LP2989LV

Name: LP2989LV
Brand: TI
SKU: LP2989LV
Price: 1.183 USD

現行

具電源良好功能的 500-mA、16-V、低壓降電壓穩壓器

立即訂購

產品規格表

document-pdfAcrobat LP2989LV Micropower and Low-Noise, 500-mA Ultra Low-Dropout Regulator for Use With Ceramic Output Capacitors datasheet (Rev. K) (英文) PDF | HTML

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LP2989LV

現行

產品規格表

立即訂購

產品詳細資料

Output options

Fixed Output

Iout (max) (A)

0.5

Vin (max) (V)

Vin (min) (V)

2.1

Vout (max) (V)

1.8

Vout (min) (V)

1.8

Fixed output options (V)

1.8

Noise (µVrms)

Iq (typ) (mA)

0.11

Thermal resistance θJA (°C/W)

Rating

Catalog

Load capacitance (min) (µF)

Regulated outputs (#)

Features

Enable, Power good

Accuracy (%)

1.6

PSRR at 100 KHz (dB)

Dropout voltage (Vdo) (typ) (mV)

160

Operating temperature range (°C)

-40 to 125

Output options

Fixed Output

Iout (max) (A)

0.5

Vin (max) (V)

Vin (min) (V)

2.1

Vout (max) (V)

1.8

Vout (min) (V)

1.8

Fixed output options (V)

1.8

Noise (µVrms)

Iq (typ) (mA)

0.11

Thermal resistance θJA (°C/W)

Rating

Catalog

Load capacitance (min) (µF)

Regulated outputs (#)

Features

Enable, Power good

Accuracy (%)

1.6

PSRR at 100 KHz (dB)

Dropout voltage (Vdo) (typ) (mV)

160

Operating temperature range (°C)

-40 to 125

SOIC (D)

29.4 mm² 4.9 x 6

2.1-V to 16-V Input Voltage Range
Ultra-Low Dropout Voltage
500-mA Continuous Output Current
Very Low Output Noise With External Capacitor
< 0.8-µA Quiescent Current When Shut Down
Low Ground Pin Current at All Loads
0.75% Output Voltage Accuracy (A Grade)
High Peak Current Capability (800-mA typical)
Overtemperature and Overcurrent Protection
−40°C to +125°C Junction Temperature Range

2.1-V to 16-V Input Voltage Range
Ultra-Low Dropout Voltage
500-mA Continuous Output Current
Very Low Output Noise With External Capacitor
< 0.8-µA Quiescent Current When Shut Down
Low Ground Pin Current at All Loads
0.75% Output Voltage Accuracy (A Grade)
High Peak Current Capability (800-mA typical)
Overtemperature and Overcurrent Protection
−40°C to +125°C Junction Temperature Range

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.