LP2989LV系列介绍资料

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LP2989LV

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The LP2989LV 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.

Output options	Fixed Output
Iout (max) (A)	0.5
Vin (max) (V)	16
Vin (min) (V)	2.1
Vout (max) (V)	1.8
Vout (min) (V)	1.8
Fixed output options (V)	1.8
Noise (µVrms)	18
Iq (typ) (mA)	0.11
Thermal resistance θJA (°C/W)	35
Rating	Catalog
Load capacitance (min) (µF)	10
Regulated outputs (#)	1
Features	Enable, Power good
Accuracy (%)	1.6
PSRR at 100 KHz (dB)	32
Dropout voltage (Vdo) (typ) (mV)	160
Operating temperature range (°C)	-40 to 125

SOIC (D)

29.4 mm² 4.9 x 6

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