LTC3576-1_15 Datasheet, PDF (16/48 Pages) Linear Technology – Switching Power Manager with USB On-the-Go Triple Step-Down DC/DCs

LTC3576/LTC3576-1
BLOCK DIAGRAM
OVSENS 6
OVP
OVGATE 5
V_BUS 35
V_BUS 34
CLPROG 1
NTCBIAS 3
NTC 4
CHRG 30
BATTERY
TEMPERATURE
MONITOR
CHARGE
STATUS
V_C
26
2.25MHz
BIDIRECTIONAL
PowerPath
SWITCHING
REGULATOR
SUSPEND LDO
500μA/2.5mA
–
+
5.1V
–
1.18V ⁺
OR 1.15V
V_C
CONTROL
WALL
DETECT
27 WALL
28 ACPR
3.3V LDO
36 SW
2 LDO3V3
33 V_OUT
CC/CV
CHARGER
0₊.3_–V
+
IDEAL
+–
–
15mV
31 IDGATE
32 BAT
3.6V
29 PROG
I_LIM
DECODE
LOGIC
I_LIM0 37
I_LIM1 38
ENOTG 11
EN1 10
EN2 22
EN3 19
DV_CC 12
SDA 14
SCL 13
I²C PORT
D/A
4
D/A
4
D/A
ENABLE
400mA 2.25MHz
BUCK
REGULATOR
ENABLE
400mA 2.25MHz
BUCK
REGULATOR
ENABLE
1A 2.25MHz
BUCK
REGULATOR
4
8 V_IN1
9 SW1
7 FB1
24 V_IN2
23 SW2
25 FB2
16 V_IN3
17 SW3
20 FB3
21 RST3
39
GND
3576 BD
16
3576fb