Datasheet

LT3080
6
3080fc
Typical perForMance characTerisTics
TIME (µs)
0
OUTPUT VOLTAGE
DEVIATION (mV)LOAD CURRENT (mA)
–25
25
75
40
3080 G15
400
200
–50
0
50
300
100
0
105
2015
30 35 45
25
50
V
OUT
= 1.5V
C
SET
= 0.1µF
V
IN
= V
CONTROL
= 3V
C
OUT
= 10µF CERAMIC
C
OUT
= 2.2µF CERAMIC
Dropout Voltage
(Minimum IN Voltage)
Dropout Voltage (Minimum
V
CONTROL
Pin Voltage)
Dropout Voltage (Minimum
V
CONTROL
Pin Voltage)
Current Limit
Load Transient Response
TEMPERATURE (°C)
–50
MINIMUM IN VOLTAGE (V
IN
– V
OUT
) (mV)
200
300
150
3080 G10
100
0
0
50
100
–25
25
75
125
400
150
250
50
350
I
LOAD
= 1.1A
I
LOAD
= 500mA
I
LOAD
= 100mA
OUTPUT CURRENT (A)
0
MINIMUM CONTROL VOLTAGE (V
CONTROL
– V
OUT
) (V)
0.6
0.8
1.0
0.6
1.0
3080 G11
0.4
0.2
0
0.2 0.4 0.8
1.2
1.4
1.6
1.2
T
J
= 125°C
T
J
= –50°C
T
J
= 25°C
TEMPERATURE (°C)
–50
MINIMUM CONTROL VOLTAGE (V
CONTROL
– V
OUT
) (V)
0.8
1.2
150
3080 G12
0.4
0
0
50
100
–25
25
75
125
1.6
0.6
1.0
0.2
1.4
I
LOAD
= 1.1A
I
LOAD
= 1mA
Current Limit
TEMPERATURE (°C)
–50
CURRENT LIMIT (A)
0.8
1.2
150
3080 G13
0.4
0
0
50
100
–25
25
75
125
1.6
0.6
1.0
0.2
1.4
V
IN
= 7V
V
OUT
= 0V
INPUT-TO-OUTPUT DIFFERENTIAL (V)
0
CURRENT LIMIT (A)
0.6
0.8
1.0
18
30
3080 G14
0.4
0.2
0
6 12 24
1.2
1.4
1.6
36*
SOT-223, DD-PAK
AND TO-220
MSOP
AND
DFN
T
J
= 25°C
*SEE NOTE 9 IN ELECTRICAL
CHARACTERISTICS TABLE
TIME (µs)
0
OUTPUT VOLTAGE
DEVIATION (mV)LOAD CURRENT (A)
–50
50
150
40
3080 G16
1.2
0.6
–100
0
100
0.9
0.3
0
105
2015
30 35 45
25
50
V
IN
= V
CONTROL
= 3V
V
OUT
= 1.5V
C
OUT
= 10µF CERAMIC
C
SET
= 0.1µF
Load Transient Response Line Transient Response
TIME (µs)
0
IN/CONTROL VOLTAGE (V)
OUTPUT VOLTAGE
DEVIATION (mV)
–25
25
75
80
3080 G17
6
4
–50
0
50
5
3
2
2010
4030
60 70 90
50
100
V
OUT
= 1.5V
I
LOAD
= 10mA
C
OUT
= 2.2µF
CERAMIC
C
SET
= 0.1µF
CERAMIC
Turn-On Response
TIME (µs)
0
OUTPUT VOLTAGE (V) INPUT VOLTAGE (V)
1
3
5
8
3080 G18
2.0
1.0
0
2
4
1.5
0.5
0
21
43
6 7 9
5
10
R
SET
= 100k
C
SET
= 0
R
LOAD
= 1Ω
C
OUT
= 2.2µF CERAMIC