Datasheet

24
LTC1698
1698f
 LINEAR TECHNOLOGY CORPORATION 2000
LT/TP 0203 2K • PRINTED IN THE USA
PART NUMBER DESCRIPTION COMMENTS
LT1339 High Power Synchronous DC/DC Controller Operation Up to 60V Maximum
LT1425 Isolated Flyback Switching Regulator General Purpose with External Application Resistor
LT1431 Programmable Reference 0.4% Initial Voltage Tolerance
LT1680 High Power DC/DC Step-Up Controller Operation Up to 60V Maximum
LT1681 Dual Transistor Synchronous Forward Controller Operation Up to 72V Maximum
LT1725 General Purpose Isolated Flyback Controller Drives External Power MOSFET with External I
SENSE
Resistor
LT1737 High Power Isolated Flyback Controller Sense Output Voltage Directly from Primary-Side Winding
LT3710 Secondary Side Synchronous Post Regulator Generates a Regulated Auxiliary Output in Isolated DC/DC Converters, Dual
N-Channel MOSFET Synchronous Drivers
LT3781 Dual Transistor Synchronous Forward Controller Operation up to 72V Maximum
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
●
FAX: [phone]
●
www.linear.com
TYPICAL APPLICATIO S
U
LT3781/LTC1698 Isolated 3.3V/15A Converter
LT3781/LTC1698 Isolated 3.3V/15A Converter
LOAD CURRENT (A)
0
EFFICIENCY (%)
95
90
85
80
75
70
65
5
10 15 20
1698 TA01
25 30
V
IN
= 36V
V
IN
= 72V
V
IN
= 48V
I
OUT
(XX)
0
EFFICIENCY (%)
95
90
85
80
75
70
12
1698 TA02
3
6
9
15
V
IN
= 36V
V
IN
= 72V
V
IN
= 48V
LT3781/LTC1698 Isolated 3.3V/15A Converter
Efficiency vs Load Current
LT3781/LTC1698 Isolated 5V/30A Converter
Efficiency vs Load Current
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