lt3080-1 Linear Technology Corporation, lt3080-1 Datasheet - Page 6

• Manufacturer Part Number: lt3080-1
• Description: Parallelable 1.1a Adjustable Single Resistor Low Dropout Regulator
• Manufacturer: Linear Technology Corporation

LT3080-1
TYPICAL PERFORMANCE CHARACTERISTICS
6
100
25
20
15
10
90
80
70
60
50
40
30
20
10
5
0
0
10
*SEE NOTE 9 IN ELECTRICAL
0
V
Ripple Rejection - Single Supply
CHARACTERISTICS TABLE
V
C
CONTROL
IN
OUT
I
INPUT-TO-OUTPUT DIFFERENTIAL (V)
LOAD
I
= V
LOAD
6
= 2.2μF CERAMIC
100
CONTROL
I
LOAD
= 1.1A
= 1mA
Pin Current
12
= 1.1A
FREQUENCY (Hz)
76
80
79
78
77
75
74
73
72
71
70
= V
1k
DEVICE IN
CURRENT LIMIT
–50
Ripple Rejection (120Hz)
OUT (NOMINAL)
SINGLE SUPPLY OPERATION
V
RIPPLE = 500mV
I
C
18
LOAD
IN
SET
–25
RIPPLE = 50mV
= V
10k
= 0.1μF, C
= 1.1A
OUT(NOMINAL)
24
I
LOAD
0
TEMPERATURE ( C)
100k
+ 2V
= 100mA
OUT
25
30
P-P
30801 G19
30801 G22
P–P
= 2.2μF
, f=120Hz
50
+ 2V
1M
36*
75
100 125 150
100
30
25
20
15
10
80
70
60
50
40
30
20
10
90
5
0
0
30801 G25
10
V
0
Ripple Rejection - Dual Supply
- V
CONTROL
V
V
V
V
C
RIPPLE = 50mV
CONTROL
IN
IN
CONTROL
OUT
CONTROL
– V
= V
0.2
= 2.2μF CERAMIC
100
OUT
OUT (NOMINAL)
– V
= V
I
= 1V
Pin Current
LOAD
LOAD CURRENT (A)
0.4
FREQUENCY (Hz)
OUT
Pin
OUT (NOMINAL)
T
P–P
J
1k
= 1.1A
= –50°C
= 2V
T
J
0.6
= 125°C
+ 1V
10k
0.8
+2V
I
LOAD
100
10k
10
1k
T
1
10
J
100k
Noise Spectral Density
= 25°C
= 100mA
1.0
30801 G20
30801 G23
100
1.2
1M
FREQUENCY (Hz)
1k
100
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
80
70
60
50
40
30
20
10
90
0
0
10
0
Residual Output Voltage with
Less Than Minimum Load
Ripple Rejection - Dual Supply
- IN Pin
V
V
RIPPLE = 50mV
C
I
SET PIN = 0V
V
LOAD
IN
CONTROL
OUT
IN
= V
10k
= 2.2μF CERAMIC
= 1.1A
100
V
OUT (NOMINAL)
IN
= V
= 10V
30801 G26
OUT (NOMINAL)
FREQUENCY (Hz)
P–P
100k
1k
R
TEST
1k
100
10
1.0
0.1
1k
+ 1V
R
TEST
V
V
(Ω)
10k
OUT
IN
= 5V
+2V
V
100k
IN
= 20V
30801 G21
30801 G24
30801f
1M
2k