LT1118 Datasheet, PDF (4/8 Pages) Linear Technology – Low IQ, Low Dropout, 800mA, Source and Sink Regulators Adjustable and Fixed 2.5V, 2.85V, 5V Output

LT1118/LT1118-2.5
LT1118-2.85/LT1118-5
TYPICAL PERFORMANCE CHARACTERISTICS
Dropout Voltage vs Output Current
1.4
1.2
T_J = 25°C
1
T_J = 75°C
0.8
T_J = 125°C
0.6
0.4
0.2
0
0
200
400
600
800
OUTPUT CURRENT (mA)
1118 G01
Ripple Rejection vs Frequency
80
800mA
60
10mA
40
NO LOAD
20
SOURCING CURRENT
0
10
100
1k
10k
FREQUENCY (Hz)
100k
1118 G02
Ripple Rejection vs Frequency
80
400mA
60
10mA
40
NO LOAD
20
SINKING CURRENT
0
10
100
1k
10k
FREQUENCY (Hz)
100k
1118 G03
Output Impedance vs Frequency
10
NO CURRENT
1 _{100mA SOURCE}
10mA SOURCE
0.1
0.01
0.001
10²
100mA SINK
10mA SINK
10³
10⁴
10⁵
FREQUENCY (Hz)
10⁶
1118 G04
Feedback Current vs Temperature
450
400
350
300
250
200
150
100
50
0
–55 –35 –15 5 25 45 65 85 105 125
TEMP
1118 G05
Ripple Rejection vs Load Current
80
C_IN = C_LOAD = 1µF
60
40
20
0
–400 –200 0
200 400 600 800
LOAD CURRENT (mA)
1118 G06
4
Input Current vs
Output Sink Current
2000
1750
1500
1250
1000
750
500
250
0
0 50 100 150 200 250 300 350 400
OUTPUT SINK CURRENT (mA)
1118 G07
Ground Pin Current vs
Output Source Current
800
700
600
500
400
300
200
100
0
0
200
400
600
800
OUTPUT SOURCING CURRENT (mA)
1118 G08