lt3083idf Linear Technology Corporation, lt3083idf Datasheet - Page 7

• Manufacturer Part Number: lt3083idf
• Description: Lt3083 - Adjustable 3a Single Resistor Low Dropout Regulator
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
–10
–20
10
80
70
60
50
40
30
20
10
0
7
6
5
4
3
0
0
V
0
Line Transient Response
CONTROL
IN-TO-OUT DIFFERENTIAL (V
I
20 40
LOAD
2
I
LOAD
= 1.5A
4
= 3A
Pin Current
60
–100
6
150
100
–50
1.0
0.5
50
0
0
80
0
TIME (μs)
8
Load Transient Response
V
V
V
C
100 120
IN
CONTROL
OUT
SET
V
I
C
C
20 40
LOAD
10
OUT
OUT
SET
= 2V
= 0.1μF
= 1V
DEVICE IN
CURRENT LIMIT
= 0.1μF
= 1V
= 10μF CERAMIC
= 10mA
12
IN
= 3V
140 160
60
– V
14
OUT
80
TIME (μs)
C
) (V)
16
ΔI
180
3083 G22
OUT
100 120
3083 G19
LOAD
C
OUT
= 10μF CERAMIC
18
200
= 100mA TO 1A
= 22μF CERAMIC
140 160
–0.5
70
60
50
40
30
20
10
1.0
0.5
0
180
3083 G17
6
5
4
3
2
1
0
0
0
V
0
V
V
Turn-On Response
CONTROL
CONTROL
IN
200
T
J
– V
5
= 25°C
0.5
OUT
10
– V
= 1V
Pin Current
LOAD CURRENT (A)
15
OUT
1
= 2V
20
TIME (μs)
T
1.5
J
25 30
R
C
R
C
= –50°C
SET
OUT
SET
LOAD
–150
T
250
150
–50
= 0
J
= 20k
= 10μF CERAMIC
50
2
= 125°C
= 0.33Ω
4
2
0
35 40
0
Load Transient Response
V
V
V
C
IN
CONTROL
OUT
SET
2.5
20 40
= 2V
T
= 0.1μF
3083 G23
= 1V
A
45
3083 G20
= 25°C, unless otherwise noted.
= 3V
3
60
50
80
ΔI
TIME (μs)
LOAD
C
100 120
OUT
–0.5
100
600
500
400
300
200
1.0
0.5
= 500mA TO 3A
0
4
3
2
1
0
0
= 22μF CERAMIC
0
0
Turn-On Response
Residual Output Voltage with
Less Than Minimum Load
140 160
V
2
IN
= 5V
V
4
IN
500
180
= 10V
3083 G18
6
V
IN
200
SET PIN = 0V
8
TIME (ms)
R
SET
1000
10 12
R
C
R
C
V
SET
SET
LOAD
OUT
IN
(Ω)
= 20V
ADD 1N4148 FOR
LT3083
= 20k
= 0.1μF
= 10μF CERAMIC
= 1Ω
14 16
1500
R
TEST
V
R
< 1k
18
3083 G21
OUT
3083 G24
TEST
7
3083f
2000
20