Texas Instruments

TPS544B25RVFR  

DC Switching Voltage Regulators

The Texas Instruments TPS544B25RVFR is a highly integrated synchronous step-down converter that offers high efficiency and high-density power conversion for a wide range of applications. Here's a description of the model, its features, and potential applications:

Model Description:
The TPS544B25RVFR is a member of Texas Instruments' portfolio of power management devices. It is a synchronous step-down converter, also known as a buck converter, which is designed to step down an input voltage to a lower output voltage. This device is specifically designed to operate with an input voltage range of 4.5V to 23V and can provide an output voltage as low as 0.9V.

Features:

1. High Efficiency: The TPS544B25RVFR is designed for high efficiency, which is crucial for battery-powered applications to extend battery life.
2. Synchronous Rectification: It uses synchronous rectification, which reduces conduction losses and improves efficiency, especially at higher input voltages and lower output voltages.
3. Wide Input Voltage Range: Capable of handling input voltages from 4.5V to 23V, making it suitable for a variety of power sources.
4. Low Output Voltage: The device can provide an output voltage as low as 0.9V, which is useful for modern low-voltage applications.
5. High-Density Integration: The device is highly integrated, which allows for a smaller footprint and easier integration into compact designs.
6. Protection Features: It includes various protection features such as over-current protection, over-temperature protection, and thermal shutdown to ensure safe operation.
7. High-Frequency Operation: It operates at high frequencies, which allows for the use of smaller external components and further miniaturization of the power supply.

Applications:

1. Portable Electronics: Due to its efficiency and wide input voltage range, it's ideal for battery-powered devices like smartphones, tablets, and laptops.
2. Industrial Equipment: Can be used in industrial applications where a stable and regulated power supply is required.
3. Telecommunications: Suitable for power management in base stations and other telecom infrastructure.
4. Automotive Systems: The TPS544B25RVFR can be used in various automotive applications, including infotainment systems and advanced driver-assistance systems (ADAS).
5. Medical Devices: For medical equipment that requires a stable and efficient power supply, this device can provide the necessary power conversion.
6. Renal Therapy and Dialysis Equipment: In medical applications where precise voltage regulation is critical, the TPS544B25RVFR can be a good fit.

When using the TPS544B25RVFR or any power management device, it's important to carefully review the datasheet and design guidelines to ensure proper operation and to take full advantage of the device's capabilities.

TPS544B25RVFR Documents

Download datasheets and manufacturer documentation for TPS544B25RVFR

Images :

Mechanical Outline Drawing      

PCN :

Qualify New Assembly Material set for Selected Device(s) (PDF)      

Models :

TPS544B25RVFR Symbol & Footprint by SnapMagic      

Product Catalogs :

PMBus Point-of-Load Quick Reference Guide      

Application Notes :

Analysis and Design of Input Filter for DC-DC Circuit       Maximizing power density and thermal performance in power-module designs       Programming the NVM of PMBus Buck Converters to Support Mass-Production Needs (Rev. B)      

Technical Resources :

TPS544B25 TINA-TI Average Reference Design (Rev. A)       TPS544B25 TINA-TI Average Reference Design      

SPICE Models :

TPS544B25 TINA-TI Average Spice Model       TPS544B25 PSpice Transient Model       TPS544B25 PSpice Average Model       Export TINA-TI Transient Spice Model from WEBENCH (Rev. A)