LT3585-0/LT3585-1
LT3585-2/LT3585-3
TYPICAL PERFOR A CE CHARACTERISTICS
LT3585-1 Output Voltage
322
320
318
V
OUT
(V)
V
OUT
(V)
316
314
312
310
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
326
324
322
330
318
316
314
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
V
OUT
(V)
326
LT3585-0 curves use Figure 11, LT3585-1 curves
use Figure 12, LT3585-2 curves use Figure 13 and LT3585-3 curves use Figure 14 unless otherwise noted.
LT3585-2 Output Voltage
330
2
3
4
5
V
BAT
(V)
6
LT3585-0 Switch Waveform
Normal Input Current Mode
V
SW
10V/DIV
I
PRI
1A/DIV
V
BAT
= 3.6V
V
OUT
= 100V
2µs/DIV
LT3585-0 Switch Waveform
Reduced Input Current Mode
1.8
CURRENT LIMIT (A)
LT3585-0
1.2
0.9
0.6
0.3
0
–50 –30 –10 10 20 30 40 60
TEMPERATURE (°C)
*DYNAMIC CURRENT LIMIT IS HIGHER
THAN DC CURRENT LIMIT
LT3585-2
SWITCH CURRENT (mA)
V
SW
10V/DIV
I
PRI
1A/DIV
V
BAT
= 3.6V
V
OUT
= 300V
2µs/DIV
U W
7
8
3585 G28
3585 G31
3585 G34
LT3585-3 Output Voltage
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
328
324
322
2
3
4
5
V
BAT
(V)
6
7
8
3585 G29
320
2
3
4
5
V
BAT
(V)
6
7
8
3585 G30
LT3585-0 Switch Waveform
Reduced Input Current Mode
LT3585-0 Switch Waveform
Normal Input Current Mode
V
SW
10V/DIV
I
PRI
1A/DIV
V
SW
10V/DIV
I
PRI
1A/DIV
V
BAT
= 3.6V
V
OUT
= 100V
2µs/DIV
3585 G32
V
BAT
= 3.6V
V
OUT
= 300V
2µs/DIV
3585 G33
Switch DC Current Limit*
10
LT3585-3
1.5
9
8
7
6
5
4
3
2
1
80
3585 G35
LT3585-0/LT3585-1/LT3585-2/
LT3585-3 Switch Breakdown
Voltage
SW PIN IS RESISTIVE UNTIL BREAKDOWN
VOLTAGE DUE TO INTEGRATED RESISTORS.
THIS DOES NOT INCREASE QUIESCENT
CURRENT OF THE PART
T
A
= –40°C
T
A
= 25°C
T
A
= 85°C
LT3585-1
0
0
10 20 30 40 50 60 70 80 90 100
SWITCH VOLTAGE (V)
3585 G36
3585f
7
LINER [ LINEAR TECHNOLOGY ]
