Amazon.com: LM2587 DC-DC Step Up Boost Converter 3-30V to 4-35V Power Converter Trasnformer Power Supply Module Voltage Regulator Booster : Electronics
5V to 12V @1.2A regulated power supply using LM2587 - Electronics-Lab.com
LM2587 DC-DC Boost Converter 3-30V Step Up to 4-35V Power Supply Module MAX 5A | eBay
LM2587 DC-DC Boost Converter 3V-30V Step up to 4-35V Power Supply Module MAX 5A | eBay