SNVSA46B June 2014 – January 2018 LM46001
The EN pin provides electrical ON and OFF control for the LM46001. When VEN is below 0.4 V, the device is in shutdown mode. Both the internal LDO and the switching regulator are off. In shutdown mode the quiescent current drops to 2.3 µA typically with VIN = 24 V. The LM46001 also employs undervoltage lockout protection. If the VCC voltage is below the UVLO level, the output of the regulator is turned off.