LTC1421(Rev_A) View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1421 Datasheet PDF : 24 Pages
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LTC1421/LTC1421-2.5
APPLICATIONS INFORMATION
5V
– 48V
R1
0.005Ω Q1
1W MTB50N06E
23 22 21 20 19 18 17 16
C2
1µF
10
2
9
24
13
C1
1µF
4
FAULT
LTC1421
3
1
S1
12
5
14
8
11
15
6
7
R3
340Ω
1/8W
R5
4.3k
1/8W
Q3
2N5401
5V
+ C4
8A
R7
2200µF
1k
16V
1/8W
1
3
+ C5
+IN +OUT +
220µF ASTRODYNE
100V 2 ASD10-48D12 5
–IN – OUT
CONTROL
6
+
12V
C7 0.42A
100µF
16V
– 12V
C6 0.42A
100µF
16V
C3
0.47µF
R6
15k
1/8W
IRF530
R4
10k
1/8W
1421 F24
BACKPLANE
PC BOARD
Figure 24. 5V and – 48V to ±12V Hot Swappable Supply
22
R1
0.005Ω Q1
5V
1/2W MTB50N06E
1k
5V
Q3
+
8A
2200µF
12Ω
100Ω
VN2222
16V
Q2
VN2222
R3
47.5k
+
C1
1µF
S1
23 22 21 20 19 18 17 16
1
10
24
3
LTC1421
7
8
2
14
13
12
15
C2
0.1µF
VCC
µP
RESET
GND
R4
10k
1421 F25
BACKPLANE PC BOARD
Figure 25. Hot Swappable 5V Supply with Overvoltage Protection
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