Datasheet

5
LT1020
sn1020 1020fcs
RIPPLE FREQUENCY (Hz)
10
RIPPLE REJECTION (dB)
70
65
60
55
50
45
40
35
30
100 1k
1020 G10
10k 100k
I
OUT
= 100mA
I
OUT
= 10mA
I
OUT
= 1mA
V
IN
= 100VDC, 1V
P-P
V
OUT
= 5V
C
OUT
= 10µF
Regulator Ripple Rejection
REGULATOR INPUT/OUTPUT DIFFERENTIAL (V)
1
SUPPLY CURRENT (mA)
10
1
0.1
0.01
5
1020 G11
I
OUT
= 100mA
10 15 20 25
I
OUT
= 1mA
I
OUT
= 10mA
V
OUT
= 5V
T
J
= –55°C TO 125°C
Supply Current
REGULATOR OUTPUT CURRENT (mA)
0.1
FEEDBACK PIN CURRENT (nA)
40
35
30
25
20
15
10
5
0
110
1020 G15
100 1000
T
J
= 125°C
T
J
= 25°C
T
J
= –55°C
Supply Current at Dropout
Feedback Pin Current
Comparator Input Bias Current
COMMON MODE VOLTAGE (V)
REFERRED TO PIN 9 (GND)
–1.0
INPUT BIAS CURRENT (nA)
100
90
80
70
60
50
40
30
20
10
0
0.6
1020 G14
–0.6
–0.2
0.2
1.0
T
J
= 125°C
GND
T
J
= 25°C
T
J
= –55°C
Reference Regulation
REGULATOR INPUT/OUTPUT DIFFERENTIAL (V)
0
DROPOUT DETECTOR CURRENT (µA)
1000
100
10
1
0.1
1020 G08
I
OUT
= 100mA
0.2 0.3 0.4 0.60.5
I
OUT
= 25mA
I
OUT
= 1mA
I
OUT
= 5mA
REGULATOR OUTPUT CURRENT (mA)
0.1
DROPOUT DETECTOR CURRENT (µA)
1
10
100
10 1000
1020 G07
0.01
100
V
DIFF
= 500mV
V
DIFF
= 1V
Dropout Detector Current Dropout Detector Current
TEMPERATURE (°C)
90
1
10
100
110
130
1020 G09
MINIMUM LOAD CURRENT (µA)
70
15080 100
120
140
Regulator Minimum Load Current
REGULATOR INPUT/OUTPUT DIFFERENTIAL (V)
0
SUPPLY CURRENT (mA)
10
1
0.1
0.01
0.1
1020 G12
I
OUT
= 100mA
0.2 0.3 0.4 0.60.5
I
OUT
= 10mA
I
OUT
= 1mA
T
J
= –55°C TO 125°C
REFERENCE OUTPUT CURRENT (mA)
–1.5
REFERENCE VOLTAGE CHANGE (mV)
–1.0 0
1.0
1.5
1020 G13
4
3
2
1
0
–1
–2
–3
–4
–0.5
0.5
TYPICAL PERFOR A CE CHARACTERISTICS
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