WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748

WE-FB Flyback Transformer suitable for LT3573/ LT3574/ LT3575/ LT3748
SizeDimen­sions3DL
(mm)
W
(mm)
H
(mm)
EP5
6.6 8.26 5.59
EP7
- - -
EP10
13.34 15.24 11.43
EP13
- - 12.7
ER9.5
10.41 12.95 5.97
EE16/8/5
20.32 24.38 16
EE20/10/6
22.2 25 16
EFD20
23.11 29.08 11.43
EFD25
27.03 32.31 13.69

Characteristics

  • Easy design-in solution
  • Less external components needed
  • Small board space
  • Low cost
  • No optocoupler needed!
  • Long term reliability voltage control
  • No aging
  • Same external parts for different output voltages
  • Easy design of custom power supply due to standard circuit and change of transformers and two components for feedback loop
  • Isolation voltage up to 2.5 kV

Applications

  • Isolated power design
  • Sensor interfaces
  • Isolated telecom converters
  • Power over Ethernet

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Products

All
EP5
EP7
EP10
EP13
ER9.5
EE16/8/5
EE20/10/6
EFD20
EFD25
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Order Code
Data­sheet
Simu­lation
Downloads
Status
VIN
VOut1(V)
IOut1(A)
VOut2(V)
IOut2(A)
VOut3(V)
IOut3(A)
VOut4(V)
IOut4(A)
Vaux(V)
L(µH)
n
ISAT(A)
LS(µH)
VT(V (AC))
Size
IC Reference
Samples
750370042
5 V (DC), 5 V, 0.1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 5 V (DC)
Output Voltage 15 V
Output Current 10.1 A
Output Voltage 25 V
Output Current 20.1 A
Auxiliary Voltage5 V
Inductance15 µH
Turns Ratio1:1:1:1 
Saturation Current1.5 A
Leakage Inductance0.6 µH
Insulation Test Voltage1500 V (AC)
SizeER9.5 
IC ReferenceLT3573 
750311691
8 - 15 V (DC), 150 V, 0.001 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 8 - 15 V (DC)
Output Voltage 1150 V
Output Current 10.001 A
Inductance60 µH
Turns Ratio1:5 
Saturation Current0.25 A
Leakage Inductance1 µH
Insulation Test Voltage1500 V (AC)
SizeEP5 
IC ReferenceLT3748 
750311692
8 - 15 V (DC), 150 V, 0.001 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 8 - 15 V (DC)
Output Voltage 1150 V
Output Current 10.001 A
Output Voltage 2-150 V
Output Current 20.001 A
Inductance80 µH
Turns Ratio1:5:5 
Saturation Current1 A
Leakage Inductance2 µH
Insulation Test Voltage1500 V (AC)
SizeEP7 
IC ReferenceLT3748 
750311856
8 - 24 V (DC), 15 V, 0.15 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 8 - 24 V (DC)
Output Voltage 115 V
Output Current 10.15 A
Output Voltage 215 V
Output Current 20.15 A
Output Voltage 315 V
Output Current 30.15 A
Output Voltage 415 V
Output Current 40.15 A
Inductance3.8 µH
Turns Ratio1:1:4:4:4:4 
Saturation Current12 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311911
8 - 24 V (DC), 15 V, 0.2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 8 - 24 V (DC)
Output Voltage 115 V
Output Current 10.2 A
Output Voltage 215 V
Output Current 20.2 A
Output Voltage 315 V
Output Current 30.2 A
Output Voltage 415 V
Output Current 40.2 A
Auxiliary Voltage5 V
Inductance6.78 µH
Turns Ratio1:3:3:3:3:1 
Saturation Current13 A
Leakage Inductance0.2 µH
Insulation Test Voltage1500 V (AC)
SizeEE20/10/6 
IC ReferenceLT3748 
750310471
9 - 30 V (DC), 5 V, 2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 9 - 30 V (DC)
Output Voltage 15 V
Output Current 12 A
Auxiliary Voltage5 V
Inductance25 µH
Turns Ratio3:1:1 
Saturation Current2.6 A
Leakage Inductance0.43 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3573 & LT3575 
750311675
9 - 30 V (DC), 5 V, 2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 9 - 30 V (DC)
Output Voltage 15 V
Output Current 12 A
Auxiliary Voltage5 V
Inductance25 µH
Turns Ratio3:1:1 
Saturation Current2.5 A
Leakage Inductance0.25 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3573 & LT3575 & LT3748 
750311306
9 - 36 V (DC), 12 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 9 - 36 V (DC)
Output Voltage 112 V
Output Current 11 A
Auxiliary Voltage8 V
Inductance100 µH
Turns Ratio3:1:0.667 
Saturation Current1.65 A
Leakage Inductance3 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3575 
750311308
9 - 36 V (DC), 24 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 9 - 36 V (DC)
