LTC3577 Datasheet, PDF (50/52 Pages) Linear Technology – Highly Integrated 6-Channel Portable PMIC

LTC3577/LTC3577-1
TYPICAL APPLICATION
USB Plus HV Input Charger, Multi-Channel Power Supply and PowerPath Controller
HV_IN
8V TO 38V
(TRANSIENTS
TO 60V)
4.7μF
4
V_IN
2
BOOST
68nF 150k
LT3480
5
3
RUN/SS SW
40.2k ₁₀
6
NC
7
NC
RT
SYNC
PG
GND
1
BD
8
FB
V_C
11
9
0.47μF
6.8μH
OPTIONAL HIGH VOLTAGE
BUCK INPUT
DFLS240L 499k
22μF
100k
Si2333DS
42 4 41
V_C WALL ACPR
30
V_INLDO2
10μF
Si2306BDS
40
39
USB
V_BUS
10μF
V_OUT
32
2.2μF
V_IN12
2.2μF
1k
V_OUT
SYSTEM
LOAD
6.2k
OPTIONAL
OVERVOLTAGE
PROTECTION
13
OVGATE
8
OVSENSE
6
V_IN3
CHRG ⁴⁴
IDGATE ³⁷
2.1k _{43 CLPROG}
BAT ³⁸
2k ₃₆
PROG
34 ^100k
NTCBIAS
35
NTC
LTC3577
Si2333DS
(OPT)
+
BAT
Li-Ion
100k
NTC
10μH
20μF
ZLLS400
10
18,19,20
DV_CC
SDA
SCL
11 ^DVCC
SDA
12
SCL
SW
9 ^10M
LED_OV
22
22nF
10-LED BACKLIGHT
1μF
50V
μC/μP
WAKE
499k 499k
17
WAKE
I_LED
3 ^20k
LED_FS
PBSTAT
PWR_ON
16
14
PBSTAT _{PG_DCDC}
PWR_ON
21
I_LIM0
RST I_LIM1
1
2
I_LIM0
I_LIM1
PUSHBUTTON
33
SW1
4.7μH
26
100k
10pF 1.02M _324k
10μF
V_OUT1
3.3V
400mA
FB1
15 _ON
V_INLDO1 ²³
V_LDO1
1.2V
28
LDO1
31
SW2
4.7μH
V_OUT2
1.8V
75mA
1μF _464k
232k
27 _{LDO1_FB}
FB2 ²⁵
10pF 806k _649k
10μF ^400mA
V_LDO2
2.5V
29
LDO2
5
SW3
3.3μH
V_OUT3
1.2V
150mA
1μF _470k
1.00M
24
LDO2_FB
7
FB3
10pF 232k _464k
10μF ^600mA
GND
45
3577 TA03
3577f
50