LTC3577-4_15 Datasheet, PDF (49/52 Pages) Linear Technology – Highly Integrated Portable Product PMIC

TYPICAL APPLICATIONS
LTC3577-3/LTC3577-4
5V WALL
ADAPTER
Si2333DS
Si2306BDS
D3
5.6V
R1
500k
13
6.2k
8
OPTIONAL OVERVOLTAGE/
REVERSE VOLTAGE PROTECTION
40
USB
10μF
2k ₃₆
DV_CC
SDA
SCL
μC/μP
EXTPWR
PBSTAT
PWR_ON
KILL
2.1k ₄₃
10
11
12
499k 499k 499k
42
16
14
4 41
WALL ACPR
30
OVGATE V_INLDO1
OVSENSE
39
V_OUT
V_BUS
32
V_IN12
LTC3577-3/
6
LTC3577-4 V_IN3
PROG
CHRG ⁴⁴
IDGATE ³⁷
10μF
2.2μF
2.2μF
CLPROG
DV_CC
SDA
BAT ³⁸
34 ^100k
NTCBIAS
35
NTC
SCL
EXTPWR
18,19,20
SW
9 ^6M
LED_OV
PBSTAT
PWR_ON
22
I_LED
3 ^20k
LED_FS
Si2333DS
V_OUT
SYSTEM
LOAD
1k
100k
NTC
22nF
50V
Si2333DS
(OPT)
+
BAT
Li-Ion
20μF
10μH
ZLLS400
6-LED BACKLIGHT
V_BOOST
1μF
50V
EN3
I_LIM0
RST ^ILIM1
V_LDO1
2.5V
150mA
V_LDO2
1.0V
150mA
17
1
2
PUSHBUTTON
EN3
I_LIM0
I_LIM1
33
SW1
4.7μH
26
FB1
15 _ON
28
LDO1
30
V_INLDO2
31
SW2
4.7μH
1μF _470k
1.00M
23
LDO1_FB
29
LDO2
25
FB2
5
SW3
3.3μH
1μF _464k
115k
24
LDO2_FB
7
FB3
21
PGOOD
GND
45
100k
10pF 1.02M _324k
10pF 806k _649k
10pF 402k _649k
10μF
V_OUT1
3.3V
500mA
10μF
10μF
V_OUT2
1.8V
500mA
V_OUT3
1.3V
800mA
35773 TA03
357734fb
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