MAX5091
28V, 100mA, Low-Quiescent-Current LDO
with Reset and Power-Fail Input/Output
_______________________________________________________________________________________ 5
Note 1: Limits at T
A
= -40°C are guaranteed by design and not production tested.
Note 2: Maximum output current is limited by the power dissipation capability of the package.
ELECTRICAL CHARACTERISTICS (MAX5091B) (continued)
(V
S
= +14V, V
OUT
= 3.3V, EN unconnected, T
A
= T
J
= -40°C to +125°C, C
IN
= 10µF, C
OUT
= 10µF, unless otherwise noted. Typical
specifications are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SENSE
Sense Threshold V
ST
V
SI
falling 1.09 1.15 1.23 V
Sense Threshold
Hysteresis
50 100 150 mV
Sense Output-Low
Voltage
V
SL
V
SI
≤ 1.09V, V
S
≥ 4V, R
SO
= 10kΩ to V
OUT
0.4 V
Sense Output
Leakage Current
I
SH
V
SO
= 3.3V, V
SI
≥ 1.5V 1 µA
Sense Input Current I
SI
V
SI
= 3.3V -1 +1 µA
ENABLE
EN = high, regulator on 2.4
Enable Voltage V
EN
EN = low, regulator off 0.4
V
Enable Internal
Pullup Current
I
EN
EN is internally pulled up to 3.6V (max) 3 µA
Typical Operating Characteristics
(Typical Application Circuit, V
S
= +14V, C
IN
= 10µF, C
OUT
= 10µF, V
SI
= 0V, V
EN
= +2.4V, V
OUT
= +5V, T
A
= +25°C, unless other-
wise noted.)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
MAX5091 toc01
V
S
(V)
V
OUT
(V)
10
5
15
3
4
5
6
2
0
MAX5091AV
OUT
AT NO LOAD, 100
μ
A,
1mA, 10mA, 100mA
OUTPUT VOLTAGE vs. INPUT VOLTAGE
MAX5091 toc02
V
S
(V)
V
OUT
(V)
54321
1
2
3
4
0
06
MAX5091BV
OUT
AT NO LOAD, 100
μ
A,
1mA, 10mA, 100mA
OUTPUT VOLTAGE vs. OUTPUT CURRENT
MAX5091 toc03
I
OUT
(mA)
V
OUT
(V)
1010.1
4.92
4.94
4.96
4.98
5.00
5.02
5.04
4.90
0.01 100
MAX5091A
V
S
= 14V
V
S
= 6V
