The enable pin (EN) is active high. The device is enabled when voltage at the EN pin goes above 0.9 V. This relatively lower voltage value required to turn on the LDO can also be used to power the device when connected to a GPIO of a newer processor, where the GPIO logic 1 voltage level is lower than that of traditional microcontrollers. The device is turned off when the EN pin is held at less than 0.4 V. When shutdown capability is not required, EN can be connected to the IN pin.

The TLV707P version has internal active pulldown circuitry that discharges the output with a time constant as given by Equation 1:

Equation 1.

where:

• R_L = Load resistance
• C_OUT = Output capacitor