Datasheet

LTC3577/LTC3577-1
51
3577fa
TYPICAL APPLICATIONS
Figure 27. USB Plus HV Input Charger, Multichannel Power Supply and PowerPath Controller
16
NC
WALL
Si2306BDS
ACPR
OVGATE
V
INLDO2
42
9
87
11
441
30
V
OUT
39
10µF
13
OVSENSE
8
V
BUS
CLPROG
PROG
LDO1
LDO1_FB
LDO2
LDO2_FB
40
USB
43
36
DV
CC
10
SDA
SCL
11
499k
12
WAKE
PBSTAT
17
16
PWR_ON
14
I
LIM0
1
I
LIM1
2
24
29
27
28
ON
15
10µF
6.2k
OPTIONAL
OVERVOLTAGE
PROTECTION
LTC3577
GND
V
IN3
6
44
2.2µF
V
IN12
CHRG
37
IDGATE
38
BAT
32
SW
18,19,20
NTCBIAS
34
NTC
35
2.2µF
1k
100k
BAT
20µF
1µF
50V
V
OUT1
3.3V
500mA
100k
Li-Ion
10µH
ZLLS400
10-LED BACKLIGHT
100k
NTC
Si2333DS
V
OUT
SYSTEM
LOAD
Si2333DS
(OPT)
DFLS240L
6.8µH
499k
22µF
0.47µF
100k
OPTIONAL HIGH VOLTAGE
BUCK INPUT
150k
68nF
40.2k
LED_OV
9
I
LED
22
10M
324k
LED_FS
3
PG_DCDC
21
SW1
33
FB1
26
V
INLDO1
23
4.7µH
20k
2.1k
2k
+
1.02M10pF 10µF
V
OUT2
1.8V
500mA
649k
SW2
31
FB2
25
4.7µH
806k10pF
10µF1µF
1µF
V
OUT3
1.2V
800mA
464k
470k
464k
PUSHBUTTON
SW3
5
FB3
7
45
3.3µH
232k10pF
232k
1.00M
V
LDO2
2.5V
150mA
V
LDO1
1.2V
75mA
10µF
3577 TA03
499k
DV
CC
SDA
SCL
WAKE
PBSTAT
PWR_ON
I
LIM0
I
LIM1
µC/µP
RST
V
C
V
C
GND
PGNC FB
SYNC
10
RT
5
4
RUN/SS
V
IN
BD
3
SW
2
BOOST
LT3480
4.7µF
HV
IN
8V TO 38V
(TRANSIENTS
TO 60V)
22nF