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

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

LT3493
TYPICAL PERFORMANCE CHARACTERISTICS
4
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
1.60
1.30
1.20
1.00
0.90
1.50
1.40
1.10
800
780
760
740
720
700
680
660
640
620
600
–50
8
5
Maximum Load Current,
V
Maximum Load Current,
V
Switching Frequency
OUT
OUT
–25
12
= 5V, L = 8.2μH
= 3.3V, L = 10μH
10
0
TEMPERATURE (°C)
16
25
TYPICAL
15
V
V
TYPICAL
IN
IN
50
20
(V)
(V)
MINIMUM
20
75
MINIMUM
24
100
25
125
28
3493 G04
3493 G21
3493 G09
150
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
0
Maximum Load Current,
V
Switch Voltage Drop
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
T
28
3493 G22
3493 G06
3493 G11
A
= 25°C unless otherwise noted.
800
1.60
1.50
1.40
1.30
1.20
1.10
1.00
0.90
4.00
3.90
3.80
3.70
3.60
3.50
3.40
3.30
3.20
3.10
3.00
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
–50
5
0
Maximum Load Current,
V
Undervoltage Lockout
Soft-Start
OUT
0.25
–25
= 3.3V, L = 4.7μH
10
0.50
0
SHDN PIN VOLTAGE (V)
TEMPERATURE (°C)
0.75
25
TYPICAL
15
V
IN
50
1
(V)
20
1.25
75
MINIMUM
1.50 1.75
100
25
125
3493 G05
3493 G08
3493 G13
3493fb
150
30
2