ROHM provides a recommended PCB layout in their application note AN11984, which includes guidelines for thermal vias, copper pours, and component placement to minimize thermal resistance and ensure reliable operation.
The input capacitor selection depends on the input voltage, output current, and ripple current requirements. ROHM recommends using a low-ESR capacitor with a minimum capacitance of 10uF and a voltage rating of at least 1.5 times the input voltage. The X5R or X7R dielectric type is recommended for its stability over temperature.
The maximum output current of the RB511SM-40T2R is 1A, but it's recommended to derate the output current based on the ambient temperature and the input voltage to ensure reliable operation. Refer to the thermal derating curve in the datasheet for more information.
The RB511SM-40T2R has a maximum operating temperature of 125°C, but it's recommended to derate the output current and input voltage based on the ambient temperature to ensure reliable operation. ROHM provides a thermal derating curve in the datasheet to help with this calculation.
To ensure stability, ROHM recommends using a minimum output capacitance of 10uF with a low-ESR value, and placing the output capacitor close to the regulator. Additionally, the input capacitor should be placed close to the input pin, and the PCB layout should be designed to minimize parasitic inductance and capacitance.
Trust Checks
No trust score is available for this model.
Trust Score Unavailable
Sponsored
RB511SM-40T2R Overview
Use the download button to access the RB511SM-40T2R 3D model. You can still request or build the schematic symbol and PCB footprint by using the respective build or request forms on this page.
To find more CAD model downloads similar to this part, try a partial part number search, like RB511,
or try a keyword search, such as Rectifier Diodes
