LTC1261L Ver la hoja de datos (PDF) - Linear Technology
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LTC1261L Datasheet PDF : 14 Pages
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LTC1261L
TYPICAL PERFORMANCE CHARACTERISTICS (See Test Circuits)
Output Voltage vs Output Current
0
– 0.25
TA = 25°C
VOUT = – 2V
– 0.50
– 0.75
– 1.00
VCC = 2.7V
– 1.25
– 1.50
– 1.75
– 2.00
VCC = 3V
– 2.25
0
5 10 15 20 25 30
OUTPUT CURRENT (mA)
1261L G01
Output Voltage vs Supply Voltage
– 3.85
VOUT = – 4V
– 3.90
– 3.95
– 4.00
– 4.05
TA = – 40°C TA = 25°C
TA = 85°C
– 4.10
– 4.15
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3
SUPPLY VOLTAGE (V)
1261L G04
Supply Current vs Supply Voltage
3.0
VOUT = – 2V
IOUT = 0
2.5
2.0
1.5
TA = 25°C
1.0
TA = 85°C
0.5
TA = – 40°C
0
2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
1261L G07
Output Voltage vs Output Current
– 3.0
– 3.1
TA = 25°C
VOUT = – 4V
– 3.2
– 3.3
– 3.4
– 3.5
VCC = 4.5V
– 3.6
– 3.7
– 3.8
– 3.9
VCC = 5V
– 4.0
– 4.1
– 4.2
0
5 10 15 20 25 30
OUTPUT CURRENT (mA)
1261L G02
Minimum Required VCC
vs VOUT and IOUT
5.6
5.2
4.8
4.4
IOUT = 20mA
4.0
3.6
3.2
IOUT = 5mA
IOUT = 10mA
2.8
2.4
2.0
–5
–4
–3
–2
–1
0
OUTPUT VOLTAGE (V)
1261L G05
Supply Current vs Supply Voltage
5.0
4.5
VOUT = – 4.5V
IOUT = 0
4.0
3.5
3.0
2.5
2.0
1.5
TA = 85°C
1.0
TA = 25°C
0.5
TA = – 40°C
0
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3
SUPPLY VOLTAGE (V)
1261L G08
Output Voltage vs Supply Voltage
–1.90
VOUT = – 2V
–1.95
– 2.00
– 2.05
TA = – 40°C
TA = 85°C
TA = 25°C
– 2.10
2.5
3.0 3.5 4.0 4.5
SUPPLY VOLTAGE (V)
5.0
1261L G03
Maximum Output Current
vs Supply Voltage
80
TA = 25°C
70
60
VOUT = – 2V
50
40
30
20
10
VOUT = – 3V
VOUT = – 4V
0
2.7 3.0 3.3 3.6 3.9 4.2 4.5 4.8 5.1 5.4
SUPPLY VOLTAGE (V)
1261L G06
Reference Voltage
vs Temperature
1.25
VCC = 5V
ADJ = 0V
1.24
1.23
1.22
1.21
– 55 –35 –15 5 25 45 65 85 105 125
TEMPERATURE (°C)
1261L G09
1261lfa
4
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