65V, Low-Quiescent-Current, High-Voltage Linear
Regulators with µP Reset and Watchdog Timer
Typical Operating Characteristics (continued)
(V = +14V, C = 10µF, C
= 15µF, V = +2.4V, V
= +5V, SET = GND, T = +25°C, unless otherwise specified.)
IN
IN
OUT
EN
OUT
A
ENABLE STARTUP RESPONSE
INPUT VOLTAGE STEP RESPONSE
STARTUP RESPONSE
(V = +14V)
IN
MAX5023 toc10
MAX5023 toc11
MAX5023 toc12
V
OUT
= V
IN
= 1mA
EN
5V
OUT
5V
I
V
EN
1V/div
V
1V/div
V
OUT
1V/div
65V
V
OUT
2V/div
V
IN
0V
20V/div
65V
V
OUT
= V
IN
V
IN
EN
= 1mA
I
= 0mA
I
50V/div
0V
OUT
6.5V
200µs/div
200µs/div
100µs/div
ENABLE STARTUP RESPONSE (V = +14V)
ENABLE STARTUP RESPONSE (V = +65V)
IN
MAX5023 toc15
ENABLE STARTUP RESPONSE (V = +65V)
IN
IN
MAX5023 toc13
MAX5023 toc14
V
V
V
EN
1V/div
EN
1V/div
EN
1V/div
V
V
V
OUT
2V/div
OUT
2V/div
OUT
2V/div
I
= 150mA
I
= 150mA
I
= 0mA
OUT
OUT
OUT
100µs/div
100µs/div
100µs/div
SHUTDOWN RESPONSE
ENABLE AND HOLD TIMING
MAX5023 toc16
MAX5023 toc17
V
EN
1V/div
V
EN
5V/div
V
HOLD
5V/div
V
OUT
2V/div
V
OUT
5V/div
I
= 1mA
OUT
40ms/div
200ms/div
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5
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
