Datasheet

5
LT1021
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
Start-Up (Series Mode)
Ripple Rejection
INPUT VOLTAGE (V)
0
85
REJECTION (dB)
90
95
100
105
10 20
30
40
LT1021 G01
110
115
515
25
35
f = 150Hz
LT1021-5
LT1021-10
LT1021-7
TIME (µs)
3
OUTPUT VOLTAGE (V)
4
6
7
8
13
10
2
6
8
LT1021 G04
5
11
12
9
04
10
12
14
LT1021-10
LT1021-5
LT1021-7
V
IN
= 0V TO 12V
Output Voltage Noise Spectrum
OUTPUT CURRENT (mA)
0
INPUT/OUTPUT VOLTAGE (V)
1.2
1.6
16
1021 G03
0.8
0.4
0
4
8
12
20
1.0
1.4
0.6
0.2
14
2
6
10
18
T
J
= 125 °C
T
J
= –55 °C
T
J
= 25 °C
FREQUENCY (Hz)
100
NOISE VOLTAGE (nV/Hz)
200
250
350
400
10 1k 10k
LT1021 G06
0
100
300
150
50
LT1021-10
LT1021-5
LT1021-7
Ripple Rejection
FREQUENCY (Hz)
10
90
REJECTION (dB)
110
130
120
100
80
60
100 1k 10k
LT1021 G02
70
50
V
IN
= 15V
C
OUT
= 0
LT1021-5
LT1021-10
LT1021-7
Start-Up (Shunt Mode)
LT1021-7, LT1021-10
TIME (µs)
OUTPUT VOLTAGE (V)
9
10
11
48
LT1021 G05
8
7
02
61012
6
5
LT1021-10
LT1021-7
IN
GND
OUT
NC
1k
V
OUT
0V
V
OUT
+ 2V
BANDWIDTH (Hz)
10
8
RMS NOISE (µV)
12
16
14
10
6
2
100 1k 10k
LT1021 G07
4
0
C
OUT
= 0
FILTER = 1 POLE
f
LOW
= 0.1Hz
LT1021-10
LT1021-5
LT1021-7
Output Voltage Temperature Drift
LT1021-5
Output Voltage Noise
TEMPERATURE (°C)
–50
4.994
4.996
OUTPUT VOLTAGE (V)
5.000
5.006
0
50
75
LT1021 G08
4.998
5.004
5.002
–25
25
100
125
Load Regulation LT1021-5
OUTPUT CURRENT (mA)
–10
OUTPUT CHANGE (mV)
1
3
5
4
2
0
–2
–4
6
LT1021 G09
–1
–3
–5
–6–8 4 0 4 8
–2
2
10
V
IN
= 8V
SOURCING SINKING
Minimum Input/Output Differential
LT1021-7, LT1021-10