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reference designLTC7891 | Demoboard EVAL-LTC7891-BZ

Analog Devices LTC7891 | Demoboard EVAL-LTC7891-BZ

High Frequency Step-Down Controller with 40V GaN FETs

Overview

TopologyBuck Converter
Input voltage15-36 V
Switching frequency700-900 kHz

Typical applications

  • Military avionics
  • medical systems
  • Industrial power systems, Telecommunication 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
LR(µH)
VOP(V)
RDC(mΩ)
Material
Ti
Ø OD(mm)
Ø ID(mm)
Qty.
Pins
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
Packaging
SamplesAvailability & Sample
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744309033
SPECWE-HCM SMT High Current Flat Wire Inductor, 0.33 µH, 77 A
Simu­lation
Availability
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Downloads8 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
Inductance0.33 µH
Performance Rated Current77 A
Saturation Current @ 10%59 A
Saturation Current @ 30%67 A
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Self Resonant Frequency22 MHz
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Operating Voltage80 V
DC Resistance0.165 mΩ
MaterialMnZn 
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Packaging Unit300 
Pins2 
MountSMT 
Length14 mm
Height9 mm
Rated Current47.5 A
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Operating Temperature -40 °C up to +125 °C
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–Check availability
7443630070
SPECWE-HCF SMT High Current Inductor, 0.7 µH, 54.7 A
Simu­lation
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-HCF SMT High Current Inductor
Inductance0.7 µH
Performance Rated Current54.7 A
Saturation Current @ 10%63 A
Saturation Current @ 30%75 A
DC Resistance0.91 mΩ
Self Resonant Frequency65 MHz
Wire TypeFlat 
Rated Inductance0.7 µH
Operating Voltage150 V
DC Resistance0.83 mΩ
MaterialMnZn 
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Packaging Unit100 
Pins2 
MountSMT 
Length20.8 mm
Height13.5 mm
Rated Current32 A
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Operating Temperature -40 °C up to +125 °C
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–Check availability
9774010243R
SPECWA-SMSI SMT Steel Spacer with internal Thread M2, –, –
Simu­lation–
Availability
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Downloads7 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SMSI SMT Steel Spacer with internal Thread M2
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MaterialSteel 
Inner ThreadM2 
Outer Diameter4.35 mm
Inner Diameter2.8 mm
Packaging Unit1500 
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Length1 mm
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Operating Temperature -55 °C up to +150 °C
PackagingTape and Reel 
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60800213421
SPECWR-PHD Jumper, –, –
Simu­lation–
Availability
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Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
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Packaging Unit1000 
Pins2 
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Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
PackagingBag 
–Check availability