Datasheet

MAX6791–MAX6796
High-Voltage, Micropower, Single/Dual Linear
Regulators with Supervisory Functions
10 ______________________________________________________________________________________
Pin Description
Typical Operating Characteristics (continued)
(V
IN
= V
EN
= 14V, C
IN
= 0.1µF, C
OUT
= 10µF, T
J
= T
A
= +25°C, unless otherwise noted.)
LOAD-TRANSIENT RESPONSE
MAX6791-96toc21
OUT1
AC-COUPLED
I
OUT1
100mA/div
1mA
500mV/div
1ms/div
MAX6792
V
OUT1
= 5V
C
OUT
= 10µF
LOAD-TRANSIENT RESPONSE
MAX6791-96toc22
I
OUT1
OUT1
AC-COUPLED
100mA/div
20mA
500mV/div
1ms/div
MAX6792
V
OUT1
= 5V
C
OUT
= 10µF
PIN
MAX6791/
MAX6792
MAX6793/
MAX6794
MAX6795/
MAX6796
NAME FUNCTION
1, 2 1, 2 — OUT1
Regulator 1 Output. Fixed (+1.8V, +2.5V, +3.3V, or +5V) or adjustable (+1.8V
to +11V). V
OUT1
= 150mA (max). Connect a 10µF (min) capacitor from OUT1
to GND.
3 3 — SET1
Feedback Input for Setting the OUT1 Voltage. Connect SET1 to GND to select
the preset output voltage. Connect to an external resistive divider for
adjustable output operation.
4 4 4 PFO
Active-Low, Open-Drain, Power-Fail Comparator Output. PFO asserts low
when PFI is below the internal 1.231V threshold. PFO deasserts when PFI is
above the internal 1.231V threshold.
5 5 5 CSWT
Watchdog Timeout Period Adjust Input. Connect CSWT to OUT1/OUT for the
internally fixed watchdog timeout period. For adjustable watchdog timeout
period, connect a capacitor from CSWT to GND. See the Selecting Watchdog
Timeout Period section for more details.
6 6 6 CSRT
Reset Timeout Period Adjust Input. Connect CSRT to OUT1/OUT for the
internally fixed timeout period. For adjustable timeout, connect a capacitor
from CSRT to GND. See the Reset Output section for more details.
7 7 7 GND Ground
8 8 8 RESET
Active-Low Reset Output. RESET remains low while OUT1/OUT is below the
reset threshold. RESET remains low for the duration of the reset timeout
period after the reset conditions end. RESET is available in push-pull and
open-drain options.