Texas Instruments

TPS56428RHLR

The TPS56428RHLR is a high-efficiency synchronous buck-boost converter from Texas Instruments. It is designed to provide a regulated output voltage from input voltages that can be higher or lower than the desired output voltage. This makes it ideal for a wide range of applications, including battery-powered systems, portable devices, and power supplies.

Description:

The TPS56428RHLR is a highly integrated, high-efficiency synchronous buck-boost converter that can operate in step-up, step-down, or inverting modes. It features a wide input voltage range, low quiescent current, and a high efficiency of up to 97%. The device is available in a compact 16-pin QFN package.

Features:

1. Wide input voltage range: The TPS56428RHLR can operate with input voltages from 2.5V to 22V, making it suitable for a wide range of applications.
2. High efficiency: The device achieves high efficiency of up to 97%, which helps to minimize power dissipation and improve overall system efficiency.
3. Synchronous rectification: The TPS56428RHLR uses synchronous rectification to improve efficiency and reduce power losses during the conversion process.
4. Low quiescent current: The device has a low quiescent current of 2.5uA, which helps to extend battery life in portable applications.
5. Programmable soft-start: The soft-start feature allows for easy inrush current control and reduces the risk of overshoot during power-up.
6. Protection features: The TPS56428RHLR includes over-current protection, over-voltage protection, and thermal shutdown protection to ensure safe and reliable operation.

Applications:

1. Portable devices: The TPS56428RHLR is ideal for powering portable devices such as smartphones, tablets, and wearables, where efficiency and compact size are crucial.
2. Battery-powered systems: The device can be used in battery-powered systems to extend battery life and improve overall system efficiency.
3. Power supplies: The TPS56428RHLR can be used in power supply applications where a regulated output voltage is required from an input voltage that can be higher or lower than the desired output voltage.
4. Automotive applications: The device can be used in automotive applications, such as infotainment systems and power management systems, where a wide input voltage range and high efficiency are required.
5. Industrial applications: The TPS56428RHLR can be used in industrial applications where a compact, efficient, and reliable power conversion solution is needed.

In summary, the TPS56428RHLR from Texas Instruments is a high-efficiency synchronous buck-boost converter that offers a wide input voltage range, high efficiency, low quiescent current, and robust protection features. It is suitable for a wide range of applications, including portable devices, battery-powered systems, power supplies, automotive applications, and industrial applications.