Texas Instruments

TPS2421-1DDAR  

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The TPS2421-1DDAR is a high-efficiency, synchronous, step-down (buck) switching regulator from Texas Instruments. It is designed to provide efficient and stable power conversion for a wide range of applications. Here is a description of the TPS2421-1DDAR, including its features and applications:

Description:

The TPS2421-1DDAR is a compact, high-efficiency, synchronous, step-down switching regulator that can operate from an input voltage range of 4.75V to 23V. It is available in a small, thermally enhanced DDAR package, making it suitable for space-constrained applications. The device features a wide output voltage range of 0.9V to 5.5V and can deliver a continuous output current of up to 2A.

Features:

1. High Efficiency: The TPS2421-1DDAR offers high efficiency up to 95%, depending on the input voltage and output current requirements.
2. Wide Input Voltage Range: It can operate from an input voltage range of 4.75V to 23V, making it suitable for various power supply sources.
3. Wide Output Voltage Range: The device can generate an output voltage between 0.9V and 5.5V, providing flexibility for different load requirements.
4. High Output Current: The TPS2421-1DDAR can deliver a continuous output current of up to 2A, suitable for powering demanding loads.
5. Synchronous Rectification: The device uses synchronous rectification, which improves efficiency by reducing conduction losses in the output stage.
6. Thermal Protection: The TPS2421-1DDAR features thermal shutdown and over-temperature protection to ensure safe operation and prevent damage due to overheating.
7. Small Package: The device is available in a compact DDAR package, making it suitable for space-constrained applications.
8. Programmable Soft Start: The soft-start feature can be programmed to reduce inrush current during power-up.
9. Enable/Disable Control: The device can be enabled or disabled using an external control signal, allowing for efficient power management.

Applications:

1. Portable Electronics: The TPS2421-1DDAR can be used to power portable devices such as smartphones, tablets, and wearable devices.
2. Industrial Equipment: The device can be used in industrial applications where efficient power conversion is required, such as in motor drives and control systems.
3. Medical Devices: The TPS2421-1DDAR can be used in battery-powered medical devices, providing efficient and stable power conversion.
4. Consumer Electronics: The device can be used in various consumer electronics applications, such as power supplies for home appliances, gaming consoles, and set-top boxes.
5. Automotive Applications: The TPS2421-1DDAR can be used in automotive applications, such as infotainment systems and power management for electric vehicles.

In summary, the TPS2421-1DDAR is a versatile, high-efficiency, synchronous step-down switching regulator that offers a wide input voltage range, high output current capability, and a compact package size. It is suitable for a wide range of applications, including portable electronics, industrial equipment, medical devices, consumer electronics, and automotive applications.

TPS2421-1DDAR Documents

Download datasheets and manufacturer documentation for TPS2421-1DDAR

Datasheets :

TPS2421-(1,2)      

HTML Datasheet :

TPS2421-(1,2)      

PCN Design/Specification :

Die Attach Update RevB1 18/Apr/2017       Die Attach Rev B 1/Mar/2017