Linear Technology LT3081, Datasheet

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LT3081
9
3081fc
For more information www.linear.com/LT3081
Noise Spectral Density
10Hz to 100kHz
Output Voltage Noise
Ripple Rejection (10kHz)
Ripple Rejection (1MHz)
TEMPERATURE (°C)
–50
45
RIPPLE REJECTION (dB)
47
51
53
55
65
59
0
50
75
3081 G34
49
61
63
57
–25 25
100 125 150
V
IN
= V
OUT(NOMINAL)
+ 2V
RIPPLE = 500mV
P-P
f = 10kHz
I
LOAD
= 0.1A
C
OUT
= 2.2µF
C
SET
= 0.1µF
TEMPERATURE (°C)
–50
RIPPLE REJECTION (dB)
18
22
150
3081 G36
14
10
0
50
100 –25 25
75
125
26
16
20
12
24
V
IN
= V
OUT(NOMINAL)
+ 2V
RIPPLE = 200mV
P-P
f = 1MHz
I
LOAD
= 0.1A
C
OUT
= 2.2µF CERAMIC
C
SET
= 0.1µF
FREQUENCY (Hz)
10
10
ERROR AMPLIFIER NOISE
SPECTRAL DENSITY (nV/√
Hz
)
REFERENCE CURRENT NOISE
SPECTRAL DENSITY (pA/√
Hz
)
100
1000
1
10
100
1k 100 10k 100k
3981 G37
TIME 1ms/DIV
V
OUT
50µV/DIV
3081 G38
C
SET
= 0.1µF
C
OUT
= 4.7µF
I
LOAD
= 1.5A
NOISE INDEPENDENT
OF OUTPUT VOLTAGE
Typical perForMance characTerisTics
T
J
= 25°C unless otherwise specified.