LTC3101 Linear Technology, LTC3101 Datasheet - Page 29

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

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TYPICAL APPLICATIONS
VOLTAGES
OUTPUT
ENABLE
5V/DIV
1V/DIV
2V/DIV
HSO
4.3V TO 5.5V
USB POWER
V
Power-Up Waveforms
OUT3
DISABLE ENABLE
CELLS
2 AA
200μs/DIV
+
V
V
0.22μF
OUT2
OUT1
C1
C2
10μF
C3
10μF
BAT1
USB1
USB2
ENA1
ENA2
ENA3
CRS
Manual Enable with Simultaneous Start-Up
3101 TA03b
BAT2 SW3A
LTC3101
GND
4.7μH
SW3B OUT3
PWRON
PWM
MAX
SW2
SW1
HSO
LDO
FB3
FB2
FB1
RESET 5V/DIV
V
V
V
4.7μH
4.7μH
OUT1
OUT2
OUT3
C4
10μF
221k
110k
221k
147k
ENABLE
R3
R4
R5
R6
5V/DIV
2V/DIV
2V/DIV
5V/DIV
5V/DIV
C
RS
R1
1M
R2
221k
3101 TA03a
C5
4.7μF
C6
4.7μF
C8
22pF
C10
22pF
V
300mA FOR V
800mA FOR V
RESET Timing During Power Up
OUT3
= 3.3V
C7
4.7μF
C11
10μF
C9
10μF
IN
IN
≥ 1.8V
≥ 3V
50ms/DIV
Hot Swap OUTPUT
3.3V
100mA
TRACKING OUTPUT
200mA
1.8V
50mA
V
1.8V
350mA
V
1.5V
350mA
OUT2
OUT1
LTC3101
3101 TA03c
29
3101f