{"product_id":"2165-3-3v-800ma-linear-voltage-regulator-ld1117-3-3-to-220","title":"3.3V 800mA Linear Voltage Regulator - LD1117-3.3 TO-220","description":"\u003cp\u003eAh the esteemed LD1117, who amongst us has not used this popular low drop voltage regulator? This big chunky regulator will help you get your 4-15V battery or wall adapter down to a nice clean 3.3V with 1% regulation. Perfect for just about all electronics! This is the TO-220 version, with up to 800mA current capability, and has internal current limiting + thermal shut-down protection which makes it sturdy and pretty much indestructible - at least electronics-wise (we're pretty sure a hammer might work ...)\u003c\/p\u003e\n\u003cp\u003e This regulator has a ~1V linear drop-out, better than the 780X series' 2V. That means you must give it at least 4.3V to get a clean 3.3V out. This regulator is often used to get a 5V power supply to a clean 3.3V. There is a constant 'quiescent' current draw of 5mA.\u003c\/p\u003e \u003cp\u003eThis regulator can provide up to 800 mA as long as it has proper heat-sinking. The higher your input voltage and output current, the more heat it will generate. Without an extra heatsink, you can burn off up to 2W. \u003ca href=\"http:\/\/www.daycounter.com\/Calculators\/Heat-Sink-Temperature-Calculator.phtml\"\u003eWe like this calculator for determining your heat sink requirements\u003c\/a\u003e It's a TO-220 package, so use 62.5°C\/Watt junction thermal resistance. The wattage of your set up is = ( \u003cem\u003eInputVoltage\u003c\/em\u003e - 3.3V) * \u003cem\u003eAverageCurrentInAmps\u003c\/em\u003e . Eg a 9V power plug and 0.5 Amp of average output current mean the regulator is burning off (9 - 3.3)*0.5 = 2.85 Watts! \u003ca href=\"https:\/\/www.adafruit.com\/products\/977\"\u003eThis setup would need a heat sink\u003c\/a\u003e Or you could use a 5V power supply for (5-3.3)*0.5 = 0.85W which would not require a heat sink.\u003c\/p\u003e\n\u003cp\u003e This regulator requires \u003ca href=\"https:\/\/www.adafruit.com\/product\/2195\"\u003eat least 10uF electrolytic capacitors on both input and output for stability\u003c\/a\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"video-insert\" alt=\"https:\/\/www.youtube.com\/embed\/ouhHKlIrG-I\" contenteditable=\"false\" allowfullscreen=\"true\" frameborder=\"0\" src=\"https:\/\/img.youtube.com\/vi\/ouhHKlIrG-I\/hqdefault.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"video-insert\" alt=\"https:\/\/www.youtube.com\/embed\/vxDZktaVE_M?start=566\" contenteditable=\"false\" allowfullscreen=\"true\" frameborder=\"0\" src=\"https:\/\/img.youtube.com\/vi\/vxDZktaVE_M\/hqdefault.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg class=\"video-insert\" alt=\"https:\/\/www.youtube.com\/embed\/rUuwO3Q8N6o?start=566\" contenteditable=\"false\" allowfullscreen=\"true\" frameborder=\"0\" src=\"https:\/\/img.youtube.com\/vi\/rUuwO3Q8N6o\/hqdefault.jpg\"\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"4-6 Days","offer_id":47700413186393,"sku":"ADA-2165\/B","price":1.83,"currency_code":"EUR","in_stock":false},{"title":"1 day","offer_id":47886543683929,"sku":"ADA-2165\/A","price":1.83,"currency_code":"EUR","in_stock":false},{"title":"2-4 Weeks","offer_id":47886710210905,"sku":"ADA-2165","price":1.83,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/1009\/7753\/files\/2165-01.jpg?v=1705519292","url":"https:\/\/robot-italy.com\/en\/products\/2165-3-3v-800ma-linear-voltage-regulator-ld1117-3-3-to-220","provider":"Robot Italy","version":"1.0","type":"link"}