STMicroelectronics

L99LD21Q6TR

L99LD21Q6TR Description

The L99LD21Q6TR is a high-performance, automotive-grade DC-DC regulator designed and manufactured by STMicroelectronics. This robust component is specifically engineered for lighting applications, offering a versatile solution for various electronic systems. With its active internal switches and dual output capability, the L99LD21Q6TR stands out as a reliable choice for demanding applications.

L99LD21Q6TR Features

• Voltage Supply Range: The L99LD21Q6TR operates within a wide voltage supply range of 5.5V to 24V, ensuring compatibility with various power sources.
• Output Voltage: It delivers an output voltage of up to 50V, suitable for high-voltage lighting systems.
• Dual Outputs: With two outputs, this regulator can handle complex lighting setups requiring multiple power rails.
• Switching Topology: Incorporates both buck and boost topologies, providing flexibility in voltage conversion.
• Frequency Range: Operates within a frequency range of 100kHz to 450kHz, catering to different design requirements.
• PWM Dimming: Supports PWM dimming, allowing for precise control over lighting intensity.
• Current Output: Each channel can handle up to 1.5A, making it suitable for high-current applications.
• Mounting Type: Surface mount design for easy integration into PCB layouts.
• Moisture Sensitivity Level (MSL): Rated at MSL 3, indicating it can withstand up to 168 hours of moisture exposure before baking is required.
• RoHS Compliance: Compliant with RoHS3 standards, ensuring environmental friendliness.
• REACH Status: Unaffected by REACH regulations, indicating compliance with chemical restrictions in the European Union.
• ECCN and HTSUS Codes: Classified under EAR99 and HTSUS 8542.39.0001 for export control purposes.

L99LD21Q6TR Applications

The L99LD21Q6TR is ideal for a variety of lighting applications, particularly in the automotive sector where reliability and performance are paramount. Some specific use cases include:

• Automotive Headlights: For high-intensity discharge (HID) or LED headlights, providing stable and regulated power.
• Interior Cabin Lighting: Ensuring consistent and adjustable lighting for a comfortable driving experience.
• External Lighting Systems: Powering, brake lights, and other external lighting elements with precision control.
• Industrial Lighting: In harsh environments where robustness and reliability are essential, such as in manufacturing facilities or construction equipment.

Conclusion of L99LD21Q6TR

The L99LD21Q6TR from STMicroelectronics is a versatile and powerful DC-DC regulator designed for demanding lighting applications. Its wide voltage range, dual outputs, and PWM dimming capabilities make it an excellent choice for automotive and industrial lighting systems. With its automotive grade and compliance with environmental standards, the L99LD21Q6TR offers a reliable and eco-friendly solution for high-performance lighting requirements.