The SPX1117M3-1.8 is a low dropout (LDO) voltage regulator manufactured by Sipex Corporation. It's designed to provide a stable and regulated 1.8V output voltage from a higher input voltage. This regulator is suitable for various applications requiring a clean and reliable power source, especially in battery-powered devices.

Applications

• Microcontroller power supplies
• Battery-powered devices
• Post-regulation for switching power supplies
• Linear regulation in noise-sensitive applications
• Portable electronics

Features

• Low Dropout Voltage: Typically 1.2V at full load, allowing operation with a small difference between input and output voltage.
• Fixed Output Voltage: Provides a stable and accurate 1.8V output.
• Output Current: Up to 800mA, suitable for powering various electronic circuits.
• Short-Circuit Protection: Protects the regulator and the load from damage in case of a short circuit.
• Thermal Overload Protection: Shuts down the regulator when the temperature exceeds a safe limit.
• SOT-223 Package: Provides good thermal performance for efficient heat dissipation.

Benefits

• Stable Output Voltage: Provides a clean and regulated 1.8V output, ensuring reliable operation of powered devices.
• Extended Battery Life: Low dropout voltage allows for operation with lower input voltages, extending battery life in portable devices.
• Overload Protection: Short-circuit and thermal overload protection features prevent damage to the regulator and the load.
• Simplified Design: Requires few external components, simplifying circuit design and reducing board space.
• Improved System Reliability: Protects sensitive components from voltage fluctuations and overload conditions.
• Cost-Effective Solution: Provides a cost-effective solution for voltage regulation in various applications.

Additional Details

The SPX1117M3-1.8 requires an input capacitor and an output capacitor for stable operation. The recommended capacitor values are typically in the range of 10uF to 100uF, depending on the load current and the desired transient response. The regulator is also RoHS compliant. The operating temperature range is typically from -40°C to +125°C. Always consult the datasheet for precise specifications and application recommendations.