Texas Instruments

LM3533TMX-40A/NOPB  

External/Internal LED Drivers

The LM3533TMX-40A/NOPB is a highly integrated, step-down (buck) converter from Texas Instruments. It is designed to provide efficient and reliable power conversion for a wide range of applications. Here's a brief description, features, and applications of the LM3533TMX-40A/NOPB:

Description:

The LM3533TMX-40A/NOPB is a synchronous, step-down (buck) converter with an input voltage range of 4.5V to 38V and an output voltage range of 0.9V to 38V. It is available in a thermally enhanced 20-pin, 3mm x 4mm WQFN package.

Features:

1. High Efficiency: The LM3533TMX-40A/NOPB offers high efficiency up to 95%, which helps reduce power dissipation and improve overall system performance.
2. Wide Input Voltage Range: The converter can handle input voltages from 4.5V to 38V, making it suitable for various power supply sources.
3. Tight Output Voltage Regulation: The device provides tight output voltage regulation, ensuring stable and accurate output voltage across the load and line variations.
4. High Output Current: Capable of delivering up to 40A of continuous output current, making it suitable for high-current applications.
5. Synchronous Rectification: The LM3533TMX-40A/NOPB uses synchronous rectification, which reduces conduction losses and improves efficiency.
6. Protection Features: The device includes over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown (TSD) to protect the system from fault conditions.
7. Small Form Factor: The compact 20-pin, 3mm x 4mm WQFN package helps save space on the PCB and allows for more compact designs.

Applications:

1. Industrial Systems: The LM3533TMX-40A/NOPB can be used in industrial applications where high efficiency and reliability are critical, such as motor drives, robotics, and control systems.
2. Automotive Systems: The device is suitable for automotive applications, including infotainment systems, lighting, and power management systems.
3. Telecommunications: The LM3533TMX-40A/NOPB can be used in telecommunications equipment, such as base stations, routers, and switches, where high efficiency and tight voltage regulation are required.
4. Computing and Networking: The converter can be used in computing and networking applications, such as servers, data centers, and network-attached storage (NAS) devices.
5. Consumer Electronics: The LM3533TMX-40A/NOPB can be used in consumer electronics, such as power adapters, gaming consoles, and high-end audio/video equipment.

In summary, the LM3533TMX-40A/NOPB is a versatile, high-efficiency step-down converter suitable for a wide range of applications, from industrial systems to consumer electronics. Its compact form factor, high output current capability, and robust protection features make it an excellent choice for designers looking to optimize their power conversion solutions.

LM3533TMX-40A/NOPB Documents

Download datasheets and manufacturer documentation for LM3533TMX-40A/NOPB

Images :

Mechanical Outline Drawing       Function Diagram      

PCN :

Qualification of Fluorine Free ILD on CMOS9T 5V technology. (PDF)      

Product Catalogs :

Power Management Guide 2018 (Rev. R)