Texas Instruments

LM4990MMX/NOPB

The LM4990MMX/NOPB is a high-efficiency, synchronous, step-down switching regulator from Texas Instruments. It is designed to provide a stable output voltage from a wide input voltage range, making it suitable for a variety of applications.

Description:

The LM4990MMX/NOPB is a highly integrated, high-efficiency synchronous step-down converter with a wide input voltage range of 4.5V to 28V. It is available in a thermally enhanced 5mm x 6mm QFN package.

Features:

1. High Efficiency: The LM4990MMX/NOPB offers high efficiency of up to 98%, which helps to reduce power dissipation and improve overall system performance.
2. Wide Input Voltage Range: The device can operate from a wide input voltage range of 4.5V to 28V, making it suitable for a variety of applications.
3. Synchronous Rectification: The LM4990MMX/NOPB uses synchronous rectification to improve efficiency and reduce switching losses.
4. Programmable Output Voltage: The output voltage can be programmed using an external resistor divider, allowing for flexibility in system design.
5. Protection Features: The device includes over-current protection, over-temperature protection, and output short-circuit protection to ensure reliable operation.
6. Small Package Size: The LM4990MMX/NOPB is available in a compact 5mm x 6mm QFN package, making it suitable for space-constrained applications.

Applications:

The LM4990MMX/NOPB is suitable for a variety of applications, including:

1. Portable Electronics: The high efficiency and wide input voltage range make it ideal for use in portable electronics, such as smartphones, tablets, and laptops.
2. Industrial Equipment: The device can be used in industrial equipment that requires a stable output voltage from a wide input voltage range.
3. Medical Devices: The LM4990MMX/NOPB can be used in medical devices that require a stable and reliable power supply.
4. Automotive Applications: The device can be used in automotive applications, such as infotainment systems and power management systems.

In summary, the LM4990MMX/NOPB is a high-efficiency, synchronous step-down switching regulator from Texas Instruments that offers a wide input voltage range, programmable output voltage, and protection features. It is suitable for a variety of applications, including portable electronics, industrial equipment, medical devices, and automotive applications.