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reference designBT2747 | Demoboard BTDB583A

Backward BT2747 | Demoboard BTDB583A

BTC1832 23VIN, 2A high efficiency step-down switching power supply

Overview

TopologyFlyback Converter
Input voltage4-12 V
Output 112 V
IC revision00

Features

  • 4V to 55V input voltage range
  • Built-in 2A 70V power switch
  • 238kHz switching frequency (optional 140kHz)
  • No third winding, optocoupler
  • Static working current 5mA
  • Sleep current 20μA
  • Built-in function selection mode
  • Synchronizable frequency range 300kHz-600kHz
  • 2 external resistors set VOUT
  • Primary voltage sampling setting VOUT
  • Package form: esop-8L

Typical applications

  • Isolated power supplies and boost power supplies for industrial, medical, and automation applications

More information

Parts approved by Backward

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VIN
VOut1(V)
IOut1(A)
Vaux(V)
L(µH)
n
ISAT(A)
LS(µH)
VT(V (AC))
Size
IC Reference
SamplesAvailability & Sample
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750311423
SPECWE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748, 36 V (DC), 5 V
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-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748
Input Voltage 36 V (DC)
Output Voltage 15 V
Output Current 14 A
Auxiliary Voltage10 V
Inductance50 µH
Turns Ratio4:1:2 
Saturation Current3.85 A
Leakage Inductance1.2 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
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