LT3468 Linear Technology, LT3468 Datasheet - Page 3

• Manufacturer Part Number: LT3468
• Description: Photoflash Capacitor Charger in ThinSOT
• Manufacturer: Linear Technology

LT3468-1 curves use the circuit of Figure 2 unless otherwise noted.
CURRENT
AVERAGE
TYPICAL PERFOR A CE CHARACTERISTICS
50V/DIV
1A/DIV
INPUT
V
OUT
10
9
8
7
6
5
4
3
2
1
0
2
LT3468-1 Charge Time
T
LT3468 Charging Waveform
A
V
C
IN
OUT
= 25 C
C
= 3.6V
OUT
3
= 100 F
= 20 F
4
C
5
V
OUT
IN
1s/DIV
(V)
= 50 F
6
90
80
70
60
50
40
50
LT3468 Efficiency
7
T
A
V
W
IN
= 25 C
= 2.8V
100
8
3468 G04
3468 G01
U
9
150
V
V
IN
OUT
CURRENT
AVERAGE
0.5A/DIV
50V/DIV
= 3.6V
V
INPUT
V
IN
200
(V)
OUT
800
600
400
200
= 4.2V
0
LT3468-1 Charging Waveform
LT3468 Input Current
0
V
C
T
250
IN
OUT
A
= 3.6V
= 25 C
= 50 F
50
V
V
3468 G07
300
IN
IN
= 2.8V
= 3.6V
100
V
IN
V
1s/DIV
150
OUT
= 4.2V
(V)
200
90
80
70
60
50
40
50
LT3468-1 Efficiency
T
A
V
250
= 25 C
IN
= 2.8V
100
LT3468 curves use the circuit of Figure 1 and
3468 G02
3468 G05
300
150
V
V
IN
IN
V
OUT
= 3.6V
= 4.2V
200
(V)
400
300
200
100
10
LT3468/LT3468-1
9
8
7
6
5
4
3
2
1
0
0
2
LT3468-1 Input Current
0
LT3468 Charge Time
T
250
T
A
A
C
= 25 C
OUT
= 25 C
3
50
V
= 50 F
V
IN
3468 G08
300
IN
= 3.6V
4
= 2.8V
100
V
C
IN
OUT
= 4.2V
5
V
V
150
OUT
= 100 F
IN
(V)
(V)
6
200
7
250
8
3468 G03
3468 G06
34681i
300
3
9