The SP6641BEK-L-3.3/TR is a 3.3V fixed-output voltage regulator manufactured by Exar Corporation. It's engineered to provide a consistent and reliable power source for a range of electronic devices. Part of the Exar power management ICs family, the SP6641BEK-L-3.3 is valued for its energy efficiency and robust design.

Applications

• Microcontroller Power: Delivers regulated 3.3V power to microcontrollers in embedded systems.
• Memory Modules: Powers various memory types requiring 3.3V, such as SDRAM and Flash memory.
• Sensor Circuits: Provides stable voltage for sensors and signal conditioning circuits.
• Portable Electronics: Used in devices such as smartphones, tablets, and handheld gaming consoles.
• Interface Circuits: Powers communication interfaces like UART, SPI, and I2C.

Features

• Fixed 3.3V Output: Delivers a consistent and precise 3.3V regulated output.
• High Efficiency: Reduces power dissipation, extending battery life in portable devices.
• Over-Current Protection: Safeguards the regulator and the load from excessive current.
• Thermal Shutdown: Shuts down the regulator when overheating, preventing damage.
• Low Dropout Voltage: Maintains regulation with low input voltage, maximizing battery life.
• Enable/Disable Control: Allows turning the regulator on or off for power saving purposes.

Benefits

• Reliable Power Supply: Ensures a consistent 3.3V supply, enhancing the stability of electronic systems.
• Extended Battery Life: Its high efficiency minimizes power consumption, extending battery life in portable applications.
• Simplified Design: Easy to use due to the fixed output voltage and integrated protection.
• Protection Features: Over-current protection and thermal shutdown prevent damage to the regulator and the load.
• Reduced System Cost: Integrated features reduce the need for external components, lowering overall system cost.

Additional Details

The SP6641BEK-L-3.3/TR is typically available in a small surface-mount package, suitable for high-density circuit board layouts. The '/TR' suffix usually indicates that the part is provided in tape and reel packaging for automated assembly. The 'L' designation might indicate a specific package or feature variation, so consulting the official datasheet is important. Detailed specifications regarding input voltage range, output current capability, and thermal resistance can be found in the Exar Corporation datasheet for this part. It is crucial to consult the datasheet for specific application requirements and design guidelines.