LT3518 View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
LT3518 Datasheet PDF : 20 Pages
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Typical Performance Characteristics
LT3518
VISP – VISN Threshold vs VCTRL
120
VIN = 5V
VISP = 24V
100 VC = 1V
TA = 25°C
80
60
40
20
0
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6
VCTRL (V)
3518 G01
VISP – VISN Threshold
vs Temperature
104
VIN = 5V
103
VISP = 24V
VC = 1V
102 VCTRL = 2V
101
100
99
98
97
96
–40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3518 G04
VISP – VISN Threshold vs VISP
105
VCTRL = 2V
104 VIN = 5V
103
TA = 25°C
VC = 1V
102
101
100
99
98
97
96
95
0
10
20
30
40
50
VISP (V)
3518 G07
Switch Current Limit
vs Duty Cycle
3.0
2.5
2.0
1.5
1.0
0.5
TA = 25°C
0
0
20
40
60
DUTY CYCLE (%)
80
100
3518 G02
Switch Current Limit
vs Temperature
3.0
VIN = 5V
2.8
Oscillator Frequency vs RT
10000
TA = 25°C
1000
100
1
10
RT (kΩ)
Oscillator Frequency
vs Temperature
2.5
VIN = 5V
RT = 6.04k
2.3
100
3518 G03
2.6
2.1
2.4
1.9
2.2
1.7
2.0
–40 –15 –10 35 60 85 110 135 160
TEMPERATURE (°C)
3518 G05
Reference Voltage
vs Temperature
2.02
VIN = 5V
2.01
2.00
1.99
1.98
–40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3518 G08
1.5
–40 –20 0 20 40 60 80 100 120 140 160
TEMPERATURE (°C)
3518 G06
Quiescent Current vs VIN
8 TA = 25°C
7 VC = 0V
6
5
4
3
2
1
0
0
10
20
30
VIN (V)
40
3518 G09
3518ff
For more information www.linear.com/LT3518
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