Datasheet

(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
Output Voltage V
OUT
T
A
= +25°C, I
OUT
= 1mA 3.267 3.3 3.333
V
5V ≤ V
S
≤ 28V, I
OUT
= 1mA to 50mA (Note 2) 3.234 3.3 3.366
5V ≤ V
S
≤ 40V, t ≤ 1s, I
OUT
= 1mA to 30mA
(Note 2)
3.234 3.3 3.366
V
S
= +8V, I
OUT
= 1mA to 100mA 3.234 3.3 3.366
V
S
to V
OUT
Difference in
Undervoltage
V
IO
V
S
= 3.5V, I
OUT
= 35mA 0.2 0.4 V
Line Regulation V
OL
5V ≤ V
S
≤ 28V, I
OUT
= 1mA 0.6 5 mV
Load Regulation V
OLO
1mA ≤ I
OUT
≤ 100mA 11 40 mV
Current Limit I
LIM
160 260 400 mA
Quiescent Current I
Q
I
OUT
= 100µA 45 100
µA
I
OUT
= 300µA 45 100
I
OUT
= 100mA 4.4 10 mA
Shutdown Supply Current I
SHDN
V
EN
≤ 0.4V 17 30 µA
Thermal-Shutdown Temperature T
J(SHDN)
Temperature rising +165 °C
Thermal-Shutdown Hysteresis ΔT
J(SHDN)
20 °C
RESET CIRCUIT
Reset Threshold Voltage V
RT
V
OUT
falling 85 90 94.5 %V
OUT
Reset Threshold Hysteresis V
RTH
20 45 80 mV
Reset Pulse Delay t
RD
C
CT
= 100nF, t
R
≥ 100µs 55 105 180 ms
RES Output Low Voltage V
RL
V
S
≥ 1.5V, R
RES
= 4kΩ to V
OUT
0.4 V
RES Output High Leakage Current I
RH
V
RES
= 3.3V 1.0 µA
Delay Comparator Threshold V
CTTH
V
CT
rising 1.9 2.1 2.4 V
Delay Comparator Threshold
Hysteresis
100 mV
MAX5091 28V, 100mA, Low-Quiescent-Current LDO
with Reset and Power-Fail Input/Output
www.maximintegrated.com
Maxim Integrated │ 4
Electrical Characteristics (MAX5091B)