LT1460HCS3-2.5 LINER [Linear Technology], LT1460HCS3-2.5 Datasheet - Page 4

• Manufacturer Part Number: LT1460HCS3-2.5
• Description: Family of Micropower Series References in SOT-23
• Manufacturer: LINER [Linear Technology]

LT1460S3 (SOT-23)
ELECTRICAL CHARACTERISTICS
Note 6: Load regulation is measured on a pulse basis from no load to the
specified load current. Output changes due to die temperature change
must be taken into account separately.
Note 7: Thermal regulation is caused by die temperature gradients created
by load current or input voltage changes. This effect must be added to
normal line or load regulation. This parameter is not 100% tested.
Note 8: Excludes load regulation errors.
Note 9: Peak-to-peak noise is measured with a single pole highpass filter
at 0.1Hz and 2-pole lowpass filter at 10Hz. The unit is enclosed in a still-air
environment to eliminate thermocouple effects on the leads. The test time
is 10 sec. RMS noise is measured with a single pole highpass filter at
10Hz and a 2-pole lowpass filter at 1kHz. The resulting output is full wave
rectified and then integrated for a fixed period, making the final reading an
average as opposed to RMS. A correction factor of 1.1 is used to convert
from average to RMS and a second correction of 0.88 is used to correct
for the nonideal bandpass of the filters.
TYPICAL PERFORMANCE CHARACTERISTICS
LT1460S3s. Curves from the LT1460S3-2.5 and the LT1460-10 represent the extremes of the voltage options. Characteristic curves for
other output voltages fall between these curves, and can be estimated based on their voltage output.
4
100
0.1
10
1
0
2.5V Minimum Input-Output
Voltage Differential
0.5
INPUT-OUTPUT VOLTAGE (V)
125 C
1.0
– 55 C
25 C
1.5
W
2.0
1460S3 G01
U
2.5
– 0.5
– 1.0
– 1.5
– 2.0
– 2.5
– 3.0
– 3.5
– 4.0
0
0.1
2.5V Load Regulation, Sourcing
OUTPUT CURRENT (mA)
1
125 C
Note 10: Long-term stability typically has a logarithmic characteristic and
therefore, changes after 1000 hours tend to be much smaller than before
that time. Total drift in the second thousand hours is normally less than
one third that of the first thousand hours with a continuing trend toward
reduced drift with time. Long-term stability will also be affected by
differential stresses between the IC and the board material created during
board assembly.
Note 11: Hysteresis in 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 70 C or 0 C before successive measurements. Hysteresis is
roughly proportional to the square of the temperature change. Hysteresis
is not normally a problem for operational temperature excursions where
the instrument might be stored at high or low temperature. See
Applications Information.
– 55 C
25 C
10
1460s3 G02
Characteristic curves are similar for most
100
120
100
80
60
40
20
0
2.5V Load Regulation, Sinking
0
1
OUTPUT CURRENT (mA)
25 C
2
125 C
3
4
– 55 C
1460S3 G03
5