REF19x Series
ELECTRICAL CHARACTERISTICS—REF191 @ −40°C ≤ TA ≤ +85°C
@ VS = 3.3 V, −40°C ≤ TA ≤ +85°C, unless otherwise noted.
Table 3.
Parameter
TEMPERATURE COEFFICIENT1, 2
Mnemonic
Condition
Min
Typ
Max
Unit
E Grade
F Grade
G Grade3
TCVO/°C
IOUT = 0 mA
2
5
10
5
10
25
ppm/°C
ppm/°C
ppm/°C
LINE REGULATION4
E Grade
ΔVO/ΔVIN
3.0 V ≤ VS ≤ 15 V, IOUT = 0 mA
VS = 5.0 V, 0 mA ≤ IOUT ≤ 25°C
5
10
10
20
ppm/V
ppm/V
F and G Grades
LOAD REGULATION4
E Grade
F and G Grades
DROPOUT VOLTAGE
ΔVO/ΔVLOAD
VS − VO
5
10
15
20
ppm/mA
ppm/mA
VS = 3.15 V, ILOAD = 2 mA
VS = 3.3 V, ILOAD = 10 mA
VS = 3.6 V, ILOAD = 25 mA
0.95
1.25
1.55
V
V
V
SLEEP
PIN
Logic High Input Voltage
Logic High Input Current
Logic Low Input Voltage
Logic Low Input Current
SUPPLY CURRENT
VH
IH
VL
IL
2.4
V
μA
V
μA
μA
μA
−8
0.8
−8
45
15
No load
No load
Sleep Mode
1 For proper operation, a 1 μF capacitor is required between the output pin and the GND pin of the device.
2 TCVO is defined as the ratio of output change with temperature variation to the specified temperature range expressed in ppm/°C.
TCVO = (VMAX − VMIN)/VO(TMAX − TMIN
)
3 Guaranteed by characterization.
4 Line and load regulation specifications include the effect of self-heating.
Rev. I | Page 4 of 28
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