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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)
Packaging
Qty.
Pins
Mount
L(mm)
H(mm)
IR(A)
Working Voltage(V (AC))
Operating Temperature
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, 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-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
–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
PackagingTape and Reel 
Packaging Unit1500 
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–
Length1 mm
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–
–
Operating Temperature -55 °C up to +150 °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
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–
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–
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PackagingBag 
Packaging Unit1000 
Pins2 
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–
–
Rated Current3 A
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
–Check availability