LT1620 查看數據表（PDF） - Linear Technology
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LT1620 Datasheet PDF : 12 Pages
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LT1620/LT1621
TYPICAL APPLICATION
0.033Ω
5V
0.1µF
Electronic Circuit Breaker
Si9434DY
1k
5V AT 1A
PROTECTED
FAULT
33k
2N3904
1
SENSE
8
AVG
2
IOUT
PROG 7
3
LT1620MS8
GND
VCC
6
4
–IN
5
+IN
CDELAY
100Ω
1N4148
100k
4.7k
33k
TYPICAL DC TRIP AT 1.6A
3A FAULT TRIPS
IN 2ms WITH CDELAY = 1.0µF
2N3904
LT1620/21 • TA03
RELATED PARTS
PART NUMBER
LTC®1435
DESCRIPTION
High Efficiency Low Noise Synchronous Step-Down
Switching Regulator
COMMENTS
16-Pin Narrow SO and SSOP, VIN ≤ 36V, Programmable
Constant Frequency
LTC1436/LTC1436-PPL/ High Efficiency Low Noise Synchronous Step-Down
LTC1437
Switching Regulator Controllers
Full-Featured Single Controller, VIN ≤ 36V, Programmable
Constant Frequency
LTC1438/LTC1439
Dual High Efficiency Low Noise Synchronous Step-Down Full-Featured Dual Controllers, VIN ≤ 36V, Programmable
Switching Regulators
Constant Frequency
LT1510
1.5A Constant-Current/Constant-Voltage Battery Charger Step-Down Charger for Li-Ion, NiCd and NiMH
LT1511
3.0A Constant-Current/Constant-Voltage Battery Charger Step-Down Charger that Allows Charging During Computer
with Input Current Limiting
Operation and Prevents Wall-Adapter Overload
LT1512
SEPIC Constant-Current/Constant-Voltage Battery Charger Step-Up/Step-Down Charger for up to 1A Charging Current
LT1513
SEPIC Constant-Current/Constant-Voltage Battery Charger Step-Up/Step-Down Charger for up to 2A Charging Current
LTC1538-AUX
Dual High Efficiency Low Noise Synchronous Step-Down 5V Standby in Shutdown, VIN ≤ 36V, Programmable
Switching Regulator
Constant Frequency
LTC1539
Dual High Efficiency Low Noise Synchronous Step-Down 5V Standby in Shutdown, VIN ≤ 36V, Programmable
Switching Regulator
Constant Frequency
12 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417q (408)432-1900
FAX: (408) 434-0507q TELEX: 499-3977 q www.linear-tech.com
16201f LT/GP 0197 7K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1996
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