Datasheet

LT3042
7
3042fb
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TYPICAL PERFORMANCE CHARACTERISTICS
Enable Pin Input Current Enable Pin Current Negative Enable Pin Current
GND Pin Current GND Pin Current GND Pin Current
Minimum Input Voltage EN/UV Turn-On Threshold EN/UV Pin Hysteresis
T
J
= 25°C, unless otherwise noted.
GND PIN CURRENT (mA)
10
1
9
7
5
3
8
6
4
2
0
3042 G16
V
IN
= 5V
R
SET
= 33.2kΩ
I
L
= 200mA
I
L
= 150mA
I
L
= 100mA
I
L
= 1mA
TEMPERATURE (°C)
–75 25 125–25 75
150
0 100–50 50
TEMPERATURE (°C)
–75
INPUT UVLO THRESHOLD (V)
2.00
1.75
1.25
0.75
0.25
1.50
1.00
0.50
0
25 125–25 75
3042 G19
150
0 100–50 50
RISING UVLO
FALLING UVLO
ENABLE PIN VOLTAGE (V)
0
EN/UV PIN CURRENT (µA)
10 186 14
3042 G22
20
8 164 122
V
IN
= 20V
5.0
0.5
4.5
3.5
2.5
1.5
4.0
3.0
2.0
1.0
0
150°C
125°C
25°C
–55°C
ENABLE PIN VOLTAGE (V)
0
EN/UV PIN CURRENT (µA)
10 186 14
3042 G23
20
8 164 122
V
IN
= 20V
V
IN
= 2V
10
1
9
7
5
3
8
6
4
2
0
ENABLE PIN VOLTAGE (V)
–20
EN/UV PIN CURRENT (µA)
–10 –2–14 –6
3042 G24
0
–12 –4–16 –8–18
V
IN
= 2V
0
–90
–10
–30
–50
–70
–20
–40
–60
–80
–100
150°C
125°C
25°C
–55°C
TEMPERATURE (°C)
–75
TURN-ON THRESHOLD (V)
1.32
1.30
1.26
1.22
1.28
1.24
1.20
1.18
25 125–25 75
3042 G20
150
0 100–50 50
V
IN
= 2V
V
IN
= 10V
TEMPERATURE (°C)
–75
EN/UV PIN HYSTERESIS (mV)
250
225
175
125
200
150
100
25 125–25 75
3042 G21
150
0 100–50 50
V
IN
= 2V
V
IN
= 10V
GND PIN CURRENT (mA)
8
1
7
5
3
6
4
2
0
OUTPUT CURRENT (mA)
0 75 17525 125
3042 G17
200
50 150100
V
IN
= 4.3V
R
SET
= 33.2kΩ
INPUT VOLTAGE (V)
0
GND PIN CURRENT (mA)
8
7
6
5
4
3
2
1
0
5 93 7
3042 G18
10
4 82 61
R
SET
= 33.2kΩ
R
L
= 16.5Ω
R
L
= 3.3kΩ
R
L
= 33Ω
R
L
= 66Ω
R
L
= 330Ω
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