LTC3101 Linear Technology, LTC3101 Datasheet - Page 12

• Manufacturer Part Number: LTC3101
• Description: Multi-Output DC/DC Converter and PowerPath Controller
• Manufacturer: Linear Technology

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LTC3101
BLOCK DIAGRAM
12
11
10
23
21
24
22
3
4
2
5
*BAT1 AND BAT2 MUST BE CONNECTED TOGETHER IN THE APPLICATION
USB1 AND USB2 MUST BE CONNECTED TOGETHER IN THE APPLICATION
MAX
LDO
BAT1*
USB1*
SW1
FB1
ENA1
SW2
ENA2
FB2
CONTROL
WELL
CONTROL
CURRENT
LIMIT
AND
MAX
4M
4M
CONTROL
WELL
CONTROL
ALWAYS-ON
BUCK 1
CONTROL
LDO
14
BAT2*
CONTROL
BUCK 2
16
USB2*
OVERTEMPERATURE
SHUTDOWN AND
UNDERVOLTAGE
OSCILLATOR
REFERENCE
BANDGAP
LOCKOUT
1.27MHz
CONTROL
(EXPOSED PAD)
A´
WELL
FB1 POWER BAD (IF ENABLED)
FB2 POWER BAD (IF ENABLED)
FB3 POWER BAD (IF ENABLED)
GND
25
A
OVERTEMPERATURE FAULT
UNDERVOLTAGE FAULT
15
PUSHBUTTON
BUCK-BOOST
SW3A
B
CONTROL
CONTROL
LOGIC
DISABLED
1μA
C
20
SW3B
1.20V
4M
4M
D
DEGLITCH
24ms
+
–
17
OUT3
CONTROL
Hot Swap
V
CC
400k
PWRKEY
PWRON
PBSTAT
RESET
ENA3
PWM
HSO
FB3
C
RS
3101 BD
18
19
13
12
7
8
9
1
6
3101f