STMicroelectronics

L4941BDT  

Linear & Switching Voltage Regulators

L4941BDT Description

The L4941BDT is a linear voltage regulator IC manufactured by STMicroelectronics, designed to provide a fixed 5V output with a maximum current of 1A. It features a positive output configuration and is packaged in a DPAK (Dual Power Array Package). The device is surface-mountable and has a moisture sensitivity level of 1 (unlimited), indicating it can be stored and handled without special precautions regarding moisture. It is compliant with the RoHS3 directive and is REACH unaffected, making it suitable for environmentally conscious applications.

L4941BDT Features

• Fixed Output Voltage: The L4941BDT provides a stable 5V output, ideal for applications requiring a consistent voltage supply.
• 1A Output Current: Capable of delivering up to 1A, making it suitable for a variety of power requirements.
• Voltage Dropout: The maximum dropout voltage is 0.7V @ 1A, ensuring efficient operation even under load.
• PSRR: Offers a power supply rejection ratio of 68dB at 120Hz, providing excellent noise filtering.
• Protection Features: Includes over-temperature, reverse polarity, and short circuit protection, enhancing reliability and safety.
• Low Quiescent Current: With an Iq of 8mA, it minimizes power consumption in standby modes.

L4941BDT Applications

The L4941BDT is ideal for applications where a stable and reliable 5V supply is needed, such as:

• Portable Electronics: Due to its low quiescent current, it is suitable for battery-powered devices.
• Industrial Controls: Its robust protection features make it a good choice for industrial environments.
• Telecommunications: The L4941BDT can be used in telecommunications equipment for stable power supply.
• Automotive Electronics: Given its ability to handle reverse polarity and short circuits, it is suitable for automotive applications.

Conclusion of L4941BDT

While the L4941BDT is an obsolete product, it was once a popular choice for applications requiring a stable 5V, 1A output. Its fixed output, low dropout voltage, and robust protection features made it a reliable option for a variety of electronic devices. Although it may no longer be in production, understanding its specifications can help in identifying suitable replacements or understanding the design requirements for similar voltage regulators.

L4941BDT Documents

Download datasheets and manufacturer documentation for L4941BDT

Datasheets :

L4941      

HTML Datasheet :

L4941