STMicroelectronics

L6911D

L6911D Description

The L6911D is a Buck topology transistor driver designed for power management applications. Manufactured by STMicroelectronics, this IC offers a comprehensive set of control features and is optimized for high efficiency and reliability. With a switching frequency of 200kHz, the L6911D is capable of delivering stable power output within a supply voltage range of 5V to 12V. The device is housed in a 20SOIC package and is suitable for surface mount applications, making it ideal for compact and high-density designs.

L6911D Features

• Output Type: Transistor Driver
• Output Configuration: Positive
• Switching Frequency: 200kHz
• Supply Voltage Range: 5V to 12V
• Operating Temperature: 0°C to 125°C (TJ)
• Control Features: Current Limit, Frequency Control, Phase Control, Power Good, Soft Start
• Synchronous Rectifier: Yes
• Duty Cycle (Max): 100%
• Output Phases: 1
• Moisture Sensitivity Level (MSL): 3 (168 Hours)
• Package: Tube
• Compliance: REACH Unaffected, ROHS3 Compliant

The L6911D stands out with its synchronous rectifier feature, which enhances efficiency and reduces power loss. The inclusion of a soft start mechanism ensures a smooth startup process, preventing inrush currents that could damage sensitive components. The wide operating temperature range and robust control features make the L6911D highly reliable and suitable for a variety of industrial and consumer applications.

L6911D Applications

The L6911D is ideal for applications requiring efficient power conversion and stable voltage regulation. Its Buck topology and synchronous rectifier make it particularly well-suited for:

• Power Supplies: Efficiently converting input voltage to a lower, regulated output voltage.
• Battery Chargers: Providing stable charging current and voltage to extend battery life.
• DC-DC Converters: Ensuring high efficiency and minimal power loss in compact designs.
• Telecommunications Equipment: Supplying stable power to sensitive electronic components.
• Industrial Controls: Offering reliable power management in harsh operating conditions.

Conclusion of L6911D

The L6911D from STMicroelectronics is a versatile and efficient Buck topology transistor driver, offering a range of advanced control features and a robust design. Its synchronous rectifier and comprehensive control mechanisms ensure high efficiency and reliability, making it an excellent choice for a variety of power management applications. Despite being marked as obsolete, the L6911D remains a reliable option for engineers seeking a proven solution for their power management needs.