RECOM recommends a PCB layout with a large copper area connected to the tab of the device to dissipate heat efficiently. A minimum of 1 square inch of copper area is recommended.
While the R-78AA1.8-0.5SMD is rated for operation up to 125°C, it's essential to consider the derating of the output current and power dissipation at higher temperatures. Consult RECOM's application notes for guidance on high-temperature operation.
The R-78AA1.8-0.5SMD is stable with a wide range of output capacitors. However, for optimal stability, RECOM recommends using a low-ESR capacitor with a value between 10uF and 47uF. The capacitor's voltage rating should be at least 2x the output voltage.
While the datasheet specifies a maximum input voltage of 10V, it's essential to consider the voltage rating of the specific package and the application's requirements. For the R-78AA1.8-0.5SMD, the maximum input voltage is 7V for reliable operation.
Yes, you can parallel multiple regulators to increase the output current. However, it's crucial to ensure that each regulator has its own input capacitor and that the output capacitors are connected in parallel. Consult RECOM's application notes for guidance on paralleling regulators.
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R-78AA1.8-0.5SMD Overview
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