LTC1698
U
TYPICAL APPLICATIO S
LT3781/LTC1698 Isolated 5V/30A Converter
Efficiency vs Load Current
LT3781/LTC1698 Isolated 3.3V/15A Converter
95
V
= 36V
IN
90
85
80
75
70
65
V
= 48V
IN
V
= 72V
IN
0
10
15
20
25
30
5
TOP
LOAD CURRENT (A)
1698 TA01
LT3781/LTC1698 Isolated 3.3V/15A Converter
Efficiency vs Load Current
LT3781/LTC1698 Isolated 3.3V/15A Converter
95
V
= 36V
IN
90
85
80
75
70
V
= 48V
IN
V
3
= 72V
IN
0
6
I
9
(XX)
12
15
BOTTOM
OUT
1698 TA02
RELATED PARTS
PART NUMBER
LT1339
DESCRIPTION
COMMENTS
Operation Up to 60V Maximum
High Power Synchronous DC/DC Controller
Isolated Flyback Switching Regulator
Programmable Reference
LT1425
General Purpose with External Application Resistor
0.4% Initial Voltage Tolerance
LT1431
LT1680
High Power DC/DC Step-Up Controller
Dual Transistor Synchronous Forward Controller
General Purpose Isolated Flyback Controller
High Power Isolated Flyback Controller
Secondary Side Synchronous Post Regulator
Operation Up to 60V Maximum
LT1681
Operation Up to 72V Maximum
LT1725
Drives External Power MOSFET with External I
Resistor
SENSE
LT1737
Sense Output Voltage Directly from Primary-Side Winding
LT3710
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
1698f
LT/TP 0203 2K • PRINTED IN THE USA
24 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
●
LINEAR TECHNOLOGY CORPORATION 2000
(408) 432-1900 FAX: (408) 434-0507 www.linear.com