LT3517
TYPICAL PERFORMANCE CHARACTERISTICS
VISP – VISN Threshold vs
Temperature
Switch Current Limit vs
Temperature
Oscillator Frequency vs
Temperature
2.5
2.0
1.5
1.0
0.5
0
2.5
2.3
2.1
1.9
1.7
1.5
104
V
IN
= 5V
V
V
V
V
= 5V
V
= 5V
IN
IN
= 24V
R
= 6.04k
T
ISP
= 1V
103
102
C
= 2V
CTRL
101
100
99
98
97
96
–40 –20
0
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
–40 –20
0
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
–20
0
40 60 80 100 120 140 160
–40
20
TEMPERATURE (°C)
3518 G05
3517 G06
3517 G04
Reference Voltage vs
Temperature
VISP – VISN Threshold vs VISP
Quiescent Current vs VIN
105
104
103
102
101
100
99
2.02
2.01
2.00
1.99
8
7
6
5
4
3
2
1
0
T
= 25°C
= 0V
V
V
= 2V
V
= 5V
A
C
CTRL
IN
IN
V
= 5V
T
= 25°C
= 1V
A
V
C
98
97
96
1.98
95
–40 –20
0
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
20
(V)
0
10
20
V
30
(V)
40
50
0
10
30
40
V
ISP
IN
3517 G08
3517 G07
3517 G09
PMOS Turn-On
PMOS Turn-Off
FB Pin Threshold vs Temperature
1.04
1.03
1.02
V
IN
= 5V
5V
0V
5V
0V
PWM
PWM
1.01
1.00
0.99
0.98
40V
TG
30V
40V
TG
30V
3517 G11
3517 G11
V = 40V
ISP
200ns/DIV
V
= 40V
200ns/DIV
–40 –20
0
20 40 60 80 100 120 140 160
TEMPERATURE (°C)
ISP
3517 G10
3517fa
5
Linear [ Linear ]
