ROHM recommends a PCB layout with a thermal pad connected to a large copper area on the bottom layer, and multiple vias to dissipate heat efficiently. A minimum of 2oz copper thickness is recommended.
To ensure reliable operation in high-temperature environments, it's essential to follow the recommended derating curves, ensure good thermal design, and consider using a heat sink or thermal interface material.
Although the datasheet doesn't specify a maximum allowed voltage for the input pins, it's generally recommended to limit the input voltage to 5V or less to prevent damage to the internal ESD protection diodes.
While the RB521VM-30FHTE-17 is capable of delivering up to 1A of output current, it's essential to consider the thermal performance and power dissipation in high-current applications. ROHM recommends using a heat sink or thermal interface material to ensure reliable operation.
The output voltage tolerance can be calculated by adding the output voltage accuracy (±2%) to the temperature coefficient (±0.5%/°C). This will give you the total output voltage tolerance over the operating temperature range.
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RB521VM-30FHTE-17 Overview
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