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LP2989AIM-5.0/NOPB +BOM

500-mA, 16-V, low-dropout voltage regulator with power good & enable

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LP2989AIM-5.0/NOPB General Description

The LP2989 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 LP2989 delivers superior performance:

  • Dropout Voltage: Typically 310 mV at 500-mA load, and 1 mV at 100-µA load.
  • Ground Pin Current: Typically 3 mA at 500-mA load, and 110 µA at 100-µA load.
  • Sleep Mode: The LP2989 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 < 2 V, see LP2989LV (SNVS086) data sheet.

LP2989AIM-5.0/NOPB

Key Features

  • 2.1-V to 16-V Input Voltage Range
  • 2.5-V to 5-V Fixed Output Voltage Options
  • Ultra-Low Dropout Voltage
  • 500-mA Continuous Output Current
  • Very Low Output Noise With External Capacitor
  • < 0.8-µA Quiescent Current When Shutdown
  • 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

Specifications

Output options Fixed Output Iout (max) (A) 0.5
Vin (max) (V) 16 Vin (min) (V) 2.1
Vout (max) (V) 5 Vout (min) (V) 2.5
Fixed output options (V) 2.5, 2.8, 3, 3.3, 3.8, 5 Noise (µVrms) 18
Iq (typ) (mA) 0.11 Thermal resistance θJA (°C/W) 35
Rating Catalog Load capacitance (min) (µF) 4.7
Regulated outputs (#) 1 Features Enable, Power good
Accuracy (%) 2 PSRR at 100 KHz (dB) 32
Dropout voltage (Vdo) (typ) (mV) 310 Operating temperature range (°C) -40 to 125

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Qty. Unit Price Ext. Price
1+ $4.926 $4.93
10+ $4.322 $43.22
30+ $3.953 $118.59
100+ $3.643 $364.30

The prices below are for reference only.

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