
–
–
–
Capacitance68 µF
Rated Voltage25 V (DC)
Endurance 2000
Ripple Current4210 mA
ESR15 mΩ
Leakage Current340 µA
Dissipation Factor8 %
Diameter8 mm
Length11.7 mm
Packaging15" Tape & Reel 
–
–
MountV-Chip SMT 
–
–
–
Operating Temperature -55 °C up to +105 °C
–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
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Length6 mm
PackagingBag 
Pins3 
TypeStraight 
MountTHT 
–
Rated Current2 A
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
–Check availability