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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(nH)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC max.(mΩ)
fres(MHz)
Wire Type
LR(nH)
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, 330 nH, 76.6 A

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
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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
Performance Rated Current76.6 A
Saturation Current @ 10%58 A
Saturation Current @ 30%65.7 A
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Self Resonant Frequency28 MHz
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Rated Inductance310 nH
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, 700 nH, 54.7 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
Inductance700 nH
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 Inductance700 nH
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
–
–Check availability
9774010243R
SPECWA-SMSI SMT Steel Spacer with internal Thread M2, –, –
Simu­lation–
Availability
–
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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–
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Operating Temperature -55 °C up to +150 °C
PackagingTape and Reel 
–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
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–
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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