24
LTC1421/LTC1421-2.5
LINEAR TECHNOLOGY CORPORATION 1996
1421fc LT/LCG 0301 2K REV C • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
TYPICAL APPLICATION
U
10
11
6
7
8
14
13
15
9
1
24
4
5
3
2
12
LTC1421
Q3
1/2 IRF7101
Q2
1/2 IRF7101
PCI
CONNECTOR
Q1
IRF7413
1617
R11
10Ω
C2
0.22µF
25V
R4
30Ω
181920212223
Q4
IRF7413
12V
3.3A CIRCUIT BREAKER
3.3V
11.5A CIRCUIT BREAKER
5V
10A CIRCUIT BREAKER
R10
100k
R13
5.1k
R5
20k
R12
10Ω
C1
1µF
16V
R1
0.005Ω
5%
1/2W
R14
5.1k
R2
0.015Ω
5%
1W
R8
5.62k
1%
1/16W
R3
0.005Ω
5%
1W
POWER GOOD
RST #
SELECT BITS
BUS ENABLE
FAULT
12V
500mA
3.3V
7.5A
5V
5A
ON/OFF
DATA BUS
–12V
100mA
PCI POWER
CONTROLLER
QuickSwitch
R7
130k
R9
10Ω
Q5
TP0610T
C3
1µF
25V
R6
100Ω
1%
1/16W
–12V
NO CIRCUIT BREAKER
GND
1421 F27
ALL RESISTORS 5%, 1/16W EXCEPT WHERE NOTED
RST #
LOGIC
PCI PERIPHERALMOTHERBOARD OR BACKPLANE
1µF
4
3
21
4
3
21
4
3
21
10k
Figure 27. PCI Power Controller
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