A good PCB layout for optimal thermal performance involves placing the device near a thermal pad or a heat sink, and ensuring good thermal conductivity between the device and the heat sink. A 2-layer or 4-layer PCB with a solid ground plane is recommended. Avoid placing thermal vias under the device, and ensure that the thermal pad is connected to a solid ground plane.
To ensure reliable start-up of the converter, ensure that the input voltage is within the recommended range, and that the output capacitor is properly sized to handle the inrush current. Also, ensure that the soft-start capacitor is properly sized to limit the inrush current during start-up.
The recommended input capacitor type is a low-ESR ceramic capacitor with a value of 10uF to 22uF. The capacitor should be rated for the maximum input voltage and should be placed as close to the device as possible.
To optimize the output filter for minimum ripple and noise, use a low-ESR output capacitor with a value of 10uF to 22uF, and a series inductor with a value of 1uH to 10uH. The output filter should be placed as close to the output of the converter as possible.
The recommended thermal management strategy involves using a heat sink with a thermal resistance of less than 10°C/W, and applying a thermal interface material with a thermal conductivity of greater than 1 W/m-K. Ensure good airflow around the device and heat sink.
Trust Checks
This model has been built in collaboration with the manufacturer.
Manufacturer Collaborated
This model has been verified by system checks.
System Verified
This model has been reviewed by community users.
Community Approved
Sponsored
NCP1055ST100T3G Overview
Use the download button to access the NCP1055ST100T3G schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like NCP10,
or try a keyword search, such as Switching Regulator or Controllers
