The BL1117-12CY is a low dropout (LDO) voltage regulator manufactured by SHANGHAI BELLING CO., LTD. It is designed to provide a stable and regulated 1.2V output voltage from a higher input voltage. This regulator is suitable for various applications where a precise and stable voltage source is required.

Applications

• Microcontroller power supplies
• Post-regulation for switching power supplies
• Battery-powered devices
• Portable electronics
• Linear regulators for noise-sensitive applications
• Power management in embedded systems

Features

• Low dropout voltage
• 1.2V fixed output voltage
• High output accuracy
• Overcurrent protection
• Overtemperature protection
• Short-circuit protection
• Available in various packages (e.g., SOT-223)

Benefits

• Provides a stable and accurate 1.2V output voltage for sensitive electronic components.
• Operates with low dropout voltage, allowing for efficient regulation even when the input voltage is close to the output voltage.
• Protects the circuit from overcurrent, overtemperature, and short-circuit conditions.
• Enhances the reliability and lifespan of electronic devices.
• Suitable for a wide range of applications due to its versatile features.
• Simplifies power supply design with its integrated protection features.

Technical Specifications

The BL1117-12CY is designed to deliver a fixed 1.2V output voltage with high accuracy. It typically features a low dropout voltage, meaning it can maintain regulation even when the input voltage is only slightly higher than the output voltage. The regulator includes built-in protection features such as overcurrent protection, overtemperature protection, and short-circuit protection. These features protect the regulator and the connected circuitry from damage due to excessive current, high temperatures, or short circuits. The BL1117-12CY is often available in surface-mount packages like SOT-223, allowing for easy integration into modern electronic devices.

This LDO regulator is commonly used in applications where a stable and precise 1.2V voltage source is required, such as powering microcontrollers, sensors, and other sensitive electronic components. Its low dropout voltage and integrated protection features make it a reliable choice for battery-powered devices and other applications where efficiency and protection are critical.