LTC2909 データシートの表示（PDF） - Linear Technology
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LTC2909 Datasheet PDF : 16 Pages
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LTC2909
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted
Shunt Regulation Voltage
vs Temperature
7.0
6.8
ICC = 10mA
6.6
ICC = 1mA
6.4
ICC = 100μA
6.2
6.0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2909 G10
⎯R⎯S⎯T Output Voltage vs VCC
0.4
0.3
VCC
0.2
RST WITH 10k PULL-UP
0.1
RST WITH 100k PULL-UP
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
SUPPLY VOLTAGE, VCC (V)
2909 G13
⎯R⎯S⎯T VOL vs I⎯R⎯S⎯T
1.0
VCC = 3V
NO PULL-UP R
0.8
TA = 125°C
TA = 25°C
0.6
0.4
TA = –40°C
0.2
0
0 5 10 15 20 25 30
IRST (mA)
1635 G07
Shunt Regulation Voltage
vs Supply Current
7.0
TA = 25°C
6.8
6.6
⎯R⎯S⎯T Output Voltage vs VCC
5
ADJ1 = 0.55
ADJ2 = 0.45
4 SEL = OPEN
10k PULL-UP R TO VCC
3
6.4
6.2
6.0
0.01
0.1
1
10
SUPPLY CURRENT, ICC (mA)
100
2909 G11
⎯R⎯S⎯T Pull-Down Current vs VCC
6
ADJ1 = 0.55
ADJ2 = 0.55
5 SEL = OPEN
4
RST AT 150mV
3
2
LTC2909-2.5
1
LTC2909-3.3
LTC2909-5
0
0
1
2
3
4
5
SUPPLY VOLTAGE, VCC (V)
2909 G12
⎯R⎯S⎯T Pull-Down Current vs VCC
1
RST AT 150mV
0.1
RST AT 50mV
0.01
2
0.001
1
RST AT 50mV
0
0
1
2
3
4
5
SUPPLY VOLTAGE, VCC (V)
2909 G14
ISEL vs Temperature
–20
SEL = GND
–18
0.0001
0
0.2
0.4 0.6 0.8
1
SUPPLY VOLTAGE, VCC (V)
2909 G15
ISEL vs Temperature
20
SEL = VCC
18
–16
16
–14
14
–12
12
–10
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2909 G17
10
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2909 G18
2909fb
5
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