The SPX3819R2-3.3/TR is a low dropout (LDO) linear regulator manufactured by Sipex Corporation. It provides a stable and accurate 3.3V output voltage. The '/TR' suffix indicates tape and reel packaging, which is suitable for automated assembly processes.

Applications

• Portable Electronics: Powers various components in portable devices requiring stable 3.3V.
• Microcontroller Power Supply: Provides a regulated 3.3V supply for microcontrollers and processors.
• Sensor Power: Supplies power to sensors that need a stable and clean 3.3V voltage.
• Wireless Communication Modules: Powers RF transceivers and other wireless communication components.
• Battery-Powered Systems: Used in battery powered devices requiring efficient voltage regulation.

Features

• Low Dropout Voltage: Allows operation with a small difference between input and output voltage for increased efficiency.
• 3.3V Fixed Output: Provides a precise 3.3V regulated output.
• Low Quiescent Current: Minimizes power consumption in standby mode.
• Over-Current Protection: Protects the regulator and connected circuitry from damage due to over-current conditions.
• Thermal Shutdown Protection: Protects the regulator from overheating.
• Stable with Ceramic Capacitors: Designed to work with low-ESR ceramic capacitors, which are commonly used in electronic circuits.

Benefits

• Extended Battery Life: Low quiescent current and low dropout voltage improve battery life in portable applications.
• Stable and Reliable Power: Provides a consistent voltage for sensitive electronic components.
• Simplified Design: Fixed output voltage simplifies circuit design.
• Robust Protection: Over-current and thermal shutdown protection improve system reliability.
• Compact Size: Small package allows use in space-constrained applications.

Additional Details

The SPX3819R2-3.3/TR is typically available in a small surface-mount package (e.g., SOT-23). Consult the datasheet for specific electrical characteristics, such as input voltage range, output current capability, dropout voltage at specific load currents, and thermal resistance. The datasheet also provides details on recommended external components, such as input and output capacitor values, for optimal performance and stability.