Texas Instruments

LM3642TLX/NOPB  

External/Internal LED Drivers

The LM3642TLX/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:

Description:

The LM3642TLX/NOPB is a monolithic step-down switching regulator that integrates a power MOSFET, a current sense resistor, and an error amplifier into a single chip. It operates with a wide input voltage range and can deliver a high output current with excellent load and line regulation.

Features:

1. High Efficiency: The device is designed for high efficiency, which can be crucial in battery-powered applications to extend battery life.
2. Wide Input Voltage Range: It can handle a wide range of input voltages, making it suitable for various power supply scenarios.
3. High Output Current: Capable of delivering high output currents, making it suitable for applications that require significant power.
4. Integrated Power MOSFET: The power MOSFET is integrated into the device, reducing the need for external components and simplifying the design.
5. Current Sense Resistor: The current sense resistor is also integrated, which is important for feedback and control purposes.
6. Error Amplifier: The integrated error amplifier allows for precise regulation of the output voltage.
7. Thermal Protection: It includes thermal shutdown protection to prevent damage due to overheating.
8. Small Package: The LM3642TLX/NOPB comes in a small package, which is beneficial for space-constrained applications.

Applications:

1. Portable Electronics: Due to its high efficiency and wide input voltage range, it's suitable for use in portable devices like smartphones and laptops.
2. Power Supplies: It can be used in a variety of power supply applications, including those that require a stable output voltage from a fluctuating or noisy input.
3. Industrial Equipment: The device's robustness and thermal protection make it suitable for use in industrial equipment where reliability is crucial.
4. Medical Devices: In medical devices where a stable power supply is critical, the LM3642TLX/NOPB can provide the necessary regulation.
5. LED Lighting: It can be used in LED lighting applications for efficient power conversion and control.

When using the LM3642TLX/NOPB or any other switching regulator, it's important to carefully read the datasheet and design the (peripherals) accordingly to ensure the device operates within its specified parameters and to achieve the desired performance.

LM3642TLX/NOPB Documents

Download datasheets and manufacturer documentation for LM3642TLX/NOPB

PCN Assembly/Origin :

Wafer Process BCB Elimnation 12/Feb/2014      

Datasheets :

LM3642      

Design Resources :

Lighting Product Selector      

HTML Datasheet :

LM3642