Texas Instruments

TPS54821RHLR

TPS54821RHLR is a high-efficiency synchronous buck converter developed by Texas Instruments. It is designed to provide a highly efficient and compact solution for step-down voltage conversion in a wide range of applications.

Description:

The TPS54821RHLR is a highly integrated, high-efficiency synchronous buck converter that operates from an input voltage range of 4.5V to 22V and can deliver an output voltage as low as 0.9V. It is available in a compact 20-pin HTSSOP package.

Features:

1. High Efficiency: The TPS54821RHLR offers high efficiency of up to 95%, making it suitable for battery-powered applications where power consumption is critical.
2. Wide Input Voltage Range: The converter can operate from an input voltage range of 4.5V to 22V, making it suitable for a wide range of applications.
3. Low Output Voltage: The converter can deliver an output voltage as low as 0.9V, making it suitable for low-voltage applications.
4. Synchronous Rectification: The TPS54821RHLR uses synchronous rectification, which reduces the conduction losses and improves efficiency.
5. Integrated Power MOSFETs: The converter features integrated power MOSFETs, which reduces the number of external components required and saves space on the PCB.
6. Protection Features: The TPS54821RHLR includes various protection features such as over-current protection, over-voltage protection, and thermal shutdown.

Applications:

The TPS54821RHLR is suitable for a wide range of applications that require efficient step-down voltage conversion. Some of the key applications include:

1. Portable Electronics: The high efficiency and low output voltage make it suitable for portable electronic devices such as smartphones, tablets, and laptops.
2. Industrial Control Systems: The wide input voltage range and integrated protection features make it suitable for industrial control systems that require a stable and reliable power supply.
3. Automotive Applications: The TPS54821RHLR can be used in automotive applications such as infotainment systems, instrument clusters, and lighting systems.
4. LED Lighting: The high efficiency and low output voltage make it suitable for LED lighting applications where precise voltage regulation is required.
5. Telecommunications: The converter can be used in telecommunications equipment such as routers, switches, and base stations to provide a stable and efficient power supply.

In summary, the TPS54821RHLR is a highly efficient and compact synchronous buck converter that offers a wide input voltage range, low output voltage, and integrated protection features. It is suitable for a wide range of applications, including portable electronics, industrial control systems, automotive applications, LED lighting, and telecommunications.