Datasheet

LT3030
9
3030fa
For more information www.linear.com/LT3030
Typical perForMance characTerisTics
Output Noise Spectral Density
Output Noise Spectral Density
RMS Output Noise vs Bypass
Capacitor
OUT1 RMS Output Noise
vs Output Current (10Hz to 100kHz)
OUT2 RMS Output Noise
vs Output Current (10Hz to 100kHz)
OUT1 or OUT2 Load Regulation OUT1 or OUT2 Line Regulation
T
J
= 25°C, unless otherwise noted.
Start-Up Time from Shutdown
C
BYP
= 0pF
Start-Up Time from Shutdown
C
BYP
= 0.01µF
TEMPERATURE (°C)
–75
LOAD REGULATION (mV)
10
8
6
4
2
0
–2
–4
–6
–8
–10
50–50
3030 G37
1750 25–25 150100 12575
∆I
L
= 1mA TO FULL LOAD
TEMPERATURE (°C)
–75
LINE REGULATION (mV)
5
4
2
3
1
0
–2
–4
–1
–3
–5
50–50
3030 G38
1750 25–25 150100 12575
∆V
IN
= 2V TO 20V
FREQUENCY (kHz)
0.01
OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz)
10
1
0.1
0.01
0.1
3030 G39
100101
V
OUT
= 5V
V
OUT
= V
ADJ
T
J
= 25°C
C
OUT
= 10µF
C
BYP
= 0
I
L
= FULL LOAD
FREQUENCY (Hz)
0.01
OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz)
10
1
0.1
0.01
0.1
3030 G40
100101
V
OUT
= 5V
C
BYP
= 0.01µF
V
OUT
= V
ADJ
C
BYP
= 1000pF
C
BYP
= 100pF
T
J
= 25°C
C
OUT
= 10µF
I
L
= FULL LOAD
C
BYP
(pF)
10
OUTPUT NOISE (µV
RMS
)
160
140
120
100
20
40
60
80
0
3030 G41
100001000100
OUTPUT2
OUTPUT1
OUTPUT2
OUTPUT1
V
OUT
= 5V
V
OUT
= 1.220V
T
J
= 25°C
C
OUT
= 10µF
I
L
= FULL LOAD
f
BW
= 10Hz TO 100kHz
OUTPUT CURRENT (mA)
0.01
OUTPUT NOISE (µV
RMS
)
160
140
120
100
20
40
60
80
0
3030 G42
10001001010.1
V
OUT1
= 5V
V
OUT1
= V
ADJ1
C
BYP1
= 10nF
V
OUT1
= V
ADJ1
C
BYP1
= 0
V
OUT1
= 5V
C
BYP1
= 0
T
J
= 25°C
C
OUT
= 10µF
1ms/DIV
SHDN
VOLTAGE
2V/DIV
3030 G44
V
IN
= 2.5V
C
IN
= 10µF
C
OUT
= 10µF
I
L
= FULL LOAD
T
J
= 25°C
V
OUT
= 1.5V
V
OUT
1V/DIV
1ms/DIV
SHDN
VOLTAGE
2V/DIV
3030 G45
V
IN
= 2.5V
C
IN
= 10µF
C
OUT
= 10µF
I
L
= FULL LOAD
T
J
= 25°C
V
OUT
= 1.5V
V
OUT
1V/DIV
OUTPUT CURRENT (mA)
0.01
OUTPUT NOISE (µV
RMS
)
160
140
120
100
20
40
60
80
0
3030 G43
10001001010.1
V
OUT2
= 5V
V
OUT2
= V
ADJ2
C
BYP2
= 10nF
V
OUT2
= V
ADJ2
C
BYP2
= 0
V
OUT2
= 5V
C
BYP2
= 0
T
J
= 25°C
C
OUT
= 10µF