Datasheet

MAX6791–MAX6796
High-Voltage, Micropower, Single/Dual Linear
Regulators with Supervisory Functions
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= 14V, C
IN
= 1µF, C
OUT
= 10µF, T
A
= T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= T
J
= +25°C.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX6795/MAX6796, output shorted,
V
IN
= 6V
400 480
Short-Circuit Output Current Limit
(Note 4)
MAX6791–MAX6794, output shorted,
V
IN
= 6V
200 240
mA
Thermal-Shutdown Temperature +165 °C
Thermal-Shutdown Hysteresis 20 °C
8V  V
IN
 72V, I
LOAD
= 1mA 1
Line Regulation
8V  V
IN
 72V, I
LOAD
= 10mA 1
% of
V
OUT
I
OUT
= 1mA to 300mA
(MAX6795/MAX6796)
2
Load Regulation (Note 5)
I
OUT
= 1mA to 150mA
(MAX6791–MAX6794)
1.5
%
Power-Supply Rejection Ratio PSRR I
LOAD
= 10mA, f = 100Hz, V
IN
= 500mV
P-P
69 dB
I
LOAD
= 300mA, V
OUT
= 5V,
V
OUT
= 90% of its nominal value
180
Startup Response Time t
START
I
LOAD
= 150mA, V
OUT
= 5V,
V
OUT1/OUT2
= 90% of its nominal value
360
µs
Output Overvoltage Protection
Threshold
OV
TH
I
SINK
= 1mA from OUT/OUT1/OUT2
1.05 x
V
OUT
1.1 x
V
OUT
V
Output Overvoltage Protection
Sink Current
V
OUT
= V
OUT
(nominal) x 1.15 5 10 mA
IN to GATEP Clamp Voltage I
GATEP
= -100µA, V
IN
= 20V 13.8 16.3 18.8 V
IN to GATEP Drive Voltage I
GATEP
= 0A, V
IN
= 20V 8 10 12 V
ENABLE/ENABLE1/ENABLE2/
HOLD Input-Voltage Low
V
IL
0.4 V
ENABLE/ENABLE1/ENABLE2/
HOLD Input-Voltage High
V
IH
1.4 V
ENABLE/ENABLE1/ENABLE2
Input Pulldown Current
Enable is internally pulled down to GND 0.5 µA
HOLD Input Pullup Current HOLD is internally pulled to OUT/OUT1 2 µA