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reference designLT8647 | Demoboard EVAL-LT8647-AZ

Analog Devices LT8647 | Demoboard EVAL-LT8647-AZ

65V, 7A (8A Peak) Synchronous Step-Down Silent Switcher with 2.5μA Quiescent Current

Overview

TopologyBuck Converter
Input voltage5.6-65 V
Switching frequency200-2200 kHz
Output 15.15 V / 7 A

Typical applications

  • Industrial Supplies; General Purpose Step-Down

More information

Parts approved by Analog Devices

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
f(mm)
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR(mA)
Z @ 1 GHz(Ω)
H(mm)
Type
Pins
Mount
L(mm)
Working Voltage(V (AC))
Operating Temperature
Packaging
SamplesAvailability & Sample
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74279226101
SPECWE-MPSB EMI Multilayer Power Suppression Bead, –, 100 Ω
Simu­lation
Availability
–
Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-MPSB EMI Multilayer Power Suppression Bead
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Impedance @ 100 MHz100 Ω
Maximum Impedance160 Ω
Maximum Impedance1100 MHz 
Rated Current8000 mA
Impedance @ 1 GHz150 Ω
Height2.3 mm
TypeHigh Current 
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MountSMT 
Length4.5 mm
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Operating Temperature -55 °C up to +125 °C
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–Check availability
702935000
SPECWA-SNSR Self-Retaining Spacer, 4.8 mm, –
Simu­lation–
Availability
–
Downloads3 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWA-SNSR Self-Retaining Spacer
Drilling in Panel4.8 mm
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–
–
–
–
–
–
–
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Length12.7 mm
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Operating Temperature -30 °C up to +85 °C
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–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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Rated Current3000 mA
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–
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Pins2 
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Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
PackagingBag 
–Check availability
62000821121
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
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Rated Current2000 mA
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TypeStraight 
Pins8 
MountTHT 
Length8 mm
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
PackagingBag 
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Additional parts recommended by Würth Elektronik

Recommended parts are Würth Elektronik alternatives that are not formally approved for this reference design. Please verify it is suitable for your application, and contact us if you have any questions.

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
IRP,40K(A)
ISAT,30%(A)
RDC typ.(mΩ)
RDC max.(mΩ)
fres(MHz)
Mount
SamplesAvailability & Sample
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744393445010
SPECWE-XHMI SMT Power Inductor, 1 µH, 25.1 A
Simu­lation
Availability
–
Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-XHMI SMT Power Inductor
Inductance1 µH
Performance Rated Current25.1 A
Saturation Current @ 30%21.4 A
DC Resistance4.2 mΩ
DC Resistance4.9 mΩ
Self Resonant Frequency48 MHz
MountSMT 
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