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线性和低压降 (LDO) 稳压器

LP2989LV

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具有电源正常指示功能的 500mA、16V、低压降稳压器

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LP2989LV

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产品详情

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
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) 8 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.

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.
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* 数据表 LP2989LV Micropower and Low-Noise, 500-mA Ultra Low-Dropout Regulator for Use With Ceramic Output Capacitors 数据表 (Rev. K) PDF | HTML 2015年 7月 17日

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