LT3493-3 LINER [Linear Technology], LT3493-3 Datasheet - Page 4

• Manufacturer Part Number: LT3493-3
• Manufacturer: LINER [Linear Technology]

LT3493-3
4
TYPICAL PERFOR A CE CHARACTERISTICS
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
800
780
760
740
720
700
680
660
640
620
600
–50
8
5
Switching Frequency
Maximum Load Current,
V
Maximum Load Current,
V
OUT
OUT
–25
12
= 3.3V, L = 10µH
= 5V, L = 8.2µH
10
TEMPERATURE (°C)
0
16
TYPICAL
15
V
V
TYPICAL
IN
IN
25
(V)
(V)
20
MINIMUM
20
MINIMUM
50
24
W
25
75
3493-3 G21
3493-3 G09
3493-3 G04
28
U
100
30
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
250
200
550
500
450
400
350
300
150
100
800
700
600
500
400
300
200
100
50
0
0
8
Switch Voltage Drop
0
Maximum Load Current,
V
0
Frequency Foldback
OUT
0.2
100
= 5V, L = 33µH
12
0.4
200
FEEDBACK VOLTAGE (mV)
SWITCH CURRENT (A)
0.6
16
300
T
0.8 1.0
V
A
TYPICAL
IN
400
= 25°C
(V)
20
T
500
A
MINIMUM
= 85°C
1.2
24
T
600
A
1.4
= –40°C
700
1.6 1.8
3493-3 G22
3493-3 G06
3493-3 G11
28
T
A
800
= 25°C unless otherwise noted.
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
7.0
6.9
6.8
6.7
6.6
6.5
6.4
6.3
6.2
6.1
6.0
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–50
5
Maximum Load Current,
V
Soft-Start
0
Undervoltage Lockout
OUT
0.25
–25
= 3.3V, L = 4.7µH
10
0.50
SHDN PIN VOLTAGE (V)
TEMPERATURE (°C)
0
0.75
TYPICAL
15
V
IN
25
1
(V)
20
1.25
50
MINIMUM
1.50 1.75
25
75
3493-3 G05
3493-3 G07
3493-3 G13
3493-3f
100
30
2