LP2989LV

具有电源正常指示功能的 500mA、16V、低压降稳压器 8-SOIC -40 to 125

The is a fixed-output 500-mA precision LDO regulator designed for use with ceramic output capacitors.

Output noise can be reduced to 18 µV typical by connecting an external 10-nF capacitor to the bypass pin.

Using an optimized Vertically Integrated PNP VIP process, the LP2989LV delivers superior performance:

Ground Pin Current: Typically 3 mA at 500-mA load, and 110 µA at 100-µA load.

Sleep Mode: The LP2989LV draws less than 0.8-µA quiescent current when SHUTDOWN pin is pulled low.

ERROR Flag: The built-in ERROR flag goes low when the output drops approximately 5% below nominal.

Precision Output: Output voltage accuracy is 0.75% A grade and 1.25% standard grade at room temperature.

For output voltages greater than or equal to 2 V, see the LP2989 SNVS083 data sheet.

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2.1-V to 16-V Input Voltage Range

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Ultra-Low Dropout Voltage

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500-mA Continuous Output Current

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Very Low Output Noise With External Capacitor

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< 0.8-µA Quiescent Current When Shut Down

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Low Ground Pin Current at All Loads

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0.75% Output Voltage Accuracy A Grade

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High Peak Current Capability 800-mA typical

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Overtemperature and Overcurrent Protection

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−40°C to +125°C Junction Temperature Range