A good PCB layout for the SB140-T should ensure that the input and output pins are separated as much as possible to minimize noise coupling. The input capacitor should be placed close to the input pin, and the output capacitor should be placed close to the output pin. Additionally, the PCB should have a solid ground plane to reduce electromagnetic interference (EMI).
To ensure proper biasing, the input voltage should be within the recommended range of 2.5V to 5.5V, and the output voltage should be within the recommended range of 1.2V to 5.5V. The input and output capacitors should be selected to ensure that the voltage ripple is within the recommended range. Additionally, the SB140-T should be operated within the recommended operating temperature range of -40°C to 125°C.
The maximum output current of the SB140-T is 1A. However, the output current should be derated based on the ambient temperature and the input voltage to ensure reliable operation. The datasheet provides a graph to help determine the maximum output current based on the input voltage and ambient temperature.
The SB140-T has built-in overvoltage protection (OVP) and undervoltage lockout (UVLO) features. However, additional protection can be added using external components such as zener diodes or voltage supervisors to ensure that the input voltage remains within the recommended range. Additionally, a fuse or a current-limiting resistor can be added in series with the input voltage to prevent overcurrent conditions.
The typical startup time of the SB140-T is around 100μs. However, this time can vary depending on the input voltage, output capacitor value, and other factors. The datasheet provides a graph to help determine the startup time based on the input voltage and output capacitor value.
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
SB140-T Overview
Use the download button to access the SB140-T schematic symbol, PCB footprint, and 3D model.
To find more CAD model downloads similar to this part, try a partial part number search, like SB140,
or try a keyword search, such as Rectifier Diodes
Suggested Parts
If you searched for SB140-T, you might also be interested in these parts:
