A good PCB layout for the UCC27201ADRMT involves keeping the high-frequency switching nodes (e.g., SW and VIN) away from sensitive analog nodes, using a solid ground plane, and minimizing trace lengths and loop areas. TI provides a recommended PCB layout in the datasheet and application notes.
To ensure reliable start-up and shutdown, ensure that the input voltage (VIN) rises monotonically and exceeds the UVLO threshold (typically 2.5V) before the enable pin (EN) is asserted. Also, ensure that the output voltage is fully discharged before shutdown to prevent unwanted oscillations.
The UCC27201ADRMT has a thermal pad that must be connected to a solid ground plane to dissipate heat efficiently. Ensure good thermal conductivity between the device and the PCB, and consider using thermal vias or a heat sink if high power dissipation is expected.
The compensation network for the UCC27201ADRMT involves selecting the right values for the compensation components (R1, R2, C1, and C2). TI provides a compensation calculator tool and application notes to help optimize the compensation network for specific applications.
To minimize EMI and noise, use a common-mode choke and a differential-mode filter at the input, and consider adding a shielded inductor and a snubber network to reduce radiated emissions. Also, ensure good PCB layout practices, such as separating noisy and quiet areas, and using a solid ground plane.
Trust Checks
This model has been verified by system checks.
System Verified
Sponsored
UCC27201ADRMT Overview
Use the download button to access the UCC27201ADRMT schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like UCC27,
or try a keyword search, such as MOSFET Drivers
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.
