3021 データシートの表示（PDF） - Linear Technology
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3021 Datasheet PDF : 16 Pages
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LT3021/LT3021-1.2/
LT3021-1.5/LT3021-1.8
TYPICAL PERFOR A CE CHARACTERISTICS
GND Pin Current
8
7
RL = 2.4Ω
IL = 500mA
6
VOUT = 1.2V
TJ = 25°C
5
RL = 4.8Ω
4
3
IL = 250mA
RL = 24Ω
IL = 50mA
RL = 120Ω
IL = 10mA
RL = 12Ω
2
IL = 100mA
1
RL = 1.2k, IL = 1mA
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
3021 G06
GND Pin Current vs ILOAD
10 VSHDN = 10V
9
8
7
6
5
4
3
2
1
0
0
100 200 300 400 500
LOAD CURRENT (mA)
3021 G07
SHDN Pin Input Current
5 VSHDN = 10V
4
3
2
1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3021 G10
GND Pin Current
8
7
RL = 3Ω
IL = 500mA
6
VOUT = 1.5V
TJ = 25°C
5
4
3
RL = 6Ω
IL = 250mA
RL = 30Ω
IL = 50mA
RL = 150Ω
IL = 10mA
RL = 15Ω
2
IL = 100mA
1
RL = 1.5k, IL = 1mA
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
3021 G24
SHDN Pin Threshold
1.0 IL = 1mA
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3021 G08
Current Limit
2.0
VOUT = 0V
1.8
1.6
VIN = 10V
1.4
1.2
VIN = 1.7V
1.0
0.8
0.6
0.4
0.2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3021 G12
GND Pin Current
9
8
RL = 3.6Ω
7
IL = 500mA
6
VOUT = 1.8V
TJ = 25°C
5
RL = 7.2Ω
4
IL = 250mA RL = 36Ω
IL = 50mA RL = 180Ω
3
RL = 18Ω
IL = 10mA
2
IL = 100mA
1
RL = 1.8k, IL = 1mA
0
0 1 2 3 4 5 6 7 8 9 10
INPUT VOLTAGE (V)
3021 G25
SHDN Pin Input Current
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
01 23 45 67 8
SHDN PIN VOLTAGE (V)
9 10
3021 G09
Reverse Output Current
500 VIN = 0V
450 VOUT = 1.2V
400
350
300
250
200
150
100
50
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
3021 G13
3021fa
6
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