The SPX1202M3-3.0 is a 300mA low dropout (LDO) linear regulator from Sipex Corporation (later acquired by Exar, now MaxLinear). This regulator is designed to provide a stable and accurate 3.0V output voltage with a low dropout voltage, making it suitable for battery-powered and portable applications. It features overcurrent and overtemperature protection, ensuring reliable operation under various conditions.

Applications:

• Battery-Powered Devices: Used to regulate voltage in mobile phones, PDAs, and other portable devices.
• Microprocessor Power Supplies: Employed to provide stable power to microprocessors and microcontrollers.
• Post Regulation for Switching Supplies: Used to reduce ripple and noise in switching power supplies.
• Linear Regulators for Noise Sensitive Circuits: Used to provide clean power to analog and RF circuits.

Features:

• Low Dropout Voltage: Operates with a low input-to-output voltage differential, maximizing efficiency.
• 300mA Output Current: Provides a stable 300mA output current for various applications.
• Fixed Output Voltage: Provides a fixed 3.0V output voltage.
• Overcurrent Protection: Protects the regulator from damage due to output overloads or short circuits.
• Overtemperature Protection: Protects the regulator from thermal damage due to excessive heat.
• Low Quiescent Current: Minimizes power consumption, extending battery life.
• Small Package: Available in a small SOT-23 package for compact designs.

Benefits:

• Improved Efficiency: Low dropout voltage maximizes efficiency, extending battery life.
• Reliable Operation: Overcurrent and overtemperature protection ensure reliable operation under various conditions.
• Compact Design: Small package size allows for integration in space-constrained applications.
• Stable Output Voltage: Provides a stable and accurate 3.0V output voltage.

Technical Specifications:

The SPX1202M3-3.0 operates with an input voltage range of typically 2.5V to 6V. It provides a stable 3.0V output voltage with a dropout voltage typically less than 200mV at 300mA. The quiescent current is typically a few microamps. The device is available in a SOT-23 package and is designed to operate over a specified temperature range. The output voltage accuracy is typically within a few percent.