RDK-506

RDK-506 is a reference design kit for a 1.44W non-isolated buck converter using LinkSwitch™ -TN2 LNK3204D/P/G. The board provides a non-isolated 12V, 120mA continuous output. In metering applications this is used to supply the control circuits and micro controller. LinkSwitch-TN2 integrates a 725V MOSFET and control circuitry into a single low cost IC. Regulation is achieved using a low cost resistor divider feedback network. The switching frequency jitter feature of the LinkSwitch-TN2 family and the 66kHz switching frequency of operation helps reduce EMI.

• Input: 85VAC to 265VAC, output: 12V, 120mA
• Highly integrated solution
• Lowest possible component count
• No optocoupler or Zener diode required for regulation
• Thermal overload protection with automatic recovery
• Less than 30mW no-load consumption, greater than 75% efficiency at full load
• Less than ±3% load regulation
• Suitable for small appliance

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Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

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All testing should be performed using an isolation transformer to provide the AC input to the prototype board.