LTC3577-4_15 Datasheet, PDF (48/52 Pages) Linear Technology – Highly Integrated Portable Product PMIC

LTC3577-3/LTC3577-4
TYPICAL APPLICATIONS
5V WALL
ADAPTER
USB
DV_CC
SDA
SCL
μC/μP
EXTPWR
PBSTAT
PWR_ON
KILL
499k
4 41
Si2333DS
WALL ACPR
13
30
OVGATE
8
OVSENSE
V_INLDO2
V_INLDO1
V_OUT
27
39
10μF
2.2μF
V_OUT
SYSTEM
LOAD
40
32
10μF
V_BUS
V_IN12
LTC3577-3/
6
2.2μF
1k
LTC3577-4 V_IN3
2k ₃₆
2.1k ₄₃
10
11
12
499k 499k
42
16
14
PROG
CLPROG
DV_CC
SDA
SCL
EXTPWR
PBSTAT
PWR_ON
CHRG
IDGATE
BAT
NTCBIAS
NTC
SW
LED_OV
I_LED
LED_FS
44
37
38
34 ^100k
35
18,19,20
9 ^10M
22
3 ^20k
Si2333DS
(OPT)
+
BAT
Li-Ion
100k
NTC
10μH
20μF
ZLLS400
22nF
10-LED BACKLIGHT
50V
V_BOOST
1μF
50V
EN3
I_LIM0
RST ^ILIM1
V_LDO1
3.3V
150mA
V_LDO2
1.4V
150mA
17 _EN3
1
2
I_LIM0
I_LIM1
PUSHBUTTON
33
SW1
4.7μH
26
FB1
15 _ON
28
LDO1
31
SW2
4.7μH
1μF _324k
1.02M
23
LDO1_FB
29
LDO2
25
FB2
5
SW3
3.3μH
1μF _464k
348k
24 _{LDO2_FB}
7
FB3
21
PGOOD
GND
45
100k
10pF 806k _649k
10pF 1.02M _324k
10pF 232k _464k
10μF
V_OUT1
1.8V
500mA
10μF
10μF
V_OUT2
3.3V
500mA
V_OUT3
1.2V
800mA
35773 TA02
48
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