Datasheet

20
LTC1645
1645fa
Figure 23. Switching Regulator Hot Swap
Q1
FDB8030L
Q2
FDB8030L
Q3
FDS6680
10Ω
1500µF 6.3V × 6
1500µF 6.3V × 4
10Ω
220Ω
MBR0530LT1
1.02k 1%
2.67k 1%
1.13k 1%
0.01µF
25V
1µF
220pF
0.015µF
0.01µF
1µF
1µF
2200pF
5.1Ω
1.2µH
†
V
REGOUT
V
REGIN
**
100µF
0.33µF
0.1µF
100k
MBR0530LT1
0.1µF
0.1µF
0.33µF
0.01µF
112
2
3
8 9 6 5
11
7
10
4
ON FAULT
TIMER GND
1314
V
CC1
SENSE1
GATE2
GATE1
V
CC2
V
OUT1
3.3V 10A
LTC1645
(14-LEAD)
COMP
+
COMPOUT
FB
SENSE2
FAULT
1645 F23
0.047µF 25V
3.01k 1%
3.09k 1%
RESET
+
+
C
LOAD2
+
C
LOAD1
+
V
OUT2
2.5V 15A
V
IN
3.3V
GND
10k
4.99k 1%
1.82k 1%
D2
MBR0530T1
10k
33k
R2 1k
R1 1.8k
D1
1N4148
1.87k 1%
GND
RESET
0.003Ω*
0.003Ω*
*LRF2010-01-R003-J (IRC) **MBRS340T (ON SEMICONDUCTOR)
†
ETQP6F1R2HFA (PANASONIC)
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
0.33µF
0.1µF
18k
1k
IRF7801
IRF7801
IRF7801
IRF7801
G2
PV
CC2
V
CC
I
FB
I
MAX
COMP
CPOUT
C
+
G1 PV
CC1
GND FB SHDN SS V
IN
C
–
LTC1649
10µF
+
+
10Ω
APPLICATIO S I FOR ATIO
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