Datasheet

LTC3545/LTC3545-1
6
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TYPICAL PERFORMANCE CHARACTERISTICS
Start-Up From Shutdown
Loaded
PFET R
DS(ON)
vs Supply Voltage PFET R
DS(ON)
vs Temperature
NFET R
DS(ON)
vs Supply Voltage
Start-Up From Shutdown
No Load Load Step Crosstalk
NFET R
DS(ON)
vs Temperature
200µs/DIV
I
SUPPLY
1A/DIV
RUNX
5V/DIV
V
OUT1
V
OUT2
V
OUT3
(ALL 1V/DIV)
3545 G13
T
A
= 25°C
V
IN
= 3.6V
I
LOAD
= 600mA, ALL CHANNELS
200µs/DIV
I
SUPPLY
50mA/DIV
V
OUT1
1V/DIV
V
OUT2
1V/DIV
V
OUT3
1V/DIV
3545 G14
T
A
= 25°C
V
IN
= 3.6V
I
LOAD
= 0, ALL CHANNELS
200µs/DIV
I
LOAD
CH1
50mA/DIV
V
OUT2
2mV/DIV
V
OUT3
2mV/DIV
V
OUT1
100mV/DIV
3545 G15
T
A
= 25°C
V
IN
= 3.6V
500mA LOAD STEP IN CHANNEL1
CHANNELS 2 AND 3 LOADED AT 400mA EACH
SUPPLY VOLTAGE (V)
2
0
R
DS(ON)
()
0.20
0.60
0.50
3
4
3545 G16
0.10
0.40
0.30
5
6
T
A
= 125°C
T
A
= 80°C
T
A
= 25°C
T
A
= 0°C
T
A
= –40°C
TEMPERATURE (°C)
–40
0
R
DS(ON)
()
0.05
0.15
0.20
0.25
0.50
0.35
10
3545 G17
0.10
0.40
0.45
0.30
60 110
V
IN
= 2.5V
V
IN
= 3.5V
V
IN
= 5.5V
SUPPLY VOLTAGE (V)
2
0
R
DS(ON)
()
0.20
0.60
0.50
3
4
3545 G18
0.10
0.40
0.30
5
6
T
A
= 125°C
T
A
= 80°C
T
A
= 25°C
T
A
= 0°C
T
A
= –40°C
TEMPERATURE (°C)
–40
0
R
DS(ON)
()
0.05
0.15
0.20
0.25
0.50
0.35
10
3545 G19
0.10
0.40
0.45
0.30
60 110
V
IN
= 2.5V
V
IN
= 3.5V
V
IN
= 5.5V