Datasheet

LT3045
7
Rev. B
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TYPICAL PERFORMANCE CHARACTERISTICS
EN/UV Pin Current EN/UV 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.
V
IN
= 5V
R
SET
= 33.2k
I
L
= 500mA
I
L
= 300mA
I
L
= 100mA
I
L
= 1mA
TEMPERATURE (°C)
–75
–50
–25
0
25
50
75
100
125
150
0
2
4
6
8
10
12
14
16
18
20
GND PIN CURRENT (mA)
3045 G16
V
IN
= 4.3V
R
SET
= 33.2k
150°C
125°C
25°C
–55°C
OUTPUT CURRENT (mA)
0
50
100
150
200
250
300
350
400
450
500
0
2
4
6
8
10
12
14
16
18
20
22
GND PIN CURRENT (mA)
3045 G17
R
SET
= 33.2k
R
L
= 6.6Ω
R
L
= 11Ω
R
L
= 33Ω
R
L
= 330Ω
R
L
= 3.3kΩ
INPUT VOLTAGE (V)
0
1
2
3
4
5
6
7
8
9
10
0
2
4
6
8
10
12
14
16
18
GND PIN CURRENT (mA)
3045 G18
RISING UVLO
FALLING UVLO
TEMPERATURE (°C)
–75
–50
–25
0
25
50
75
100
125
150
0
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
INPUT UVLO THRESHOLD (V)
3045 G19
V
IN
= 2V
V
IN
= 10V
TEMPERATURE (°C)
–75
–50
–25
0
25
50
75
100
125
150
1.18
1.20
1.22
1.24
1.26
1.28
1.30
1.32
TURN-ON THRESHOLD (V)
3045 G20
V
IN
= 2V
V
IN
= 10V
TEMPERATURE (°C)
–75
–50
–25
0
25
50
75
100
125
150
50
65
80
95
110
125
140
155
170
185
200
EN/UV PIN HYSTERESIS (mV)
3045 G21
V
IN
= 20V
150°C
125°C
25°C
–55°C
ENABLE PIN VOLTAGE (V)
0
2
4
6
8
10
12
14
16
18
20
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
EN/UV PIN CURRENT (µA)
3045 G22
V
IN
= 20V
V
IN
= 2V
ENABLE PIN VOLTAGE (V)
0
2
4
6
8
10
12
14
16
18
20
0
1
2
3
4
5
6
7
8
9
10
EN/UV PIN CURRENT (µA)
3045 G23
V
IN
= 2V
150°C
125°C
25°C
–55°C
ENABLE PIN VOLTAGE (V)
–20
–18
–16
–14
–12
–10
–8
–6
–4
–2
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
EN/UV PIN CURRENT (µA)
3045 G24
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