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WL2820D - CMOS LDO

General Description

The WL2820D series is a high accuracy, low noise, high speed, low dropout CMOS Linear regulator with high ripple rejection.

The devices offer a new level of cost effective performance in cellular phones, laptop and notebook computers, and other portable devices.

Key Features

  • Input voltage : 2.2V~5.5V.
  • Output range : 1.0V~3.3V.
  • Output current : 300mA.
  • PSRR : 70dB @ 217Hz.
  • Dropout voltage : 250mV @ IOUT=300mA.
  • Quiescent current : 42μA Typ.
  • Shut-down current : < 1μA.
  • Discharge Resistance : 100Ω.
  • Recommend capacitor : 1uF.

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Datasheet Details

Part number WL2820D
Manufacturer WillSEMI
File Size 1.17 MB
Description CMOS LDO
Datasheet download datasheet WL2820D Datasheet

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Full PDF Text Transcription (Reference)

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WL2820D Low noise, High PSRR, High speed, CMOS LDO Descriptions The WL2820D series is a high accuracy, low noise, high speed, low dropout CMOS Linear regulator with high ripple rejection. The devices offer a new level of cost effective performance in cellular phones, laptop and notebook computers, and other portable devices. The WL2820D has the fold-back maximum output current which depends on the output voltage. So the current limit functions both as a short circuit protection and as an output current limiter. The WL2820D regulators are available in standard DFN1x1-4L Package. Standard products are Pb-free and Halogen-free. Features  Input voltage : 2.2V~5.5V  Output range : 1.0V~3.