The SPX1117M3-5.0/TR is a low-dropout (LDO) voltage regulator manufactured by Sipex Corporation (now part of Exar Corporation). It is designed to provide a stable and regulated 5.0V output voltage from a higher input voltage, even when the input voltage is close to the output voltage. This LDO regulator is commonly used in various electronic devices to power microcontrollers, memory chips, and other sensitive components.

Applications

• Microcontroller Power Supplies: Provides a stable 5.0V supply for microcontrollers in embedded systems.
• Memory Chip Power Supplies: Powers memory chips, ensuring reliable data storage and retrieval.
• Post Regulation for Switching Regulators: Used after switching regulators to reduce ripple and noise.
• Battery-Powered Devices: Regulates voltage in portable devices such as smartphones, tablets, and laptops.
• Linear Power Supplies: Used as a linear regulator in power supplies.

Features

• Low Dropout Voltage: Maintains regulation with input voltages close to the output voltage.
• 5.0V Fixed Output Voltage: Provides a stable and accurate 5.0V output.
• Current Limiting: Protects the regulator and the load from overcurrent conditions.
• Thermal Shutdown Protection: Prevents damage from overheating.
• Surface Mount Package: Available in a compact SOT-223 surface mount package.

Benefits

• Stable and Regulated Output: Provides a consistent and reliable voltage supply for sensitive components.
• Efficient Power Conversion: Minimizes power loss due to its low dropout voltage.
• Protection Against Overcurrent and Overheating: Enhances the reliability and longevity of electronic devices.
• Easy to Integrate: Simple to use with minimal external components required.
• Small Footprint: Compact SOT-223 package saves board space.

Additional Details

The SPX1117M3-5.0/TR is a 5.0V fixed output LDO regulator in a SOT-223 package. The "/TR" suffix typically indicates that the device is provided on tape and reel for automated assembly. The regulator requires a minimum input voltage above the dropout voltage to maintain regulation. It is recommended to use bypass capacitors at the input and output to improve stability and reduce noise. The SOT-223 package provides good thermal performance, allowing the regulator to dissipate heat effectively. This LDO regulator is suitable for a wide range of applications where a stable and regulated 5.0V supply is needed. For detailed specifications, application circuits, and performance characteristics, refer to the device datasheet provided by Exar Corporation (formerly Sipex Corporation). The datasheet provides valuable information on the device's electrical characteristics, thermal performance, and application recommendations.