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ADP3309 - 100 mA Low Dropout Linear Regulator

General Description

The ADP3309 is a member of the ADP330x family of precision low dropout anyCAP voltage regulators.

It is pin-for-pin and functionally compatible with National’s LP2981, but offers performance advantages.

The ADP3309 stands out from conventional LDOs with a novel architecture and an enhanced process.

Key Features

  • ±1.2% accuracy over line and load regulations @ 25°C Ultralow dropout voltage: 120 mV typical @ 100 mA Requires only COUT = 0.47 μF for stability anyCAP LDOs are stable with all types of capacitors (including MLCC) Current and thermal limiting Low noise Low shutdown current: 1 μA 2.8 V to 12 V supply range.
  • 20°C to +85°C ambient temperature range Several fixed voltage options Ultrasmall 5-lead SOT-23 package Excellent line and load regulations.

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Full PDF Text Transcription for ADP3309 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for ADP3309. For precise diagrams, tables, and layout, please refer to the original PDF.

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FEATURES ±1.2% accuracy over line and load regulations @ 25°C Ultralow dropout voltage: 120 mV typical @ 100 mA Requires only COUT = 0.47 μF for stability anyCAP LDOs are stable with all types of capacitors (including MLCC) Current and thermal limiting Low noise Low shutdown current: 1 μA 2.8 V to 12 V supply range −20°C to +85°C ambient temperature range Several fixed voltage options Ultrasmall 5-lead SOT-23 package Excellent line and load regulations APPLICATIONS Cellular telephones Notebook, palmtop computers Battery-powered systems PCMCIA regulator Bar code scanners Camcorders, cameras GENERAL DESCRIPTION The ADP3309 is a member of the ADP330x family of precision low dropout anyCAP voltage regulators.