The BL1084B-33 is a Low Dropout (LDO) positive voltage regulator manufactured by SHANGHAI BELLING CO., LTD. It's designed to provide a stable 3.3V output voltage from a higher input voltage, with a low dropout voltage. This makes it suitable for applications where the input voltage is close to the desired output voltage.

Applications

• Microcontroller Power Supplies: Providing a stable and regulated 3.3V supply for microcontrollers and other digital ICs.
• Post-Regulation for Switching Power Supplies: Reducing noise and ripple from switching power supplies to provide a clean and stable output voltage.
• Battery-Powered Devices: Regulating the voltage from batteries in portable devices to ensure consistent performance as the battery discharges.
• Linear Power Supplies: Serving as the core voltage regulation component in linear power supply designs.
• Industrial Control Systems: Providing a reliable 3.3V power supply for sensors, actuators, and other components in industrial automation.
• Consumer Electronics: Used in various consumer electronic products, such as set-top boxes, routers, and audio equipment.

Features

• Low Dropout Voltage: Maintains a stable output voltage even when the input voltage is close to the output voltage.
• 3.3V Fixed Output Voltage: Provides a precise and stable 3.3V output voltage.
• High Output Current Capability: Delivers a specified output current to power various electronic circuits. (Specific current rating would need to be confirmed via datasheet)
• Thermal Overload Protection: Protects the regulator from damage due to excessive heat.
• Short Circuit Protection: Protects the regulator and the connected load from damage due to short circuits.
• Over Voltage Protection: Provides protection against over voltage conditions.
• Stable with Ceramic Output Capacitors: Designed to be stable with low-ESR ceramic output capacitors, reducing the need for bulky electrolytic capacitors.
• Available in Various Packages: Offered in different package options for easy integration into various circuit board layouts.

Benefits

• Stable Output Voltage: Provides a stable and regulated 3.3V output voltage, ensuring reliable operation of connected devices.
• Improved Efficiency: Low dropout voltage improves efficiency, especially in battery-powered applications.
• Protection Features: Thermal overload and short circuit protection enhance the reliability and lifespan of the regulator and connected components.
• Simplified Design: Stable with ceramic output capacitors simplifies circuit design and reduces component count.
• Cost-Effective Solution: Offers a cost-effective solution for providing regulated 3.3V power in various electronic applications.

Additional Details

The BL1084B-33 requires an input voltage greater than its dropout voltage plus the output voltage (3.3V). The specific dropout voltage, maximum input voltage, output current, and thermal resistance are important parameters to consider for proper operation. Designers should consult the SHANGHAI BELLING CO., LTD. datasheet to ensure that the regulator meets the requirements of their specific application.