Datasheet

LT3009 Series
9
3009fc
SHDN PIN INPUT CURRENT (nA)
300
400
500
200
100
250
350
450
150
50
0
3009 G16
SHDN PIN VOLTAGE (V)
4 8 12 16 2020 6 10 14 18
SHDN Pin Thresholds
SHDN Pin Input Current SHDN Pin Input Current
Current Limit
0
200
600
400
800
1000
1200
1400
1600
TEMPERATURE (°C)
SHDN PIN INPUT CURRENT (nA)
3009 G17
–50 –25 0 25 50 75 100 125 150
V
SHDN
= 20V
0
10
30
20
40
50
60
70
TEMPERATURE (°C)
CURRENT LIMIT (mA)
3009 G18
–50 –25 0 25 50 75 100 125 150
V
IN
= 1.6V
V
IN
= 20V
0
0.2
0.6
0.4
0.8
1.0
1.2
1.4
TEMPERATURE (°C)
3009 G15
–50 –25 0 25 50 75 100 125 150
SHDN PIN THRESHOLD VOLTAGE (V)
OFF TO ON
ON TO OFF
Reverse Output Current
Input Ripple Rejection
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, unless otherwise noted.
0
5
15
10
20
25
30
35
40
45
50
TEMPERATURE (°C)
REVERSE OUTPUT CURRENT (μA)
3009 G19
OUT
ADJ
–50 –25 0 25 50 75 100 125 150
OUT = ADJ = 1.2V
IN = SHDN = GND
FREQUENCY (Hz)
0
INPUT RIPPLE REJECTION (dB)
10
30
40
50
90
20
60
70
80
3009 G20
4.7μF
1μF
10 100 1k 10k 100k 1M
V
IN
= 2V + 50mV
RMS
V
OUT
= 600mV
I
LOAD
= 20mA