Datasheet

ADP1710/ADP1711
Rev. 0 | Page 9 of 16
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
0.5
2.50 5.50
V
IN
(V)
TYPICAL EN THRESHOLDS (V)
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25
EN INACTIVE
EN ACTIVE
HYSTERESIS
06310-020
Figure 20. Typical EN Pin Thresholds vs. Input Voltage
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.