L5150GJ Просмотр технического описания (PDF) - STMicroelectronics

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L5150GJ

5 V low dropout voltage regulator

STMicroelectronics 

L5150GJ

Application information

3.3

Early warning

This circuit compares the EWi input signal with the internal voltage reference (typically

2.5 V). The use of an external voltage divider makes the comparator very flexible in the

application. This function can be used to supervise the supply input voltage either before or

after the protection diode and to give additional information to the microprocessor such as

low voltage warnings.

Figure 28. Early warning time diagram

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3.4

Enable

L5150GJ is also provided with an enable input, an high signal switches the regulator on.

When the enable pin is set to low the output is switched-off and the current consumption of

the device is 5 µA typical.

Doc ID 15540 Rev. 12

19/29

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