Datasheet

LTC3544
6
3544fa
V
OUT100
1mV/DIV
V
OUT200A
1mV/DIV
V
OUT200B
1mV/DIV
V
OUT300
50mV/DIV
40μs/DIVV
IN
= 3.6V
T
A
= 25°C
300mA LOAD STEP ON V
OUT300
OTHER CHANNELS LOADED 50% OF MAXIMUM
3544 G17
TYPICAL PERFORMANCE CHARACTERISTICS
Load Step Response
100mA Channel
Load Step Crosstalk
V
OUT100
50mV/DIV
AC COUPLED
I
L
100mA/DIV
I
LOAD
100mA/DIV
20μs/DIVV
IN
= 3.6V
V
OUT
= 1.2V
T
A
= 25°C
I
LOAD
= 400μA TO 100mA
3544 G16
PFET R
DS(ON)
vs Temperature
NFET R
DS(ON)
vs Temperature
TEMPERATURE (°C)
–50
0
R
DS(ON)
(Ω)
0.1
0.3
0.4
0.5
1.0
0.7
–10
30
50
3544 G18
0.2
0.8
0.9
0.6
–30 10
70
90
V
IN
= 3.6V
300
200B
200A
100
TEMPERATURE (°C)
–50
0
R
DS(ON)
(Ω)
0.2
0.3
0.4
0.5
0.6
0.7
0
50
3544 G19
0.8
0.9
1.0
V
IN
= 3.6V
0.1
100
300
200B
200A
100
PFET R
DS(ON)
vs Supply Voltage
NFET R
DS(ON)
vs Supply Voltage
V
IN
(V)
2
0
R
DS(ON)
(Ω)
0.2
0.4
0.6
0.8
34
5
6
3544 G16
1.0
1.2
2.5 3.5
4.5
5.5
300
200B
200A
100
T
A
= 25°C
V
IN
(V)
2
0
R
DS(ON)
(Ω)
0.1
0.3
0.4
0.5
1.0
0.7
3
4
3544 G17
0.2
0.8
0.9
0.6
5
6
300
200B
200A
100
T
A
= 25°C