Two independent undervoltage lockout (UVLO)
circuits are present. An internally set UVLO on the input supply (IN pin) disables the LDO
when the input voltage reaches the minimum threshold. A precision EN function (EN_UV pin)
can also be used as a user-programmable UVLO.
- The input supply voltage UVLO circuit
prevents the regulator from turning on when the input voltage is not high enough; see the
Electrical Characteristics table for more details.
- The precision enable circuit allows for 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 Precision Enable (External UVLO) section for more details.