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Revision 1.8

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AS1364

Datasheet - Application In form atio n

9.6.6 Turn On Time

This specification defines the time taken for the LDO to awake from shutdown. The time is measured from the release of the enable pin to the

Shutdown reduces the quiescent current to very low, mostly leakage values (<1µA).

9.6.7 Thermal Protection

To prevent operation under extreme fault conditions, such as a permanent short circuit at the output, thermal protection is built into the device.

Die temperature is measured, and when a 170ºC (AS1364) threshold is reached, the device enters shutdown. When the die cools sufficiently, the

device will restart (assuming input voltage exists and the device is enabled). Hysteresis of 20ºC prevents low frequency oscillation between start-

up and shutdown around the temperature threshold.