Output Voltage 124 V
Output Current 10.5 A
Auxiliary Voltage8 V
Inductance100 µH
Turns Ratio1:1:0.333 
Saturation Current2.1 A
Leakage Inductance3 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3574 & LT3575 
750310617
9 - 36 V (DC), 12 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 9 - 36 V (DC)
Output Voltage 112 V
Output Current 13 A
Auxiliary Voltage12 V
Inductance4.5 µH
Turns Ratio1:1.16:1.16 
Saturation Current14 A
Leakage Inductance0.15 µH
Insulation Test Voltage1875 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750370059
10 - 30 V (DC), 5 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 30 V (DC)
Output Voltage 15 V
Output Current 11 A
Auxiliary Voltage5 V
Inductance50 µH
Turns Ratio3:1:1 
Saturation Current1.6 A
Leakage Inductance1 µH
Insulation Test Voltage1500 V (AC)
SizeEP7 
IC ReferenceLT3573 
750370041
10 - 30 V (DC), 5 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 30 V (DC)
Output Voltage 15 V
Output Current 11 A
Auxiliary Voltage5 V
Inductance50 µH
Turns Ratio3:1:1 
Saturation Current1.6 A
Leakage Inductance1 µH
Insulation Test Voltage1500 V (AC)
SizeEP7 
IC ReferenceLT3574 & LT3573 
750370040
10 - 30 V (DC), 5 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 30 V (DC)
Output Voltage 15 V
Output Current 11 A
Auxiliary Voltage5 V
Inductance30 µH
Turns Ratio3:1:1 
Saturation Current1.7 A
Leakage Inductance1 µH
Insulation Test Voltage1500 V (AC)
SizeEP7 
IC ReferenceLT3574 & LT3573 
750370047
10 - 30 V (DC), 5 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 30 V (DC)
Output Voltage 15 V
Output Current 11 A
Auxiliary Voltage5 V
Inductance30 µH
Turns Ratio3:1:1 
Saturation Current1.7 A
Leakage Inductance1 µH
Insulation Test Voltage1500 V (AC)
SizeEP7 
IC ReferenceLT3574 & LT3573 
750370058
10 - 30 V (DC), 15 V, 0.4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 30 V (DC)
Output Voltage 115 V
Output Current 10.4 A
Auxiliary Voltage5 V
Inductance25 µH
Turns Ratio1:1:0.33 
Saturation Current2 A
Leakage Inductance0.3 µH
Insulation Test Voltage1500 V (AC)
SizeEP7 
IC ReferenceLT3573 
750310799
10 - 30 V (DC), 15 V, 0.4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 30 V (DC)
Output Voltage 115 V
Output Current 10.4 A
Auxiliary Voltage5 V
Inductance25 µH
Turns Ratio1:1:0.33 
Saturation Current2 A
Leakage Inductance0.125 µH
Insulation Test Voltage1500 V (AC)
SizeEP7 
IC ReferenceLT3573 
750311567
10 - 40 V (DC), 5 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 40 V (DC)
Output Voltage 15 V
Output Current 13 A
Auxiliary Voltage10 V
Inductance7 µH
Turns Ratio2:1:2 
Saturation Current11.2 A
Leakage Inductance0.8 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3575 & LT3748 
750311625
10 - 40 V (DC), 3.3 V, 4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 40 V (DC)
Output Voltage 13.3 V
Output Current 14 A
Auxiliary Voltage8 V
Inductance9 µH
Turns Ratio4:1:2.2 
Saturation Current8 A
Leakage Inductance0.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311564
10 - 40 V (DC), 5 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 40 V (DC)
Output Voltage 15 V
Output Current 13 A
Auxiliary Voltage8 V
Inductance9.07 µH
Turns Ratio3:1:1.75 
Saturation Current8 A
Leakage Inductance0.25 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311624
10 - 40 V (DC), 15 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 10 - 40 V (DC)
Output Voltage 115 V
Output Current 11 A
Auxiliary Voltage8 V
Inductance9 µH
Turns Ratio1.5:1:0.5 
Saturation Current8 A
Leakage Inductance0.25 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750310559
12 - 30 V (DC), 3.3 V, 1.3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 12 - 30 V (DC)
Output Voltage 13.3 V
Output Current 11.3 A
Auxiliary Voltage5 V
Inductance24 µH
Turns Ratio4:1:1 
Saturation Current2.1 A
Leakage Inductance0.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3573 & LT3575 
750310564
12 - 30 V (DC), 5 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 12 - 30 V (DC)
Output Voltage 15 V
Output Current 11 A
Output Voltage 2-5 V
Output Current 21 A
