Datasheet

LT3570
6
3570fb
TYPICAL PERFORMANCE CHARACTERISTICS
SW2 Saturation Voltage
vs SW2 Current
BOOST Pin Current
vs Switch Current
NPN_DRV Output Current vs V
IN3
SW2 Current Limit vs Duty Cycle
DUTY CYCLE (%)
0
CURRENT (A)
1.0
2.0
3.0
0.5
1.5
2.5
20 40 60 80
3570 G12
10010030507090
T
J
= 125°C
T
J
= 25°C
T
J
= –40°C
CURRENT (A)
0
0
VOLTAGE (mV)
50
150
200
250
350
0.1
0.5
0.7
3570 G13
100
300
0.4
0.9
1.0
0.2
0.3
0.6 0.8
T
J
= 125°C
T
J
= 25°C
T
J
= –40°C
VOLTAGE (V)
1
CURRENT (mA)
10
12
14
40
3570 G15
8
6
0
10
20
30
5
15
25
35
4
2
18
16
T
J
= 25°C
T
J
= 125°C
T
J
= –40°C
CURRENT (A)
0
0
CURRENT (mA)
5
10
15
20
25
30
0.2 0.4 0.6 0.8
3570 G14
1.0
T
J
= –40°C
T
J
= 125°C
T
J
= 25°C