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Check the listing for details. 10x DC-DC Adjustable Step-up boost Power Converter Module XL6009 Replace LM2577. Condition: New. Listed at 11.47 USD. DSN6009 4A is a high-performance step-up switching current (BOOST) module. The module uses the second generation of high-frequency switching technology XL6009E1 core chip performance than the first generation technology LM2577.