LT1935 Ver la hoja de datos (PDF) - Linear Integrated System
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LT1935 Datasheet PDF : 8 Pages
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LT1935
TYPICAL APPLICATIO S
8V, 16V and –8V TFT LCD Power Supply
16V
10mA
L1
C5
0.1µF
D2B
D2A
C3
1µF
VIN
2.2µH
8V
3.3V
450mA
D1
C1
4.7µF
VIN
SW
LT1935
R1
100k
C2
ON OFF SHDN
FB
10µF
GND
R2
18.7k
C1: X5R OR X7R 6.3V
C2, C4, C5, C6: X5R OR X7R 10V
C3: X5R OR X7R 25V
D1: MBRM120 OR EQUIVALENT
D2, D3: BAT-54S OR EQUIVALENT
L1: SUMIDA CDRH4D28-2R2
C6
0.1µF D3A
D3B
C4
1µF
–8V
10mA
1935 TA03
VIN
3.2V TO 9V
5V SEPIC Converter
L1
4.7µH
C3
2.2µF
D1
C1
4.7µF
ON OFF
VIN
SW
LT1935
SHDN
FB
GND
R1
29.4k
R2
10k
47pF
L2
4.7µH
VOUT
5V
425mA, VIN >3.2V
500mA, VIN >3.6V
550mA, VIN >4V
C2
47µF
C1, C3: X5R OR X7R 10V
C2: X5R OR X7R 6.3V
D1: ON SEMI MBRM120
L1, L2: SUMIDA CDRH4D18-4R7
1935 TA04
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8
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
COMMENTS
VIN: 1.6V to 18V, VOUT(MAX): 35V, IQ: 1.8mA,
ISD: <1µA, MS, DFN Packages
VIN: 2.6V to 16V, VOUT(MAX): 34V, IQ: 4.2mA/5.5mA
ISD: <1µA, ThinSOT Package
VIN: 4.5V to 22V, VOUT(MAX): 40V, IQ: 10mA,
ISD: <35µA, TSSOP-28E Package
VIN: 2.45V to 16V, VOUT(MAX): 34V, IQ: 3.2mA,
ISD: <1µA, MS8 Package
VIN: 0.85V to 5V, VOUT(MAX): 5V, IQ: 19µA/300µA
ISD: <1µA, ThinSOT Package
VIN: 0.5V to 5V, VOUT(MAX): 6V, IQ: 38µA,
ISD: <1µA, MS Package
VIN: 0.5V to 4.5V, VOUT(MAX): 5.25V, IQ: 12µA,
ISD: <1µA, QFN Package
VIN: 3V to 25V, VOUT(MAX): 34V, IQ: 0.9mA,
ISD: <6µA, TSSOP-16E Package
VIN: 2.6V to 16V, VOUT(MAX): 40V, IQ: 1.2mA,
ISD: <1µA, ThinSOT Package
1935f
LT/TP 0604 1K • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2004
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