onsemi

NCV4949DR2G

NCV4949DR2G Description

The NCV4949DR2G is a linear regulator designed for automotive applications, offering a fixed output voltage of 5V and a maximum output current of 100mA. Manufactured by onsemi, this device is part of the Power Management Integrated Circuits (PMIC) category and is housed in an 8SOIC package. It features a maximum input voltage of 28V and a low dropout voltage of 0.5V at 100mA, making it suitable for applications where input voltage variations are common. The regulator includes protection features such as over-temperature and short-circuit protection, ensuring robust performance and reliability. Despite being marked as obsolete, the NCV4949DR2G remains a viable option for legacy systems and specific applications where its unique features are advantageous.

NCV4949DR2G Features

• Fixed Output Voltage: Provides a stable 5V output, ideal for powering various electronic components.
• High Input Voltage Range: Capable of handling input voltages up to 28V, making it suitable for automotive environments with wide voltage fluctuations.
• Low Dropout Voltage: With a maximum dropout voltage of 0.5V at 100mA, the NCV4949DR2G ensures efficient power conversion even at low input-to-output voltage differentials.
• Protection Features: Incorporates over-temperature and short-circuit protection, enhancing reliability and preventing damage in adverse conditions.
• Reset Control Feature: Offers a reset function, allowing for controlled power sequencing and system resets.
• Low Quiescent Current: Consumes only 260 µA in quiescent mode, minimizing power loss and extending battery life in low-power applications.
• Surface Mount Packaging: Available in a surface mount 8SOIC package, facilitating easy integration into compact and space-constrained designs.
• Automotive Grade: Certified for automotive applications, ensuring compliance with stringent industry standards and reliability requirements.

NCV4949DR2G Applications

The NCV4949DR2G is particularly well-suited for automotive applications due to its robust design and wide input voltage range. It is ideal for powering electronic control units (ECUs), infotainment systems, and other automotive electronics that require a stable 5V supply. Its low dropout voltage and protection features make it a reliable choice for systems that operate in harsh environments with varying input voltages. Additionally, the reset control feature allows for seamless integration into systems requiring controlled power sequencing, such as those with microcontrollers or other sensitive components.

Conclusion of NCV4949DR2G

The NCV4949DR2G stands out as a reliable and efficient linear regulator, especially for automotive applications. Its combination of a fixed 5V output, wide input voltage range, and low dropout voltage ensures stable and efficient power delivery. The inclusion of over-temperature and short-circuit protection further enhances its robustness, making it suitable for demanding environments. Although marked as obsolete, the NCV4949DR2G remains a valuable component for legacy systems and specific applications where its unique features provide significant advantages. Its surface mount packaging and automotive grade certification make it an ideal choice for modern automotive electronics, ensuring compliance with industry standards and reliability requirements.