LT1019 Linear Technology, LT1019 Datasheet - Page 4

• Manufacturer Part Number: LT1019
• Description: 2.5V Reference
• Manufacturer: Linear Technology

LT1019
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: These are high power conditions and are therefore guaranteed
only at temperatures equal to or below 70 C. Input is either floating, tied to
output or held higher than output.
Note 3: Output voltage drift is measured using the box method. Output
voltage is recorded at T
readings is subtracted from the highest and the resultant difference is
divided by (T
Note 4: Line regulation and load regulation are measured on a pulse basis
with low duty cycle. Effects due to die heating must be taken into account
separately. See thermal regulation and application section.
Note 5: Load regulation is measured at a point 1/8" below the base of the
package with Kelvin contacts.
Note 6: Shunt regulation is measured with the input floating. This
parameter is also guaranteed with the input connected (V
0mA I
ELECTRICAL C
The
V
SYMBOL
I
I
e
4
Q
SC
n
V
IN
I
OUT
OUT
= 15V, I
denotes specifications which apply over the full operating temperature range, otherwise specifications are T A = 25 C.
SINK
PARAMETER
Load Regulation Series
Mode (Notes 4, 5)
Load Regulation,
Shunt Mode
Thermal Regulation (Note 7)
Quiescent Current
Series Mode
Minimum Shunt Current
Minimum Input/Output
Voltage Differential
Trim Range
Short-Circuit Current
Output Connected to GND
Output Voltage Noise
(Note 10)
MAX
OUT
10mA. Shunt and sink current flow into the output.
– T
= 0 unless otherwise noted.
MIN
MIN
).
, 25 C and T
HARA TERISTICS
MAX
C
. The lowest of these three
CONDITIONS
0 I
1mA I
(Note 8)
I
I
LT1019-2.5
LT1019-5
LT1019-10
2V V
10Hz f 1kHz
0.1Hz f 10Hz
OUT
OUT
P = 200mW, t = 50ms
2.5V, 4.5V, 5V
10V
OUT
= 10mA
IN
1mA
SHUNT
10mA (Note 5)
35V
IN
– V
10mA (Notes 5, 6)
OUT
) > 1V,
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.
Note 8: Minimum shunt current is measured with shunt voltage held
20mV below the value measured at 1mA shunt current.
Note 9: Minimum input/output voltage is measured by holding input
voltage 0.5V above the nominal output voltage, while measuring
V
Note 10: 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
the nonideal bandpass of the filters.
Note 11: If the part is stored outside of the specified temperature range,
the output may shift due to hysteresis.
IN
– V
OUT
MIN
15
10
.
3.5
3.5 5, – 13
3.5 5, – 27
LTC1019A
0.02
0.65
TYP
0.1
0.1
0.5
0.9
2.5
2.5
25
6
MAX
0.05
0.08
0.4
0.8
0.5
1.0
1.3
0.8
1.1
1.3
50
4
MIN
15
10
3.5
3.5
3.5
LTC1019
5, – 13
5, – 27
TYP
0.02
0.65
0.1
0.1
0.5
0.9
2.5
2.5
25
6
MAX
0.05
0.08
0.4
0.8
0.5
1.5
0.8
1.1
1.3
1.2
50
4
mV/mA ( )
mV/mA ( )
mV/mA ( )
mV/mA ( )
ppm (RMS)
ppm (P-P)
ppm/mW
UNITS
mA
mA
mA
mA
mA
%
%
%
V
V