Datasheet

LT3508
5
3508fd
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
20
25
35
3508 G12
15
10
5
0
30
OUTPUT CURRENT (µA)
SINKING
SOURCING
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
INPUT VOLTAGE (V)
3.5
3508 G16
2.0
1.0
0.5
0
4.0
3.0
2.5
1.5
V
IN1
V
IN2
TYPICAL PERFORMANCE CHARACTERISTICS
Quiescent Current V
C
Voltages
Error Amp Output Current
Switch Voltage Drop
Boost Pin Current
Undervoltage Lockout
SHDN Pin Current
INPUT VOLTAGE (V)
0
0
INPUT CURRENT (mA)
0.5
1.5
2.0
2.5
5.0
3.5
10
20
25
3508 G10
1.0
4.0
4.5
3.0
515
30
35
40
T
A
= 25°C
V
IN1
V
IN2
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
0
V
C
VOLTAGE (V)
1.0
2.5
3508 G11
0.5
2.0
1.5
CLAMP VOLTAGE
TO SWITCH
SWITCH CURRENT (A)
0
350
300
250
200
150
100
50
0
3508 G13
0.5
1 1.5
SWITCH VOLTAGE (mV)
T
A
= 25°C
SWITCH CURRENT (A)
0
35
30
25
20
15
10
5
0
3508 G14
0.5
1 1.5
BOOST PIN CURRENT (mA)
T
A
= 25°C
SHDN PIN VOLTAGE (V)
0
0
SHDN PIN CURRENT (µA)
20
40
60
80
10 20
30
40
3508 G15
100
120
515
25
35
T
A
= –45°C
T
A
= 125°C
T
A
= 25°C