Datasheet

LT3574
4
3574f
typical perForMance characteristics
Switch Saturation Voltage Switch Current Limit Switch Current Limit vs R
ILIM
SHDN/UVLO Falling Threshold
SS Pin Current
T
A
= 25°C, unless otherwise noted.
SWITCH CURRENT (mA)
0
0
SWITCH V
CESAT
VOLTAGE (mV)
50
150
200
250
200
400
500 900
3574 G04
100
100 300
600
700
800
300
125°C
–50°C
25°C
TEMPERATURE (°C)
–50
CURRENT LIMIT (mA)
800
1000
1200
25 75
3574 G05
600
400
–25 0
50 100 125
200
0
MAXIMUM CURRENT LIMIT
MINIMUM CURRENT LIMIT
R
ILIM
= 10k
TEMPERATURE (°C)
–60
SHDN/UVLO VOLTAGE (V)
1.24
1.26
80
1.22
–20 20
–40 120
0 40
100
60 140
1.20
1.18
1.28
3574 G07
R
ILIM
RESISTANCE (kΩ)
1
0
SWITCH CURRENT LIMIT (A)
0.2
0.4
0.6
0.8
1.0
1.2
10 20 30 40
3574 G06
50
TEMPERATURE (°C)
–60
SS PIN CURRENT (µA)
8
10
80
6
4
–20 20
–40 120
0 40
100
60 140
2
0
12
3574 G08