LTC1421 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1421 Datasheet PDF : 24 Pages
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LTC1421/LTC1421-2.5
TYPICAL APPLICATION
12V
500mA
3.3V
7.5A
5V
5A
FAULT
ON/OFF
PCI POWER
CONTROLLER
POWER GOOD
RST #
SELECT BITS
BUS ENABLE
DATA BUS
–12V
100mA
Q3
1
2 1/2 IRF7101
3 R2 4
0.015Ω
5%
1W
R4
30Ω
R11
10Ω
R10
100k
R14
5.1k
C1
1µF
16V
1
2
3 R1 4
0.005Ω
5%
1/2W
23
22
Q1
IRF7413
R12
10Ω
21
20 19
1
24
4
5
LTC1421
3
2
12
18 17
10k
16
10
11
6
7
8
14
13
15
9
C2
0.22µF
25V
R13
5.1k
1µF
PCI
CONNECTOR
R3
0.005Ω
5%
1 1W 2
Q4
IRF7413
3
4
12V
3.3A CIRCUIT BREAKER
3.3V
11.5A CIRCUIT BREAKER
5V
10A CIRCUIT BREAKER
R6
100Ω
1%
1/16W
R8
5.62k
1%
1/16W
GND
LOGIC
RST #
QuickSwitch
ALL RESISTORS 5%, 1/16W EXCEPT WHERE NOTED
R5
20k
MOTHERBOARD OR BACKPLANE
R7
130k
Q5
R9
TP0610T 10Ω
Q2
1/2 IRF7101
C3
1µF
25V
1421 F27
– 12V
NO CIRCUIT BREAKER
PCI PERIPHERAL
Figure 27. PCI Power Controller
RELATED PARTS
PART NUMBER
LTC1155
LTC1422
LTC1477/LTC1478
LT1640L/LT1640H
LT1641
LTC1642
LTC1643L/LTC1643H
LTC1645
LTC1647
DESCRIPTION
Dual High Side Switch Driver
Hot Swap Controller in SO-8
Single and Dual Protected High Side Switches
Negative Voltage Hot Swap Controller in SO-8
High Voltage Hot Swap Controller in SO-8
Fault Protected Hot Swap Controller
PCI-Bus Hot Swap Controller
2-Channel Hot Swap Controller
Dual Hot Swap Controller
24 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900q FAX:(408)434-0507 q www.linear-tech.com
COMMENTS
Short-Circuit Protection and Micropower Standby Operation
System Reset Output with Programmable Delay
Inrush Current Limited, Built-In 2A Short-Circuit Protection
Operates from –10V to –80V
Operates from 9V to 80V
Operates Up to 16.5V, Protected to 33V
3.3V, 5V and ±12V in Narrow 16-Pin SSOP
Operates from 1.2V to 12V, Power Sequencing
Dual ON Pins for Supplies from 3V to 15V
1421fc LT/LCG 0301 2K REV C • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 1996
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