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SPX3819M5-L-1-8 Datasheet(PDF) 1 Page - Exar Corporation |
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SPX3819M5-L-1-8 Datasheet(HTML) 1 Page - Exar Corporation |
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1 / 13 page  500mA Low-Noise LDO Voltage Regulator 500mA Low-Noise LDO Voltage Regulator August 2016 Rev. 2.0.3 Exar Corporation www.exar.com 48720 Kato Road, Fremont CA 94538, USA Tel. +1 510 668-7000 – Fax. +1 510 668-7001 GENERAL DESCRIPTION The SPX3819 is a positive voltage regulator with a low dropout voltage and low noise output. In addition, this device offers a very low ground current of 800μA at 100mA output. The SPX3819 has an initial tolerance of less than 1% max and a logic compatible ON/OFF switched input. When disabled, power consumption drops to nearly zero. Other key features include reverse battery protection, current limit, and thermal shutdown. The SPX3819 includes a reference bypass pin for optimal low noise output performance. With its very low output temperature coefficient, this device also makes a superior low power voltage reference. The SPX3819 is an excellent choice for use in battery-powered applications such as cordless telephones, radio control systems, and portable computers. It is available in several fixed output voltage options or with an adjustable output voltage. This device is offered in 8 pin NSOIC, 8 pin DFN and 5-pin SOT-23 packages. APPLICATIONS • Portable Consumer Equipment • Portable Instrumentation • Industrial Equipment • SMPS Post Regulators FEATURES • Low Noise: 40μV Possible • High Accuracy: 1% • Reverse Battery Protection • Low Dropout: 340mV at Full Load • Low Quiescent Current: 90μA • Zero Off-Mode Current • Fixed & Adjustable Output Voltages: − 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V & 5.0V Fixed Output Voltages − ≥1.235V Adjustable Output Voltages • Available in RoHS Compliant, Lead Free Packages: − 5-pin SOT-23, 8-pin SOIC and 8-pin DFN TYPICAL APPLICATION DIAGRAM Fig. 1: SPX3819 Application Circuit |
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