Datasheet

LT3022/LT3022-1.2
LT3022-1.5/LT3022-1.8
8
3022fb
TYPICAL PERFORMANCE CHARACTERISTICS
SHDN Pin Input Current Current Limit Reverse Input Leakage Current
Reverse Input Leakage Current Reverse Output Current Input Ripple Rejection
GND Pin Current vs I
LOAD
SHDN Pin Threshold SHDN Pin Input Current
LOAD CURRENT (mA)
0
GND PIN CURRENT (mA)
24
21
18
15
12
9
6
3
0
800
3022 G14
200 400 600 1000700100 300 500 900
V
IN
= 1.6V
V
OUT
= 1.2V
V
SHDN
= 10V
T
J
= 25°C
TEMPERATURE (°C)
–50
0
SHDN PIN THRESHOLD (V)
0.1
0.3
0.4
0.5
1.0
0.7
0
50
75
3022 G15
0.2
0.8
0.9
0.6
–25
25
100
125
I
L
= 1mA
SHDN PIN VOLTAGE (V)
0
SHDN PIN INPUT CURRENT (µA)
3.0
4.0
5.0
8
3022 G16
2.0
1.0
2.5
3.5
4.5
1.5
0.5
0
21
43
6 7 9
5
10
T
J
= 25°C
TEMPERATURE (°C)
–50
SHDN PIN INPUT CURRENT (µA)
4
5
6
25 75
3022 G17
3
2
–25 0
50 100 125
1
0
V
IN
= 10V
V
SHDN
= 10V
TEMPERATURE (°C)
–50
0
CURRENT LIMIT (A)
0.3
0.9
1.2
1.5
3.0
2.1
0
50
75
3022 G18
0.6
2.4
2.7
1.8
–25
25
100
125
V
OUT
= 0V
V
IN
= 10V
V
IN
= 1.7V
INPUT VOLTAGE (V)
0
INPUT CURRENT (µA)
–8
–4
0
–8
3022 G19
–12
–16
–10
–6
–2
–14
–18
–20
–2–1
–4–3
–6 –7 –9
–5
–10
V
OUT
= 0V
V
SHDN
= 10V
T
J
= 25°C
TEMPERATURE (°C)
–50
–20
INPUT CURRENT (µA)
–18
–14
–12
–10
0
–6
0
50
75
3022 G20
–16
–4
–2
–8
–25
25
100
125
V
IN
= –10V
V
OUT
= 0V
V
SHDN
= 10V
TEMPERATURE (°C)
–50
REVERSE OUTPUT CURRENT (µA)
80
100
120
25 75
3022 G21
60
40
–25 0
50 100 125
20
0
V
IN
= 0V
V
OUT
= 1.2V
I
OUT
FLOWS INTO OUT PIN
I
IN
FLOWS OUT OF IN PIN
I
OUT
I
IN
FREQUENCY (Hz)
10 100
40
INPUT RIPPLE REJECTION (dB)
50
60
70
80
1k 10k 100k 1M 10M
3022 G22
30
20
10
0
90
100
C
OUT
= 47µF
C
OUT
= 10µF
V
IN
= 1.5V + 50mV
RMS
RIPPLE
V
OUT
= 0.5V
I
L
= 1A
T
J
= 25°C