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ADP323 - High PSRR Voltage Regulator

Download the ADP323 datasheet PDF. This datasheet also covers the ADP322 variant, as both devices belong to the same high psrr voltage regulator family and are provided as variant models within a single manufacturer datasheet.

General Description

The ADP322/ADP323 200 mA triple output LDOs combine high PSRR, low noise, low quiescent current, and low dropout voltage to extend the battery life of portable devices and are ideally suited for wireless applications with demanding performance and board space requirements.

Key Features

  • Fixed (ADP322) and adjustable output (ADP323) options Bias voltage range (VBIAS): 2.5 V to 5.5 V LDO input voltage range (VIN1/VIN2, VIN3): 1.8 V to 5.5 V Three 200 mA low dropout voltage regulators (LDOs) 16-lead, 3 mm × 3 mm LFCSP Initial accuracy: ±1% Stable with 1 µF ceramic output capacitors No noise bypass capacitor required 3 independent logic controlled enables Overcurrent and thermal protection Key specifications High PSRR 76 dB PSRR up to 1 kHz 70 dB PSRR at 10 kHz 60 dB PSRR at 100 kH.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ADP322_AnalogDevices.pdf) that lists specifications for multiple related part numbers.

Full PDF Text Transcription for ADP323 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for ADP323. For precise diagrams, and layout, please refer to the original PDF.

Data Sheet FEATURES Fixed (ADP322) and adjustable output (ADP323) options Bias voltage range (VBIAS): 2.5 V to 5.5 V LDO input voltage range (VIN1/VIN2, VIN3): 1.8 V to 5...

View more extracted text
: 2.5 V to 5.5 V LDO input voltage range (VIN1/VIN2, VIN3): 1.8 V to 5.5 V Three 200 mA low dropout voltage regulators (LDOs) 16-lead, 3 mm × 3 mm LFCSP Initial accuracy: ±1% Stable with 1 µF ceramic output capacitors No noise bypass capacitor required 3 independent logic controlled enables Overcurrent and thermal protection Key specifications High PSRR 76 dB PSRR up to 1 kHz 70 dB PSRR at 10 kHz 60 dB PSRR at 100 kHz 40 dB PSRR at 1 MHz Low output noise 24 µV rms typical output noise at VOUT = 1.2 V 43 µV rms typical output noise at VOUT = 2.

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