LT1683 데이터 시트보기 (PDF) - Linear Technology
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LT1683 Datasheet PDF : 26 Pages
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LT1683
TYPICAL APPLICATION
Ultralow Noise 24V to 5V DC/DC Converter
6.9k
11V
2N3904
39µF
8.2V
68µF
20V
17 3
VIN GCL
1.5nF
16.9k
25k 3.3k
25k 3.3k
1k
15nF 1nF
14
SHDN
5
V5
6
SYNC
2
CAP A
1
GATE A
7
CT
18
CAP B
8
RT
LT1683
19
GATE B
16
RVSL
4
CS
15
RCSL
20
PGND
12
VC
9
FB
SS GND NFB
13 11 10
10nF
24V
COILTRONICS
VP5-1200
MBR2045CT
7
6–10
3
11
2–12
3pF 1
10pF
9
4
8
5
MBR2045CT
3pF
10pF
IRF540
IRF540
10mΩ
4.7µH
330µF
OPTIONAL
1µH
2×330µF
POSCAP
5V/5A
CAP A
GATE A
CAP B
GATE B
7.50k
2.49k
1683 TA02
RELATED PARTS
PART NUMBER
LT1533
LT1534
LT1738
DESCRIPTION
Ultralow Noise 1A Switching Regulator
Ultralow Noise 2A Switching Regulator
Ultralow Noise DC/DC Controller
LT1777
LT1425
LT1576
LT176X Family
LTC1922-1/LTC3722
Low Noise Step-Down Switching Regulator
Isolated Flyback Switching Regulator
1.5A, 200kHz Step-Down Switching Regulator
Low Dropout, Low Noise Linear Regulator
Synchronous Phase Modulated Full-Bridge Controllers
LT3439
Ultralow Noise Transformer Driver
COMMENTS
Push-Pull Design for Low Noise Isolated Supplies
Ultralow Noise Regulator for Boost Topologies
High Current Output Ultralow Noise Boost Regulator;
Drives External MOSFET
Programmable dI/dt; Internally Limited dV/dt
Excellent Regulation without Transformer “Third Winding”
Constant Frequency, 1.21V Reference Voltage
150mA to 3A, SOT-23 to TO-220
Adaptive DirectSenseTM Zero Voltage Switching, 50W to
Kilowatts, Synchronous Rectification
1A Push-Pull DC/DC Transformer Driver
26 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
1683fd
LT 1110 REV D • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2001
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