LT1683
26
1683fd
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2001
LT 1110 REV D • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LT1533 Ultralow Noise 1A Switching Regulator Push-Pull Design for Low Noise Isolated Supplies
LT1534 Ultralow Noise 2A Switching Regulator Ultralow Noise Regulator for Boost Topologies
LT1738 Ultralow Noise DC/DC Controller High Current Output Ultralow Noise Boost Regulator;
Drives External MOSFET
LT1777 Low Noise Step-Down Switching Regulator Programmable dI/dt; Internally Limited dV/dt
LT1425 Isolated Flyback Switching Regulator Excellent Regulation without Transformer “Third Winding”
LT1576 1.5A, 200kHz Step-Down Switching Regulator Constant Frequency, 1.21V Reference Voltage
LT176X Family Low Dropout, Low Noise Linear Regulator 150mA to 3A, SOT-23 to TO-220
LTC1922-1/LTC3722 Synchronous Phase Modulated Full-Bridge Controllers Adaptive DirectSense
TM
Zero Voltage Switching, 50W to
Kilowatts, Synchronous Rectification
LT3439 Ultralow Noise Transformer Driver 1A Push-Pull DC/DC Transformer Driver
MBR2045CT
COILTRONICS
VP5-1200
4.7µH
330µF
CAP A
CAP B
GATE A
GATE B
MBR2045CT
1µH
OPTIONAL
5V/5A
2×330µF
POSCAP
3
10
1683 TA02
1113
SHDN
CAP A
NFB
LT1683
GND
V
IN
17
14 2
GCL
SS
V5
SYNC
GATE A
5
1
C
T
CAP B
6
18
R
T
GATE B
7
19
8
R
CSL
16
V
C
15
12
R
VSL
CS
4
PGND
20
FB
9
IRF540
IRF540
10mΩ
10nF
1k
3.3k25k
3.3k
16.9k
1.5nF
39µF
24V
68µF
20V
11V
8.2V
6.9k
2N3904
1nF15nF
7.50k
2.49k
25k
3pF
7
3
6–10
11
1
9
4
8
5
2–12
10pF
3pF
10pF
Ultralow Noise 24V to 5V DC/DC Converter
