The SPX1202M3-3.3 is a low dropout (LDO) linear regulator manufactured by Sipex Corporation (now Exar Corporation, which is now part of Renesas Electronics). It is designed to provide a stable and regulated 3.3V output voltage from a higher input voltage with minimal voltage drop, ensuring efficient power delivery to connected devices. These regulators are known for providing a stable output even when the input voltage is close to the output voltage, and have overcurrent and thermal protection.

Applications

• Mobile phones and smartphones
• Portable media players
• PDAs (Personal Digital Assistants)
• Digital cameras
• Wireless communication devices
• Microcontroller power supplies

Features

• Fixed output voltage of 3.3V: Regulates to a consistent 3.3V supply.
• Low dropout voltage: Operates effectively with a minimal difference between input and output voltages.
• Low quiescent current: Minimizes power consumption in standby or light load conditions.
• Overcurrent protection: Protects the regulator from excessive current and potential damage.
• Thermal shutdown: Shuts down the regulator when the junction temperature exceeds safe limits to prevent damage.
• Small outline package: Suitable for high-density PCB layouts and space-constrained applications.

Benefits

• Extended battery life: Low quiescent current ensures minimal power wastage, maximizing battery performance.
• Stable performance: Regulated output voltage guarantees consistent operation of connected devices.
• Enhanced reliability: Overcurrent and thermal protection provide safeguard against common electrical issues.
• Design flexibility: Small package size fits easily into compact electronic devices.

Additional Details

The SPX1202M3-3.3 LDO regulator is typically available in a SOT-23 package. It requires external capacitors for input and output stabilization, as specified in the datasheet. The maximum input voltage and output current ratings must be adhered to for optimal performance and safety. Proper thermal management is crucial, especially when operating at high input voltages and output currents. The device’s small form factor makes it suitable for a variety of battery-powered applications where space is at a premium. The SPX1202M3-3.3 is designed for reflow soldering and adheres to industry standards for lead-free manufacturing. The operating temperature ranges between -40°C to +85°C. It offers a reliable and efficient solution for providing a stable 3.3V supply in portable electronic devices.