{"product_id":"fixed-ldo-voltage-regulator-0v-to-7-5v-500mv-drop-out-3-3v-out-1a-out-to-220-3-lm3940it-3-3-nopb","title":"Fixed LDO Voltage Regulator, 0V to 7.5V, 500mV Drop Out, 3.3V Out, 1A Out, TO-220-3 - LM3940IT-3.3\/NOPB","description":"\u003cbr\u003e\u003cdiv id=\"product-description\"\u003e\u003cp\u003e\u003cstrong\u003eThe LM3940IT-3.3\/NOPB is a 1A Low-dropout Regulator, designed to provide 3.3 from a 5-V supply. The LM3940 is ideally suited for systems which contain both 5 and 3.3V logic, with prime power provided from a 5V bus. Because the LM3940 is a true low dropout regulator, it can hold its 3.3V output in regulation with input voltages as low as 4.5V. Output voltage accuracy specifies minimum and maximum output voltage error, relative to the expected nominal output voltage. The internal current limit circuit is used to protect the LDO against high-load current faults or shorting events. During a current-limit event, the LDO sources constant current. The LM3940 contains a thermal shutdown protection circuit to turn off the output current when excessive heat is dissipated in the LDO. The thermal time-constant of the semiconductor die is fairly short and thus the output cycles on and off at a high rate when thermal shutdown is reached until the power dissipation is reduced.\u003c\/strong\u003e\u003c\/p\u003e\u003c\/div\u003e\u003cdiv class=\"features\"\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e4.5 to 5.5V Input voltage range\u003c\/li\u003e\n\u003cli\u003eOutput voltage specified over-temperature\u003c\/li\u003e\n\u003cli\u003eExcellent load regulation\u003c\/li\u003e\n\u003cli\u003eRequires only one external component\u003c\/li\u003e\n\u003cli\u003eBuilt-in protection against excess temperature\u003c\/li\u003e\n\u003cli\u003eShort-circuit protection\u003c\/li\u003e\n\u003cli\u003eGreen product and no Sb\/Br\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cdiv align=\"center\" class=\"datagrid\"\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"alt\"\u003e\n\u003ctd class=\"rowheading\"\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eFixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"rowheading\"\u003eInput Voltage Min\u003c\/td\u003e\n\u003ctd\u003e0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"alt\"\u003e\n\u003ctd class=\"rowheading\"\u003eInput Voltage Max\u003c\/td\u003e\n\u003ctd\u003e7.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"rowheading\"\u003eFixed Output Voltage Nom.\u003c\/td\u003e\n\u003ctd\u003e3.3V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"alt\"\u003e\n\u003ctd class=\"rowheading\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd\u003e1A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"rowheading\"\u003eDropout Voltage Vdo\u003c\/td\u003e\n\u003ctd\u003e500mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"alt\"\u003e\n\u003ctd class=\"rowheading\"\u003eLDO Regulator Case Style\u003c\/td\u003e\n\u003ctd\u003eTO-220\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"rowheading\"\u003eNo. of Pins\u003c\/td\u003e\n\u003ctd\u003e3Pins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"alt\"\u003e\n\u003ctd class=\"rowheading\"\u003eOperating Temperature Min\u003c\/td\u003e\n\u003ctd\u003e-40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"rowheading\"\u003eOperating Temperature Max\u003c\/td\u003e\n\u003ctd\u003e125°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"alt\"\u003e\n\u003ctd class=\"rowheading\"\u003eProduct Range\u003c\/td\u003e\n\u003ctd\u003e3.3V 1A LDO Voltage Regulators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"rowheading\"\u003eCountry of Origin:\u003c\/td\u003e\n\u003ctd\u003eMalaysia\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003cbr\u003e","brand":"Rapidwarehouse","offers":[{"title":"Default Title","offer_id":48107004821769,"sku":"GGBOB388736-RWWS-","price":3.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/1747\/2777\/files\/GGBOB388736-1.jpg?v=1720182173","url":"https:\/\/www.rapidwarehouse.com\/products\/fixed-ldo-voltage-regulator-0v-to-7-5v-500mv-drop-out-3-3v-out-1a-out-to-220-3-lm3940it-3-3-nopb","provider":"Rapidwarehouse","version":"1.0","type":"link"}