Datasheet

Note 1: Limits at -40°C are guaranteed by characterization and not production tested.
Note 2: Dropout voltage is defined as V
IN
- V
OUT
when V
OUT
is 100mV below the value of V
OUT
for V
IN
= V
OUT
+ 3V.
Note 3: V
OUT
= V
SET
(1 + R1 / R2) = 1.248V (1 + R1 / R2).
Note 4: RESET is guaranteed to be in the correct logic state for V
OUT
> +1V.
Note 5: Guaranteed by design, not production tested.
(V
IN
= +14V, C
IN
= 10μF, C
OUT
= 15μF, V
EN
= +2.4V, V
OUT
= +5V, SET = GND, T
A
= +25°C, unless otherwise specied.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Open-Drain RESET Output
Voltage (Note 4) V
OL
V
OUT
≥ +1.0V, I
SINK
= 50µA,
RESET asserted
0.3
V
V
OUT
≥ +2.85V, I
SINK
= 1.2mA,
RESET asserted
0.3
V
OUT
≥ +4.25V, I
SINK
= 3.2mA,
RESET asserted
0.4
Open-Drain RESET Output-
Leakage Current
I
LKG
RESET not asserted, V
RESET
= +11V 1.0 µA
WATCHDOG FUNCTION
Watchdog Timeout Period t
WD
1.12 1.6 2.08 s
WDI Pulse Width t
WDI
(Note 5) 50 ns
WDI Input Voltage
V
IL
0.4
V
V
IH
2.4
WDI Input Current I
WDI
WDI = GND -1 +1 µA
NO-LOAD GROUND CURRENT
vs. TEMPERATURE
MAX5023 toc02
TEMPERATURE (°C)
I
GND
(µA)
1109565 80-10 5 20 35 50-25
10
20
30
40
50
60
70
80
90
100
0
-40 125
V
IN
= +6.5V
V
IN
= +14V
V
IN
= +65V
8
11
14
17
20
5
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX5023 toc03
TEMPERATURE (°C)
I
SHDN
(µA)
1109565 80-10 5 20 35 50-25-40 125
OUTPUT VOLTAGE
vs. INPUT VOLTAGE
MAX5023 toc01
V
IN
(V)
V
OUT
(V)
605545 5015 20 25 30 35 405 10
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
0 65
I
OUT
= 0mA
MAX5023/MAX5024 65V, Low-Quiescent-Current, High-Voltage Linear
Regulators with μP Reset and Watchdog Timer
www.maximintegrated.com
Maxim Integrated │ 4
Typical Operating Characteristics