
Precision, Micropower,
Low-Dropout Voltage References
ELECTRICAL CHARACTERISTICS—MAX6191
(V IN = 5V, I OUT = 0nA, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
OUTPUT
MAX6191A
2.046
2.048
2.050
Output Voltage
V OUT
T A = +25°C
MAX6191B
2.043
2.048
2.053
V
MAX6191A
MAX6191C
2.038
2.048
2
2.058
5
Output-Voltage Temperature
Coefficient (Note 1)
TCV OUT
MAX6191B
4
10
ppm/°C
MAX6191C
8
25
Line Regulation
Load Regulation
Short-Circuit Current
Temperature Hysteresis
(Note 2)
Long-Term Stability
? V OUT /
? V IN
? V OUT /
? I OUT
I SC
? V OUT /
cycle
? V OUT /
time
2.5V ≤ V IN ≤ 12.6V
Sourcing: 0 ≤ I OUT ≤ 500μA
Sinking: -500μA ≤ I OUT ≤ 0
Short to GND
Short to IN
1000hrs at +25°C
10
0.12
0.18
4
4
75
50
100
0.55
0.70
μV/V
μV/μA
mA
ppm
ppm/
1000hrs
DYNAMIC
Noise Voltage
Ripple Rejection
Turn-On Settling Time
e OUT
V OUT /V IN
t R
0.1Hz to 10Hz
10Hz to 10kHz
V IN = 5V ±100mV, f = 120Hz
To 0.1%, C OUT = 50pF
40
105
84
30
μV P-P
μV RMS
dB
μs
Capacitive-Load Stability Range
C OUT
(Note 3)
0
2.2
nF
INPUT
Supply Voltage Range
Quiescent Supply Current
V IN
I IN
Guaranteed by line-regulation test
2.5
27
12.6
35
V
μA
Change in Supply Current
I IN /V IN
2.5V ≤ V IN ≤ 12.6V
0.8
2
μA/V
_______________________________________________________________________________________
3