Datasheet

MIC2915X/30X/50X/75X
DS20005685B-page 26  2016-2019 Microchip Technology Inc.
FIGURE 4-2: Adjustable Regulator with
Resistors.
4.5 Error Flag
MIC29xx1 and MIC29xx3 versions feature an Error
Flag, which looks at the output voltage and signals an
error condition when this voltage drops 5% below its
expected value. The error flag is an open-collector
output that pulls low under fault conditions. It may sink
10 mA. Low output voltage signifies a number of
possible problems, including an overcurrent fault (the
device is in current-limit) and low input voltage. The flag
output is inoperative during overtemperature shutdown
conditions.
4.6 Enable Input
MIC29xx1 and MIC29xx2 versions feature an enable
(EN) input that allows ON/OFF control of the device.
Special design allows “zero” current drain when the
device is disabled; only microamperes of leakage
current flows. The EN input has TTL/CMOS compatible
thresholds for simple interfacing with logic, or may be
directly tied to ≤30V. Enabling the regulator requires
approximately 20 µA of current.
R1
R2
V
IN
V
OUT
MIC29152
22μF
10μF