Auxiliary Voltage5 V
Inductance63 µH
Turns Ratio3:1:1:1 
Saturation Current1.45 A
Leakage Inductance0.6 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3574 & LT3573 & LT3575 
750311486
12 V (DC), 200 V, 0.002 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 12 V (DC)
Output Voltage 1200 V
Output Current 10.002 A
Output Voltage 2-200 V
Output Current 20.002 A
Auxiliary Voltage4 V
Inductance100 µH
Turns Ratio1:10:10:0.219 
Saturation Current2 A
Leakage Inductance4.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3748 
750311681
12 V (DC), 200 V, 0.002 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 12 V (DC)
Output Voltage 1200 V
Output Current 10.002 A
Output Voltage 2-200 V
Output Current 20.002 A
Inductance100 µH
Turns Ratio1:10:10 
Saturation Current2 A
Leakage Inductance3 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3748 
750310988
12 V (DC), 48 V, 0.85 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 12 V (DC)
Output Voltage 148 V
Output Current 10.85 A
Inductance14 µH
Turns Ratio1:4.42 
Saturation Current15 A
Leakage Inductance0.2 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750310562
18 - 30 V (DC), 12 V, 0.8 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 18 - 30 V (DC)
Output Voltage 112 V
Output Current 10.8 A
Auxiliary Voltage12 V
Inductance25 µH
Turns Ratio2:1:1 
Saturation Current2.8 A
Leakage Inductance0.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3573 & LT3575 
750310563
18 - 30 V (DC), 12 V, 0.8 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 18 - 30 V (DC)
Output Voltage 112 V
Output Current 10.8 A
Auxiliary Voltage6 V
Inductance25 µH
Turns Ratio1:1:0.5 
Saturation Current2.8 A
Leakage Inductance0.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3573 & LT3575 
750311797
18 - 100 V (DC), 12 V, 2.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 18 - 100 V (DC)
Output Voltage 112 V
Output Current 12.5 A
Auxiliary Voltage12 V
Inductance14 µH
Turns Ratio2.5:1:1 
Saturation Current11.5 A
Leakage Inductance0.21 µH
Insulation Test Voltage4000 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311385
18 - 60 V (DC), 13 V, 2.3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 18 - 60 V (DC)
Output Voltage 113 V
Output Current 12.3 A
Auxiliary Voltage14 V
Inductance15 µH
Turns Ratio1.25:1:1.1 
Saturation Current6.75 A
Leakage Inductance0.2 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311783
19 - 70 V (DC), 24 V, 2.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 19 - 70 V (DC)
Output Voltage 124 V
Output Current 12.5 A
Auxiliary Voltage12 V
Inductance20 µH
Turns Ratio1.5:1:0.5 
Saturation Current16 A
Leakage Inductance0.225 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311597
20 - 48 V (DC), 5 V, 6 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 20 - 48 V (DC)
Output Voltage 15 V
Output Current 16 A
Auxiliary Voltage10 V
Inductance6 µH
Turns Ratio3:1:2 
Saturation Current9.5 A
Leakage Inductance0.3 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311598
20 - 48 V (DC), 12 V, 2.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 20 - 48 V (DC)
Output Voltage 112 V
Output Current 12.5 A
Auxiliary Voltage10 V
Inductance8.3 µH
Turns Ratio2:1:0.8 
Saturation Current9 A
Leakage Inductance0.3 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311599
20 - 48 V (DC), 15 V, 2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 20 - 48 V (DC)
Output Voltage 115 V
Output Current 12 A
Auxiliary Voltage10 V
Inductance8 µH
Turns Ratio1.5:1:0.67 
Saturation Current12 A
Leakage Inductance1 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311604
20 - 48 V (DC), 24 V, 1.3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 20 - 48 V (DC)
Output Voltage 124 V
Output Current 11.3 A
Auxiliary Voltage10 V
Inductance8 µH
Turns Ratio1:1:0.42 
Saturation Current9.5 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311589
20 - 48 V (DC), 5 V, 9 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 20 - 48 V (DC)
Output Voltage 15 V
Output Current 19 A
Auxiliary Voltage10 V
Inductance6 µH
Turns Ratio3:1:2 
