LT1790AIS6-2.5#PBF Linear Technology, LT1790AIS6-2.5#PBF Datasheet - Page 10

• Manufacturer Part Number: LT1790AIS6-2.5#PBF
• Description: ldo, vref, 2.5v, 0.05%, 6sot23; topology:series; input...
• Manufacturer: Linear Technology

1.25V TYPICAL PERFOR A CE CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
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.
LT1790
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.
10
–2000
–1000
–1200
–1400
–1600
–1800
1.253
1.252
1.251
1.250
1.248
1.247
1.249
–200
–400
–600
–800
0
–50
0.1
Output Voltage Temperature Drift
Load Regulation (Sourcing)
FOUR TYPICAL PARTS
–30
–10
OUTPUT CURRENT (mA)
TEMPERATURE ( C)
T
10
A
= 125 C
30
T
1
A
T
= 25 C
A
50
= –55 C
70
17901.25 G04
17091.25 G01
90
110
10
W
2000
1800
1600
1400
1200
1000
400
200
800
600
U
0.1
10
0
1
0.1
0
Minimum Input-Output Voltage
Differential (Sourcing)
Load Regulation (Sinking)
T
A
= 125 C
0.5
INPUT-OUTPUT VOLTAGE (V)
OUTPUT CURRENT (mA)
1
T
T
A
A
= –55 C
= 125 C
1
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.
T
T
A
A
1.5
= –55 C
= 25 C
T
A
2
17901.25 G05
17901.25 G02
= 25 C
2.5
10
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
100
90
80
70
60
50
40
30
20
10
0
0
–50
Minimum Input-Output Voltage
Differential (Sinking)
0
Supply Current vs Input Voltage
–30
T
–10
A
= –55 C
5
TEMPERATURE ( C)
10
INPUT VOLTAGE (V)
30
100 A
10
1mA
50
T
A
= 125 C
70
T
A
= 25 C
15
5mA
90 110
17091.25 G03
17901.25 G06
1790fa
130
20