3083 Просмотр технического описания (PDF) - Linear Technology
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3083 Datasheet PDF : 28 Pages
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LT3083
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted.
SET Pin Current
50.5
50.4
50.3
50.2
50.1
50.0
49.9
49.8
49.7
49.6
49.5
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3083 G01
Set Pin Current Distribution
N = 1052
49
49.5
50
50.5
51
SET PIN CURRENT DISTRIBUTION (µA)
3083 G02
Offset Voltage (VOUT – VSET)
1.0
0.8 ILOAD = 5mA
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3083 G03
Offset Voltage Distribution
N = 1052
–3 –2 –1 0
1
2
3
VOS DISTRIBUTION (mV)
3083 G04
Offset Voltage (VOUT – VSET)
1.00
ILOAD = 5mA
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
0
5
10
15
20
25
INPUT-TO-OUTPUT VOLTAGE (V)
3083 G05
Offset Voltage (VOUT – VSET)
0.25
0
–0.25
TJ = 25°C
–0.50
–0.75
TJ = 125°C
–1.00
–1.25
–1.50
–1.75
0
0.5 1 1.5 2 2.5 3
LOAD CURRENT (A)
3083 G06
Load Regulation
0
100
CHANGE IN OFFSET VOLTAGE (VOUT – VSET)
–0.2
50
–0.4
0
–0.6 CHANGE IN REFERENCE CURRENT
–50
–0.8
–100
–1.0
–150
–1.2
–200
–1.4 ∆ILOAD = 5mA TO 3A
VIN = VCONTROL = VOUT + 2V
–1.6
–50 –25 0 25 50 75
–250
–300
100 125 150
TEMPERATURE (°C)
3083 G07
Minimum Load Current
1.4
VIN = VCONTROL
1.2
1.0
VIN,CONTROL – VOUT = 23V
0.8
0.6
VIN,CONTROL – VOUT = 1.5V
0.4
0.2
Dropout Voltage, T/Q Packages
(Minimum IN Voltage)
400
350
TJ = 125°C
300
250
TJ = 25°C
200
150
TJ = –50°C
100
50
0
–50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
3083 G08
0
0 0.5 1 1.5 2 2.5 3
LOAD CURRENT (A)
3083 G09
3083fa
5
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