LT3020/LT3020-1.2/
LT3020-1.5/LT3020-1.8
TYPICAL PERFOR A CE CHARACTERISTICS
Input Ripple Rejection
100
90
80
RIPPLE REJECTION (dB)
70
60
50
40
30
20
V
IN
= 1.5V + 0.5V
P-P
RIPPLE AT f = 120Hz
10 V
OUT
= 0.5V
I
L
= 100mA
0
0
25
50
75 100 125
–50 –25
TEMPERATURE (°C)
3020 G15
MINIMUM INPUT VOLTAGE (V)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–50
–25
0
25
50
75
TEMPERATURE (°C)
100
125
LOAD REGULATION (mV)
Output Noise Spectral Density
OUTPUT NOISE SPECTRAL DENSITY (µV/√Hz)
10
V
OUT
= 1.2V
I
L
= 100mA
C
OUT
= 2.2µF
300
250
OUTPUT CURRENT SINK (mA)
1
OUTPUT NOISE (µV
RMS
)
0.1
0.01
10
100
1k
10k
FREQUENCY (Hz)
U W
100k
Minimum Input Voltage
1.1
1.0
0.9
I
L
= 100mA
1.0
0.8
0.6
0.4
0.2
0
–0.2
Load Regulation
∆I
L
= 1mA to 100mA
–0.4 V = 1.15V
IN
V
OUT
= 0.5V
–0.6
*LOAD REGULATION NUMBER REFERS
–0.8 TO CHANGE IN THE 200mV REFERENCE
VOLTAGE
–1.0
0
25
50
75 100
–50 –25
TEMPERATURE (°C)
125
3020 G16
3020 G17
Transient Response
V
OUT
50mV/DIV
I
OUT
100mA/DIV
50µs/DIV
I
OUT
= 10mA TO 100mA
V
OUT
= 1.5V
3020 G21
RMS Output Noise vs Load
Current (10Hz to 100kHz)
V
OUT
= 1.2V
C
OUT
= 2.2µF
18
16
14
12
10
8
6
4
2
No-Load Recovery Threshold
200
150
100
50
0
0.01
1M
3020 G18
0.1
1
10
LOAD CURRENT (mA)
100
3020 G19
0
0
5
10
15
OUTPUT OVERSHOOT (%)
20
3020 G20
sn3020 3020fas
7
LINER [ LINEAR TECHNOLOGY ]
