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Mini DC-DC Step Down Buck Converter Board Module 5.5V to 36V Input to 3.3V/5V/12V 3A 8W High Power Supply PCB AJ39 - AliExpress
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Amazon.com: Boost Buck Converter, DROK DC 5.5-30V to 0.5-30V 5V 12V 24V Output Adjustable Power Supply Regulator Module, 4A 35W High Power Voltage Step Up Down Converter Board with Case LCD Display :
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RD DC-DC Step-Down High efficiency Synchronous 12v/9v 6A Adjustable Supply Power buck converter voltage Regulator - AliExpress
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Amazon.com: DKARDU 2PCS DC-DC Buck Converter 4.5V-27V to 3V 3.3V 3.7V 5V 6V 7.5 9V 12V Step Down Power Supply High Efficiency Voltage Regulator Module DD2712SA with Pin Header : Industrial &
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TPS56221EVM-579 - Texas Instruments - Evaluation Module, DC/DC Buck Converter, Supports Pre-Biased Output
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