TLV707P datasheet(19/42 Pages) TI

19 / 42 page

(120

R )

(120+R )

OUT

TLV707, TLV707P

www.ti.com

SBVS153D – FEBRUARY 2011 – REVISED JANUARY 2015

Feature Description (continued)

8.3.2 Shutdown

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 it is

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 TLV707xxP version has internal active pulldown circuitry that discharges the output with a time constant of:

where:

•

RL = Load resistance

•

COUT = Output capacitor

(1)

8.3.3 Undervoltage Lockout (UVLO)

The TLV707 uses a UVLO circuit to keep the output shut off until internal circuitry is operating properly.

8.4 Device Functional Modes

In order to turn on the regulator, it is required to drive the EN pin over 0.9 V. Driving the EN pin below 0.4 V

causes the regulator to enter shutdown mode.

In shutdown, the current consumption of the device is reduced to 1 µA, typically.

Submit Documentation Feedback

TLV707P Datasheet(PDF) 19 Page - Texas Instruments