LTC3101
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise specified)
Buck-Boost Load Step,
0mA to 800mA
PBSTAT Deglitch Duration
PBSTAT Deglitch Duration
30
28
26
24
22
20
18
16
14
12
10
25
24
23
22
21
20
OUTPUT
VOLTAGE
200mV/DIV
INDUCTOR
CURRENT
500mA/DIV
3101 G30
V
V
= 3V
50μs/DIV
BAT
OUT
= 3.3V
L = 4.7μH
C
= 10μF
OUT
–50
0
50
100
150
1
2
3
4
5
6
TEMPERATURE (°C)
SUPPLY VOLTAGE, V
OR V
(V)
BAT
USB
3101 G28
3101 G29
Buck-Boost Load Step,
0mA to 300mA
Buck Load Step, Burst Mode
Operation, 10mA to 350mA
Buck Load Step, PWM Mode,
35mA to 350mA
OUTPUT
VOLTAGE
100mV/DIV
OUTPUT
VOLTAGE
100mV/DIV
OUTPUT
VOLTAGE
200mV/DIV
INDUCTOR
CURRENT
500mA/DIV
INDUCTOR
CURRENT
200mA/DIV
INDUCTOR
CURRENT
200mA/DIV
3101 G32
3101 G33
3101 G31
V
V
= 3V
50μs/DIV
V
V
= 3V
50μs/DIV
V
V
= 1.8V
= 3.3V
50μs/DIV
BAT
OUT
BAT
OUT
BAT
OUT
L = 4.7μH
= 1.2V
= 1.2V
L = 4.7μH
L = 4.7μH
C
C
= 10μF
= 18pF
C
C
= 10μF
= 18pF
C
OUT
= 10μF
OUT
FF
OUT
FF
Buck-Boost Burst Mode Ripple
Buck Burst Mode Ripple
OUTPUT
VOLTAGE
20mV/DIV
OUTPUT
VOLTAGE
10mV/DIV
INDUCTOR
CURRENT
200mA/DIV
INDUCTOR
CURRENT
50mA/DIV
3101 G35
3101 G34
V
V
= 3V
20μs/DIV
V
V
= 3V
20μs/DIV
BAT
OUT
BAT
OUT
= 1.2V
= 3.3V
L = 4.7μH
L = 4.7μH
C
C
= 10μF
C
I
= 10μF
= 10mA
OUT
FF
OUT
= 18pF
LOAD
I
= 5mA
LOAD
3101f
8
Linear [ Linear ]
