LT1790A LINER [Linear Technology], LT1790A Datasheet - Page 9

• Manufacturer Part Number: LT1790A
• Description: Micropower SOT-23 Low Dropout Reference Family
• Manufacturer: LINER [Linear Technology]

5V ELECTRICAL CHARACTERISTICS
range, otherwise specifications are at T
PARAMETER
Output Voltage (Notes 3, 4)
Output Voltage Temperature Coefficient (Note 5)
Line Regulation
Load Regulation (Note 6)
Dropout Voltage (Note 7)
Supply Current
Minimum Operating Current—
Negative Output (See Figure 7)
Turn-On Time
Output Noise (Note 8)
Long-Term Drift of Output Voltage (Note 9)
Hysteresis (Note 10)
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: The LT1790 is guaranteed functional over the operating
temperature range of – 40 C to 125 C. The LT1790-1.25 at 125 C is
typically less than 2% above the nominal voltage. The other voltage
options are typically less than 0.25% above their nominal voltage.
Note 3: If the part is stored outside of the specified temperature range, the
output voltage may shift due to hysteresis.
Note 4: ESD (Electrostatic Discharge) sensitive device. Extensive use of
ESD protection devices are used internal to the LT1790, however, high
electrostatic discharge can damage or degrade the device. Use proper ESD
handling precautions.
A
= 25 C. C
CONDITIONS
LT1790A
LT1790B
LT1790AC
LT1790AI
LT1790BC
LT1790BI
T
5.5V V
I
I
V
No Load
V
C
0.1Hz f 10Hz
10Hz f 1kHz
OUT
OUT
MIN
IN
OUT
LOAD
T = 0 C to 70 C
T = – 40 C to 85 C
LT1790A
LT1790B
I
I
I
OUT
OUT
OUT
– V
Source = 5mA
Sink = 3mA
L
= – 5V, 0.1%
= 0mA
Source = 5mA
Sink = 3mA
= 1 F
= 1 F and V
OUT
T
A
IN
, V
T
18V
MAX
OUT
= 0.1%
The
IN
= 5.5V, unless otherwise noted.
Note 5: Temperature coefficient is measured by dividing the change in
output voltage by the specified temperature range. Incremental slope is
also measured at 25 C.
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: Excludes load regulation errors.
Note 8: Peak-to-peak noise is measured with a single pole highpass filter
at 0.1Hz and a 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 seconds. Integrated RMS noise is measured from 10Hz to 1kHz
with the HP3561A analyzer.
denotes specifications that apply over the specified temperature
4.99400
4.99125
4.98625
4.97938
–0.4125
–0.120
–0.175
–0.275
4.9975
–0.05
4.995
–0.10
MIN
TYP
100
700
118
100
12
50
80
70
50
35
80
50
40
5
5
5
5
5
5
5
5.00600
5.00875
5.01375
5.02063
5.0025
0.4125
5.005
0.120
0.175
0.275
MAX
0.05
0.10
170
220
160
250
110
300
100
120
450
250
125
10
25
60
80
LT1790
ppm/ kHr
ppm/mA
ppm/mA
ppm/mA
ppm/mA
ppm/ C
ppm/ C
ppm/V
ppm/V
UNITS
V
1790fa
9
ppm
ppm
V
RMS
mV
mV
mV
mV
P-P
%
%
%
%
%
%
V
V
V
V
V
V
A
A
A
s