The SPX2810AR-2.5 is a low dropout (LDO) voltage regulator manufactured by Sipex Corporation (later acquired by Exar Corporation, now part of MaxLinear). This regulator is designed to provide a stable and accurate 2.5V output voltage with a dropout voltage of typically 300mV at 1A. It is suitable for a wide range of applications requiring a regulated 2.5V supply, especially in battery-powered devices and systems with tight voltage tolerances.

Applications:

• Battery-Powered Systems: Including laptops, PDAs, and other portable devices.
• Post Regulation for Switching Power Supplies: Used to filter output ripple and improve voltage accuracy.
• Microprocessor and DSP Power Supplies: Provides a clean and stable power source for sensitive digital components.
• Consumer Electronics: Such as set-top boxes, DVD players, and other home entertainment devices.
• Instrumentation and Control Systems: Powers analog and digital circuitry requiring stable voltage regulation.

Features:

• Low Dropout Voltage: Operates with a low input-to-output voltage differential, extending battery life.
• High Output Accuracy: Provides a precise 2.5V output voltage with low tolerance.
• Over-Current and Over-Temperature Protection: Protects the regulator and connected circuitry from damage.
• Shutdown Control: Allows the regulator to be turned off, reducing power consumption in standby mode.
• Stable with Ceramic Capacitors: Designed to operate reliably with low-ESR ceramic output capacitors.

Benefits:

• Extended Battery Life: Low dropout voltage and shutdown feature contribute to increased battery runtime.
• Improved System Reliability: Protection features safeguard against over-current and over-temperature conditions.
• Enhanced Performance: Precise voltage regulation ensures optimal operation of sensitive electronic components.
• Simplified Design: Stable operation with ceramic capacitors reduces component count and simplifies layout.
• Reduced Power Consumption: Low quiescent current minimizes power loss in idle mode.

Technical Specifications: The SPX2810AR-2.5 operates with an input voltage range of 2.7V to 10V and provides a fixed output voltage of 2.5V. It can deliver up to 1A of output current. The dropout voltage is typically 300mV at 1A. It is available in a TO-252 package. The operating temperature range is -40°C to +125°C.