Two independent UVLO (undervoltage
lockout) voltage circuits are present. An internally set UVLO on the input supply
(IN pin) automatically disables the LDO when the input voltage reaches the minimum
threshold. A precision EN function (EN_UV pin) can also be used as a
- The input supply voltage
undervoltage lockout (UVLO) circuit prevents the regulator from turning on when
the input voltage is not high enough, see the Section 6.5 table for more details.
- The precision enable circuit
allows a simple sequencing of multiple power supplies with a resistor divider
from another supply. This enable circuit can be used to set an external UVLO
voltage at which the device is enabled using a resistor divider on the EN_UV
pin; see the Section 8.1.2 section for more details.