Datasheet

LTC3677-3
42
36773f
Typical applicaTion
WALL
5V WALL
ADAPTER
ACPR
OVGATE V
INLDO2
V
INLDO1
4 41
30
V
OUT
39
27
10µF
13
OVSENSE
8
V
BUS
PROG
CLPROG
LDO1
LDO1_FB
LDO2
LDO2_FB
40
USB
36
43
DV
CC
10
SDA
SCL
11
499k
12
EXTPWR
PBSTAT
42
16
PWR_ON
14
I
LIM0
1
I
LIM1
2
24
29
23
28
ON
15
10µF
LTC3677-3
GND
V
IN3
6
44
2.2µF
V
IN12
CHRG
37
IDGATE
38
BAT
32
NC
3, 9, 18 ,19, 20, 22
NTCBIAS
34
NTC
35
2.2µF
1k
100k
BAT
20µF
V
OUT1
1.8V
500mA
Li-Ion
100k
NTC
Si2333DS
V
OUT
SYSTEM LOAD
Si2333DS
(OPT)
649k
SW1
33
FB1
26
4.7µH
2k
2.1k
+
806k10pF 10µF
V
OUT2
3.3V
500mA
324k
SW2
31
FB2
25
4.7µH
1.02M10pF 10µF1µF
1µF
V
OUT3
1.2V
800mA
464k464k
100k
324k
PUSHBUTTON
SW3
5
FB3
PGOOD
7
21
45
3.3µH
232k10pF
1.02M
348k
V
LDO2
1.4V
150mA
V
LDO1
3.3V
150mA
10µF
36773 TA02
499k499k
DV
CC
SDA
SCL
EXTPWR
PBSTAT
PWR_ON
KILL
I
LIM0
EN3
17
EN3
I
LIM1
µC/µP
RST