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reference designIR3889M | Demoboard EVAL_3889

Infineon Technologies IR3889M | Demoboard EVAL_3889

User guide for IR3889 evaluation board

Overview

TopologyBuck Converter
Input voltage12 V
Switching frequency600-800 kHz
Output 13.3 V / 30 A
IC revision2.0

Features

  • Vin = +12 V
  • Vout = +3.3 V @ 0- 30 A
  • Fs=600 kHz/800 kHz
  • L= 470 nH (12.5 mm x 13 mm x 9 mm, DCR=0.165 mΩ)
  • Cin= 10 x 22 µF (25 V, ceramic 0805) + 1 x 330 µF (25 V, electrolytic, optional)
  • Cout=10 x 47 µF (6.3 V, ceramic 0805)

Typical applications

  • Telecom and Datacom Applications, Server Applications, Storage Applications
  • Distributed Point of Load Power Architectures

More information

Parts approved by Infineon Technologies

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VOP(V)
IRP,40K(A)
ISAT,10%(A)
ISAT,30%(A)
RDC(mΩ)
fres(MHz)
Material
SamplesAvailability & Sample
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744309047
SPECWE-HCM SMT High Current Flat Wire Inductor, 80 V, 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
Operating Voltage80 V
Performance Rated Current77 A
Saturation Current @ 10%43 A
Saturation Current @ 30%50 A
DC Resistance0.165 mΩ
Self Resonant Frequency12 MHz
MaterialMnZn 
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