Texas Instruments

LM3409QMY/NOPB  

External/Internal LED Drivers

The LM3409QMY/NOPB is a high-efficiency step-down (buck) switching regulator from Texas Instruments. It is designed to provide a stable and regulated output voltage from a higher input voltage source. Here is a brief description of the model, its features, and applications:

Model Description:

The LM3409QMY/NOPB is a monolithic step-down switching regulator that integrates a power MOSFET, an inductor, and a capacitor to provide efficient power conversion. It operates with a wide input voltage range and offers a high step-down voltage conversion ratio, making it suitable for various power management applications.

Features:

1. High Efficiency: The LM3409QMY/NOPB is designed for high efficiency, which can significantly reduce power dissipation and improve thermal performance.
2. Wide Input Voltage Range: It can operate with a wide range of input voltages, making it suitable for applications with varying power supply conditions.
3. High Step-Down Voltage Conversion Ratio: The device can handle a high step-down ratio, allowing it to step down from higher input voltages to lower output voltages effectively.
4. Integrated Power MOSFET: The power MOSFET is integrated into the device, reducing the need for external components and simplifying the design.
5. Soft-Start Feature: The regulator includes a soft-start feature to minimize inrush current and reduce stress on the input power source.
6. Overcurrent and Thermal Protection: The LM3409QMY/NOPB includes protection against overcurrent conditions and thermal overload, enhancing the reliability and safety of the system.
7. Synchronization Capability: It can be synchronized with an external clock signal, allowing for better integration into systems with multiple power rails.
8. Small Form Factor: The device is available in a compact package, making it suitable for space-constrained applications.

Applications:

1. Portable Electronics: Due to its efficiency and wide input voltage range, the LM3409QMY/NOPB is ideal for powering portable electronic devices like smartphones, tablets, and wearables.
2. Power Supplies: It can be used in battery-powered applications where a stable and regulated output voltage is required.
3. Industrial Control Systems: The device's robust protection features make it suitable for use in industrial control systems where reliability is critical.
4. Medical Equipment: The LM3409QMY/NOPB can be used in medical equipment that requires a stable power supply with built-in safety features.
5. Telecommunications: It can be used in telecommunications equipment to provide a regulated power supply for sensitive components.

The LM3409QMY/NOPB is a versatile and efficient step-down regulator that can be used in a wide range of applications where a stable and regulated output voltage is required. Its high efficiency, integrated components, and protection features make it a popular choice for power management in various electronic devices.

LM3409QMY/NOPB Documents

Download datasheets and manufacturer documentation for LM3409QMY/NOPB

Datasheets :

LM3409(HV) Datasheet      

Reference Design Library :

LM3409EVAL: 1A @ 15V MAx, 6 ~ 42V in      

Design Resources :

Lighting Product Selector