Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general best practices for switching regulator layout, such as keeping the input and output capacitors close to the device, using a solid ground plane, and minimizing trace lengths and widths.
To ensure stability, make sure to follow the recommended component values and layout guidelines, and also consider the output capacitor's ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance) when selecting the output capacitor. Additionally, a minimum output capacitance of 10uF is recommended.
Although the datasheet specifies a maximum input voltage of 15V, it's recommended to derate the input voltage to 13.5V to ensure reliable operation and to account for voltage spikes and transients.
The TPS3128E15DBVT is rated for operation up to 125°C, but it's essential to consider the device's power dissipation and thermal management when operating in high-temperature environments. Make sure to follow the thermal design guidelines and consider using a heat sink if necessary.
To troubleshoot issues, start by verifying the input voltage, output voltage, and output current. Check the PCB layout and component values to ensure they match the recommended values. Use an oscilloscope to measure the output voltage ripple and switching frequency. If the issue persists, consult the datasheet and application notes, or contact Texas Instruments' support team for further assistance.
Trust Checks
This model has been provided by community users.
Community Provided
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
TPS3128E15DBVT Overview
Use the download button to access the TPS3128E15DBVT schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like TPS31,
or try a keyword search, such as Power Management Circuits
About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
