LTC1421 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1421' PDF : 24 Pages View PDF
LTC1421/LTC1421-2.5
APPLICATIONS INFORMATION
– 48V
R1
5.1k
11
D1
4.3V
1
0.1µF
24
12
0.1µF
3
2
23 22 19 18 17
8
LTC1421
14
13
15
R3
10k
4.7k
100µF
1µF
R2
300Ω
C1
0.1µF 100Ω
1N4148
+
+
VICOR
VI-J30-CY
– GATE IN –
5V
10A
100µF
4N25
– 48V
BACKPLANE
PC BOARD
Q1
1421 F21
Figure 21. – 48V to 5V Hot Swappable Supply
24V
FAULT
POR
R1
5.1k
1/4W
D1
+ C2
5.1V
2.2µF
25V
2
24
C1
1µF
4
3
1
S1
Q1
IRFR9110
C3 +
R2
+
2.2µF
15k
25V
1/8W
23 22 21 20 19 18 17 16
10
9
13
14
LTC1421
8
11
15
6
7
R4
300Ω
1/8W
R3
56k
1/8W
Q2
MPSA06
1µF
R5
10k
1/2W
R6
620Ω
1/8W
12 5
5
VIN
C4
4
VSW
200µF
50V 2
LT1074CT
1
VC
FB
GND
3
R9
2.7k
C6
0.01µF
1421 F22
L1
50µH
5V
R7
5A
D4
MBR745
2.8k
1%
+
C5
500µF
R8
25V
2.21k
1%
BACKPLANE PC BOARD
Figure 22. 24V to 5V Hot Swappable Supply Using the LT1074CT
20
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