Texas Instruments

LM5109BSDX/NOPB

The LM5109 from Texas Instruments is a highly integrated step-down (buck) converter with a wide input voltage range of 4.5V to 28V. It is available in a compact 10-pin MSOP package and is designed for applications requiring high efficiency and low quiescent current.

Description:

The LM5109 is a synchronous step-down (buck) converter that can deliver up to 3A of continuous output current. It features a high-efficiency topology with a wide input voltage range, making it suitable for a variety of applications. The device also includes built-in protection features such as over-current protection, over-temperature protection, and output short-circuit protection.

Features:

• Wide input voltage range: 4.5V to 28V
• High efficiency: up to 95% efficiency
• High output current: up to 3A
• Compact 10-pin MSOP package
• Built-in protection features: over-current protection, over-temperature protection, and output short-circuit protection
• Low quiescent current: 35µA (typical)

Applications:

The LM5109 is suitable for a wide range of applications that require a highly efficient, compact, and reliable step-down converter. Some potential applications include:

1. Portable devices: The LM5109's high efficiency and low quiescent current make it ideal for use in battery-powered devices such as smartphones, tablets, and wearables.
2. Industrial equipment: The wide input voltage range and built-in protection features make the LM5109 suitable for use in industrial equipment that requires a stable and reliable power supply.
3. Medical devices: The LM5109's compact size and low quiescent current make it well-suited for use in battery-powered medical devices that require a stable and efficient power supply.
4. Automotive applications: The LM5109's wide input voltage range and high efficiency make it suitable for use in automotive applications such as infotainment systems, GPS devices, and in-vehicle communication systems.

Overall, the LM5109 from Texas Instruments is a versatile and efficient step-down converter that is well-suited for a variety of applications requiring a stable and reliable power supply.