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LT1271 Datasheet(PDF) 8 Page - Linear Technology

Part # LT1271
Description  4A High Efficiency Switching Regulators
Download  8 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1271 Datasheet(HTML) 8 Page - Linear Technology

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LT1271/LT1269
© LINEAR TECHNOLOGY CORPORATION 1992
TYPICAL APPLICATION
Negative Buck Converter
C1
L1**
100
µH
D1
MBR735
1271/69 TA05
12k
LT1271
VSW
FB
GND
VIN
VC
C2
100
µF
* REQUIRED IF INPUT LEADS
≥ 2"
** COILTRONICS CTX100-2-52
×
×
R1
4.64k
Q1
2N3906
R3
VIN
–8V TO –30V
C3*
100
µF
OPTIONAL
INTPUT
FILTER
L3
10
µH
R2
1.24k
LOAD
OPTIONAL
OUTPUT
FILTER
L2
4
µH
C4
200
µF
–5.2V AT 3.5A
+
+
+
127169fb LT/TP 0798 2K REV B • PRINTED IN USA
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1171
100kHz, 2.5A Boost Switching Regulator
Good for VIN Up to 40V
LT1370
500kHz, 6A Boost Switching Regulator
6A, 42V Internal Switch
LT1371
500kHz, 3A Boost Switching Regulator
3A, 42V Internal Switch, 90% Efficiency
LT1372
500kHz, 1.5A Boost Switching Regulator
Also Regulates Negative Flyback Outputs
LT1374
500kHz, 4.5A Buck Switching Regulator
VIN Up to 25V, SO-8 Package
LT1376
500kHz, 1.5A Buck Switching Regulator
VIN Up to 25V, Uses 4.7µH Inductor
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900q FAX:(408)434-0507 q www.linear-tech.com


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