Datasheet

LT3090
6
3090fa
For more information www.linear.com/LT3090
Typical perForMance characTerisTics
Dropout Voltage GND Pin Current GND Pin Current Entering Dropout
Minimum Input Voltage SHDN Turn-On Threshold SHDN Pin Hysteresis
Quiescent Current
Typical Dropout Voltage
Guaranteed Dropout Voltage
OUTPUT CURRENT (mA)
0
GND PIN CURRENT (mA)
16
12
14
8
6
4
2
10
0
300 400 500
3090 G14
600100 200
V
IN
= –3.5V
V
OUT
= –3V
–55°C
25°C
125°C
150°C
INPUT VOLTAGE (V)
–2.5 –2.6 –2.7 –2.8 –2.9 –3 –3.1 –3.2 –3.3 –3.4 –3.5
GND PIN CURRENT (mA)
12
14
8
6
4
2
10
0
3090 G15
V
OUT(NOMINAL)
= –3V
I
L
= 300mA
I
L
= 100mA
I
L
= 1mA
I
L
= 600mA
TEMPERATURE (°C)
–75 –50 –25 0 25 50 75 100 125 150
MINIMUM INPUT VOLTAGE (V)
–1.8
–2.0
–1.4
–1.2
–1.0
–0.8
–0.6
–0.4
–0.2
–1.6
0
3090 G16
R
SET
= 25kΩ
I
L
= 1mA
TEMPERATURE (°C)
–75 –50 –25 0 25 50 75 100 125 150
SHDN PIN HYSTERESIS (V)
0.30
0.15
0.20
0.10
0.05
0.25
0
3090 G18
V
IN
= –1.9V
POSITIVE SHDN HYSTERESIS
NEGATIVE SHDN HYSTERESIS
T
J
= 25°C, unless otherwise noted.
TEMPERATURE (°C)
–75
QUIESCENT CURRENT (mA)
1.2
0.8
0.6
1.0
0.4
0.2
0
25–25 75 100 125
3090 G10
1500–50 50
R
L
= 125kΩ (10µA)
V
OUT
= –1.25V
V
IN
= –1.9V
V
SHDN
= V
IN
V
SHDN
= 0V
TEMPERATURE (°C)
–75
DROPOUT VOLTAGE (mV)
450
350
300
400
200
150
100
50
250
0
25 50 75 100 125
3090 G13
150–25–50 0
I
L
= 600mA
I
L
= 300mA
I
L
= 1mA
I
L
= 100mA
OUTPUT CURRENT (mA)
0
DROPOUT VOLTAGE (mV)
450
350
300
400
200
150
100
50
250
0
400 500
3090 G11
600200100 300
–55°C
25°C
125°C
150°C
OUTPUT CURRENT (mA)
0
DROPOUT VOLTAGE (mV)
500
450
350
300
400
200
150
100
50
250
0
400 500
3090 G12
600200100 300
T
J
≤ 150°C
T
J
≤ 25°C
TEMPERATURE (°C)
–75
POSITIVE SHDN TURN-ON THERSHOLD (V)
NEGATIVE SHDN TURN-ON THRESHOLD (V)
1.300
1.275
1.250
1.225
1.200
1.175
1.150
–1.300
–1.275
–1.250
–1.225
–1.200
–1.175
–1.150
–25 75 125100
3090 G17
150250–50 50
V
IN
= –1.9V
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