LP2953_15 Datasheet, PDF (25/41 Pages) Texas Instruments – LP295x Adjustable Micropower Low-Dropout Voltage Regulators

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LP2952-N, LP2952A, LP2953, LP2953A
SNVS095F – MAY 2004 – REVISED MARCH 2015
8.2.4 5-V Regulator With Error Flags for Low Battery and Out of Regulation
Figure 38 is the example circuit for 5-V regulator with error flags for low battery and out of regulation, it has the
following features:
• Connect to logic or microprocessor control inputs.
• LOW BATT flag warns the user that the battery has discharged down to about 5.8 V, giving the user time to
recharge the battery or power down some hardware with high power requirements. The output is still in
regulation at this time.
• OUT OF REGULATION flag indicates when the battery is almost completely discharged, and can be used to
initiate a power-down sequence.
Figure 38. 5-V Regulator With Error Flags for Low Battery and Out of Regulation
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