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LT3485EDD-2#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
LT3485-0/LT3485-1/
LT3485-2/LT3485-3
4
34850123fb
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LT3485-0 curves use the circuit of Figure 8, LT3485-1
curves use the circuit of Figure 9, LT3485-2 use the circuit of Figure 10 and LT3485-3 use the circuit of Figure 11 unless otherwise noted.
LT3485-1 Input Current LT3485-2 Input Current LT3485-3 Input Current
LT3485-0 Input Current
LT3485-1 Charging Waveform
LT3485-0 Charging Waveform
LT3485-2 Charging Waveform
LT3485-3 Charging Waveform Charge Time
V
OUT
50V/DIV
0.5s/DIVV
IN
= 3.6V
C
OUT
= 50µF
3485 G01
AVERAGE
INPUT
CURRENT
1A/DIV
V
OUT
50V/DIV
0.5s/DIVV
IN
= 3.6V
C
OUT
= 50µF
3485 G02
AVERAGE
INPUT
CURRENT
0.5A/DIV
V
OUT
50V/DIV
0.5s/DIVV
IN
= 3.6V
C
OUT
= 50µF
3485 G03
AVERAGE
INPUT
CURRENT
0.5A/DIV
V
OUT
50V/DIV
0.5s/DIVV
IN
= 3.6V
C
OUT
= 50µF
3485 G04
AVERAGE
INPUT
CURRENT
1A/DIV
V
IN
(V)
2
0
CHARGE TIME (SECONDS)
1
2
3
4
6
3
456
1635 G05
78
5
LT3485-1
LT3485-3
LT3485-2
LT3485-0
C
OUT
= 50µF
V
OUT
(V)
0
INPUT CURRENT (mA)
400
500
600
150 250
3485 G06
300
200
50 100
200 300
100
0
2.5V
3.6V
4.2V
V
OUT
(V)
050
0
INPUT CURRENT (mA)
100
250
100
200
250
3485 G07
50
200
150
150
300
2.5V
3.6V
4.2V
V
OUT
(V)
0
0
INPUT CURRENT (mA)
100
200
300
400
50 100 150 200
3485 G08
250 300
2.5V
3.6V
4.2V
V
OUT
(V)
0
0
INPUT CURRENT (mA)
100
300
400
500
200
900
3485 G09
200
100
50
250 300
150
600
700
800
2.5V
3.6V
4.2V
LT3485-0/LT3485-1/
LT3485-2/LT3485-3
5
34850123fb
LT3485-1 Output Voltage
LT3485-0 Output Voltage
LT3485-3 Efficiency
LT3485-0 Efficiency LT3485-1 Efficiency LT3485-2 Efficiency
LT3485-2 Output Voltage LT3485 Switch Current Limits
LT3485-3 Output Voltage
V
OUT
(V)
50
40
EFFICIENCY (%)
50
60
70
80
90
100
150 200 250
3485 G10
300
2.5V
3.6V
4.2V
V
OUT
(V)
50
40
EFFICIENCY (%)
50
60
70
80
90
100
150 200 250
3485 G11
300
2.5V
3.6V
4.2V
V
OUT
(V)
50
40
EFFICIENCY (%)
50
60
70
80
90
100
150 200 250
3485 G12
300
2.5V
3.6V
4.2V
V
OUT
(V)
50
40
EFFICIENCY (%)
50
60
70
80
90
100
150 200 250
3485 G13
300
2.5V
3.6V
4.2V
V
IN
(V)
2
317
V
OUT
(V)
318
319
320
321
322
3
456
3485 G14
78
–40°C
25°C
85°C
V
IN
(V)
2
317
V
OUT
(V)
318
319
320
321
322
3
456
3485 G15
78
–40°C
25°C
85°C
V
IN
(V)
2
322
V
OUT
(V)
323
324
325
326
328
327
3
456
3485 G16
78
–40°C
25°C
85°C
V
IN
(V)
2
317
V
OUT
(V)
318
319
320
321
322
3
456
3485 G17
78
–40°C
25°C
85°C
TEMPERATURE (°C)
–40 –20
0
CURRENT LIMIT (mA)
800
2000
0
40
60
3485 G18
400
1600
1200
20
80
100
LT3485-3
LT3485-0
LT3485-2
LT3485-1
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LT3485-0 curves use the circuit of Figure 8, LT3485-1
curves use the circuit of Figure 9, LT3485-2 use the circuit of Figure 10 and LT3485-3 use the circuit of Figure 11 unless otherwise noted.
LT3485-0/LT3485-1/
LT3485-2/LT3485-3
6
34850123fb
LT3485-1 Switching Waveform
LT3485-2 Switching Waveform
LT3485-3 Switching Waveform
LT3485-0 Switching Waveform
LT3485-3 Switching Waveform
LT3485-2 Switching Waveform
LT3485-1 Switching Waveform
LT3485-0/LT3485-1/LT3485-2/
LT3485-3 Switch Breakdown
Voltage
LT3485-0 Switching Waveform
V
SW
10V/DIV
1µs/DIVV
IN
= 3.6V
V
OUT
= 100V
3485 G19
I
PRI
1A/DIV
V
SW
10V/DIV
1µs/DIVV
IN
= 3.6V
V
OUT
= 100V
3485 G20
I
PRI
1A/DIV
V
SW
10V/DIV
1µs/DIVV
IN
= 3.6V
V
OUT
= 100V
3485 G21
I
PRI
1A/DIV
V
SW
10V/DIV
1µs/DIVV
IN
= 3.6V
V
OUT
= 300V
3485 G23
I
PRI
1A/DIV
V
SW
10V/DIV
1µs/DIVV
IN
= 3.6V
V
OUT
= 300V
3485 G24
I
PRI
1A/DIV
V
SW
10V/DIV
1µs/DIVV
IN
= 3.6V
V
OUT
= 300V
3485 G25
I
PRI
1A/DIV
V
SW
10V/DIV
1µs/DIV
3485 G26
I
PRI
2A/DIV
V
IN
= 3.6V
V
OUT
= 300V
SWITCH VOLTAGE (V)
0 102030405060708090100
SWITCH CURRENT (mA)
3485 G27
10
9
8
7
6
5
4
3
2
1
0
T = –40°C
T = 25°C
T = 85°C
SW PIN IS RESISTIVE UNTIL BREAKDOWN
VOLTAGE DUE TO INTEGRATED
RESISTORS. THIS DOES NOT INCREASE
QUIESCENT CURRENT OF PART
V
IN
= V
CHARGE
= 5V
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LT3485-0 curves use the circuit of Figure 8, LT3485-1
curves use the circuit of Figure 9, LT3485-2 use the circuit of Figure 10 and LT3485-3 use the circuit of Figure 11 unless otherwise noted.
V
SW
10V/DIV
1µs/DIV
3485 G22
I
PRI
2A/DIV
V
IN
= 3.6V
V
OUT
= 100V
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LT3485EDD-2#PBF

Mfr. #:
Buy LT3485EDD-2#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Photoflash Cap Chrs w/ Out V Mon & Int
Lifecycle:
New from this manufacturer.
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