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LT1790AIS6-2.5 Datasheet(PDF) 10 Page - Linear Technology

Part # LT1790AIS6-2.5
Description  Micropower SOT-23 Low Dropout Reference Family
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1790AIS6-2.5 Datasheet(HTML) 10 Page - Linear Technology

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LT1790
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Note 9: Long-term drift typically has a logarithmic characteristic and
therefore changes after 1000 hours tend to be smaller than before that
time. Long-term drift is affected by differential stress between the IC and
the board material created during board assembly. See Applications
Information.
ELECTRICAL CHARACTERISTICS
Note 10: Hysteresis in the output voltage is created by package stress that
differs depending on whether the IC was previously at a higher or lower
temperature. Output voltage is always measured at 25
°C, but the IC is
cycled to 85
°C or –40°C before a successive measurements. Hysteresis is
roughly proportional to the square of the temperature change. Hysteresis
is not a problem for operational temperature excursions where the
instrument might be stored at high or low temperature. See Applications
Information.
1.25V TYPICAL PERFOR A CE CHARACTERISTICS
Output Voltage Temperature Drift
Load Regulation (Sourcing)
Minimum Input-Output Voltage
Differential (Sourcing)
Minimum Input-Output Voltage
Differential (Sinking)
Load Regulation (Sinking)
Supply Current vs Input Voltage
TEMPERATURE (
°C)
–50
1.247
1.248
1.249
1.250
1.251
–10
30
70
110
17091.25 G01
1.252
1.253
–30
10
50
90
FOUR TYPICAL PARTS
INPUT-OUTPUT VOLTAGE (V)
10
17901.25 G02
0.1
1
0.5
2.5
2
1.5
1
0
TA = 125°CTA = –55°C
TA = 25°C
TEMPERATURE (
°C)
–50
0
0.1
0.3
0.4
0.5
1.0
0.7
–10
30
50
130
17091.25 G03
0.2
0.8
0.9
0.6
–30
10
70
90 110
5mA
100
µA
1mA
OUTPUT CURRENT (mA)
0.1
–2000
–1600
–1200
–800
–400
110
17901.25 G04
0
–1800
–1400
–1000
–600
–200
TA = –55°C
TA = 25°C
TA = 125°C
OUTPUT CURRENT (mA)
0.1
0
400
800
1200
1600
110
17901.25 G05
2000
200
600
1000
1400
1800
TA = –55°C
TA = 25°C
TA = 125°C
INPUT VOLTAGE (V)
60
80
100
15
17901.25 G06
40
20
50
70
90
30
10
0
5
0
10
20
TA = –55°C
TA = 25°C
TA = 125°C
Each of the voltage options have similar performance curves. For the 3V, 3.3V and the 4.096V options,
the curves can be estimated based on the 2.5V and 5V curves.


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