Saturation Current18 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311591
20 - 48 V (DC), 15 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 20 - 48 V (DC)
Output Voltage 115 V
Output Current 13 A
Auxiliary Voltage10 V
Inductance8 µH
Turns Ratio1.5:1:0.67 
Saturation Current20 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311590
20 - 48 V (DC), 12 V, 3.8 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 20 - 48 V (DC)
Output Voltage 112 V
Output Current 13.8 A
Auxiliary Voltage10 V
Inductance8 µH
Turns Ratio2:1:1 
Saturation Current18 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311592
20 - 48 V (DC), 24 V, 1.9 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 20 - 48 V (DC)
Output Voltage 124 V
Output Current 11.9 A
Auxiliary Voltage10 V
Inductance8 µH
Turns Ratio1:1:0.44 
Saturation Current18 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311889
28 V (DC), 250 V, 0.1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 28 V (DC)
Output Voltage 1250 V
Output Current 10.1 A
Inductance37 µH
Turns Ratio1:2.5:2.5 
Saturation Current2.95 A
Leakage Inductance0.16 µH
Insulation Test Voltage500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311605
30 - 75 V (DC), 5 V, 6 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 30 - 75 V (DC)
Output Voltage 15 V
Output Current 16 A
Auxiliary Voltage10 V
Inductance15 µH
Turns Ratio3.5:1:2 
Saturation Current9.5 A
Leakage Inductance0.55 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311607
30 - 75 V (DC), 12 V, 2.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 30 - 75 V (DC)
Output Voltage 112 V
Output Current 12.5 A
Auxiliary Voltage10 V
Inductance14 µH
Turns Ratio2.5:1:0.83 
Saturation Current9.5 A
Leakage Inductance0.5 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311600
30 - 75 V (DC), 15 V, 2 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 30 - 75 V (DC)
Output Voltage 115 V
Output Current 12 A
Auxiliary Voltage10 V
Inductance12 µH
Turns Ratio2:1:0.67 
Saturation Current11 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311608
30 - 75 V (DC), 24 V, 1.3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 30 - 75 V (DC)
Output Voltage 124 V
Output Current 11.3 A
Auxiliary Voltage10 V
Inductance12 µH
Turns Ratio1.5:1:0.5 
Saturation Current9 A
Leakage Inductance1 µH
Insulation Test Voltage1500 V (AC)
SizeEFD20 
IC ReferenceLT3748 
750311593
30 - 75 V (DC), 5 V, 9 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 30 - 75 V (DC)
Output Voltage 15 V
Output Current 19 A
Auxiliary Voltage10 V
Inductance15 µH
Turns Ratio3.5:1:2 
Saturation Current18 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311595
30 - 75 V (DC), 15 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 30 - 75 V (DC)
Output Voltage 115 V
Output Current 13 A
Auxiliary Voltage10 V
Inductance12 µH
Turns Ratio2:1:0.8 
Saturation Current16 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311594
30 - 75 V (DC), 12 V, 3.8 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 30 - 75 V (DC)
Output Voltage 112 V
Output Current 13.8 A
Auxiliary Voltage10 V
Inductance15 µH
Turns Ratio2.33:1:0.83 
Saturation Current18 A
Leakage Inductance0.55 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311596
30 - 75 V (DC), 24 V, 1.9 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 30 - 75 V (DC)
Output Voltage 124 V
Output Current 11.9 A
Auxiliary Voltage10 V
Inductance12 µH
Turns Ratio1.5:1:0.5 
Saturation Current18 A
Leakage Inductance0.4 µH
Insulation Test Voltage1500 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750311305
36 V (DC), 12 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 112 V
Output Current 11 A
Auxiliary Voltage8 V
Inductance50 µH
Turns Ratio3:1:0.67 
Saturation Current2.8 A
Leakage Inductance2 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3575 
750311307
36 V (DC), 24 V, 0.5 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 124 V
Output Current 10.5 A
Auxiliary Voltage8 V
Inductance100 µH
Turns Ratio2:1:0.33 
Saturation Current1.9 A
Leakage Inductance3 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3574 & LT3575 
