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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
L(nH)
LR(nH)
IR(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, 470 nH, 200 nH

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
Inductance470 nH
Rated Inductance200 nH
Rated Current47.5 A
Saturation Current @ 10%35.1 A
Saturation Current @ 30%46.8 A
DC Resistance0.165 mΩ
Self Resonant Frequency22 MHz
MaterialMnZn 
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