ADP1711 Analog Devices, ADP1711 Datasheet - Page 9

• Manufacturer Part Number: ADP1711
• Description: 150 mA, Low Dropout, CMOS Linear Regulator
• Manufacturer: Analog Devices

As can be seen, the EN pin has hysteresis built in. This prevents
on/off oscillations that can occur due to noise on the EN pin as
it passes through the threshold points.
The EN pin active/inactive thresholds are derived from the IN
voltage. Therefore, these thresholds vary with changing input
voltage. Figure 20 shows typical EN active/inactive thresholds
when the input voltage varies from 2.5 V to 5.5 V.
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
2.50
Figure 20. Typical EN Pin Thresholds vs. Input Voltage
2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25
EN ACTIVE
EN INACTIVE
V
IN
(V)
HYSTERESIS
5.50
Rev. 0 | Page 9 of 16
UNDERVOLTAGE LOCKOUT (UVLO)
The ADP1710/ADP1711 have an undervoltage lockout circuit,
which monitors the voltage on the IN pin. When the voltage on
IN drops below 1.95 V (minimum), the circuit activates, disabling
the OUT pin.
ADP1710/ADP1711