750311303
36 V (DC), 5 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 15 V
Output Current 13 A
Auxiliary Voltage10 V
Inductance50 µH
Turns Ratio5:1:2 
Saturation Current2.25 A
Leakage Inductance1.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3575 
750311304
36 V (DC), 5 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 15 V
Output Current 13 A
Auxiliary Voltage10 V
Inductance50 µH
Turns Ratio4:1:1.5 
Saturation Current2.4 A
Leakage Inductance1.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3574 & LT3575 
750311342
36 V (DC), 5 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 15 V
Output Current 13 A
Auxiliary Voltage10 V
Inductance15 µH
Turns Ratio2:1:2 
Saturation Current5.8 A
Leakage Inductance0.65 µH
Insulation Test Voltage1500 V (AC)
SizeEP10 
IC ReferenceLT3575 
750311424
36 V (DC), 12 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 112 V
Output Current 11 A
Auxiliary Voltage8 V
Inductance100 µH
Turns Ratio3:1:0.667 
Saturation Current2.4 A
Leakage Inductance1.5 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3748 
750311456
36 V (DC), 12 V, 1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 112 V
Output Current 11 A
Auxiliary Voltage8 V
Inductance100 µH
Turns Ratio3:1:0.667 
Saturation Current2.4 A
Leakage Inductance1.5 µH
Insulation Test Voltage2500 V (AC)
SizeEP13 
IC ReferenceLT3748 
750311458
36 V (DC), 3.3 V, 4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 13.3 V
Output Current 14 A
Auxiliary Voltage8 V
Inductance15 µH
Turns Ratio3:1:2.5 
Saturation Current5 A
Leakage Inductance0.3 µH
Insulation Test Voltage2500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311422
36 V (DC), 5 V, 4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 15 V
Output Current 14 A
Auxiliary Voltage10 V
Inductance50 µH
Turns Ratio5:1:2 
Saturation Current3.3 A
Leakage Inductance1.2 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311423
36 V (DC), 5 V, 4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
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 
750311457
36 V (DC), 5 V, 4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 15 V
Output Current 14 A
Auxiliary Voltage10 V
Inductance50 µH
Turns Ratio4:1:2 
Saturation Current3.7 A
Leakage Inductance1.2 µH
Insulation Test Voltage2500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311688
36 V (DC), 5 V, 4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 15 V
Output Current 14 A
Auxiliary Voltage10 V
Inductance50 µH
Turns Ratio5:1:2 
Saturation Current3.1 A
Leakage Inductance1.2 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311689
36 V (DC), 5 V, 4 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 36 V (DC)
Output Voltage 15 V
Output Current 14 A
Auxiliary Voltage10 V
Inductance50 µH
Turns Ratio4:1:2 
Saturation Current3.7 A
Leakage Inductance1.2 µH
Insulation Test Voltage2500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311439
37 - 57 V (DC), 12 V, 2.1 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 37 - 57 V (DC)
Output Voltage 112 V
Output Current 12.1 A
Auxiliary Voltage12 V
Inductance37 µH
Turns Ratio2:1:1.1 
Saturation Current2.8 A
Leakage Inductance0.75 µH
Insulation Test Voltage1500 V (AC)
SizeEP13 
IC ReferenceLT3575 & LT3748 
750311771
100 - 400 V (DC), 15 V, 3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 100 - 400 V (DC)
Output Voltage 115 V
Output Current 13 A
Auxiliary Voltage15 V
Inductance500 µH
Turns Ratio3:3:1:1 
Saturation Current2.5 A
Leakage Inductance10 µH
Insulation Test Voltage2000 V (AC)
SizeEFD25 
IC ReferenceLT3748 
750811048
120 - 375 V (DC), 30 V, 0.3 A
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Input Voltage 120 - 375 V (DC)
Output Voltage 130 V
Output Current 10.3 A
Auxiliary Voltage15 V
Inductance1500 µH
Turns Ratio4.53:1:0.5 
Saturation Current0.65 A
Leakage Inductance35 µH
Insulation Test Voltage4500 V (AC)
SizeEE16/8/5 
IC ReferenceLT3748 

Comments

  • Dependant on application, the transformer specification can slightly differ to data sheet.
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