The SPX2815T-2.5 is a low dropout (LDO) linear regulator from Sipex Corporation (later acquired by Exar, now MaxLinear), delivering a fixed 2.5V output. This regulator is designed to provide up to 1.5A of output current with a low dropout voltage, making it suitable for a range of applications, particularly those requiring efficient power management and stable voltage regulation. It incorporates both overcurrent and thermal shutdown protection, ensuring robust performance and reliability.

Applications:

• Microprocessor Core Voltage: Supplies a stable 2.5V for microprocessor and microcontroller cores.
• Memory Power Supplies: Regulates power for memory devices, such as DDR and SDRAM.
• Post Regulation: Provides clean and stable voltage after a switching regulator stage.
• Battery-Powered Devices: Efficiently regulates voltage in portable devices to extend battery life.

Features:

• 1.5A Output Current: Capable of providing up to 1.5A of regulated output current.
• Low Dropout Voltage: Maintains regulation with a minimal difference between input and output voltage.
• Fixed 2.5V Output: Delivers a precise and stable 2.5V output.
• Overcurrent Protection: Protects the regulator and connected devices from excessive current draw.
• Thermal Shutdown: Shuts down the regulator to prevent damage from overheating.
• Stable with Ceramic Output Capacitors: Designed for stable operation with low-ESR ceramic capacitors.

Benefits:

• Stable and Reliable Power: Ensures a consistent and dependable 2.5V power supply.
• Enhanced System Protection: Overcurrent and thermal protection enhance overall system reliability.
• High Efficiency: Low dropout voltage helps to minimize power losses and improve efficiency.
• Simplified Design: Fixed output voltage and stable operation with ceramic capacitors simplify circuit design.

Technical Specifications:

The SPX2815T-2.5 operates with an input voltage range typically from 2.7V up to 16V, delivering a regulated 2.5V output. The dropout voltage is typically less than 1V at 1.5A output current. The regulator is designed for stable operation with ceramic output capacitors, typically in the range of 10µF to 100µF. It is available in a TO-220 package, allowing for effective heat dissipation. The operating temperature range is generally between -40°C and +125°C.