{"product_id":"5v-step-up-voltage-regulator-u3v12f5-pololu","title":"Pololu 5V Step-Up Voltage Regulator U3V12F5 - Compact Boost","description":"\u003cdiv class=\"product-copy\"\u003e\n\n\u003cp\u003eThese boost (step-up) voltage regulators generate higher output voltages from input voltages as low as 2.5 V. They are switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) and have a typical efficiency between 80% to 90%. The available output current is a function of the input voltage, output voltage, and efficiency (see\u0026amp;nbsp;\u003cem\u003eTypical Efficiency and Output Current\u003c\/em\u003e\u0026amp;nbsp;section below), but the input current can typically be as high as 1.4\u0026amp;nbsp;A.\u0026amp;nbsp;\u003c\/p\u003e\n\u003cp\u003eThe regulator\u0026amp;rsquo;s thermal shutdown prevents damage from overheating, but it does\u0026amp;nbsp;\u003cstrong\u003enot\u003c\/strong\u003e\u0026amp;nbsp;have short-circuit or reverse-voltage protection.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg src=\"https:\/\/a.pololu-files.com\/picture\/0J4287.250.jpg?73c8be1ca36c2f08dc126ddcdaee49fe\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg src=\"https:\/\/a.pololu-files.com\/picture\/0J4288.250.jpg?40fe46612623e41922355bd56edb8797\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003einput voltage: 2.5\u0026amp;nbsp;V \u0026amp;ndash; VOUT\u003c\/li\u003e\n\u003cli\u003efixed 5\u0026amp;nbsp;V, 9\u0026amp;nbsp;V, or 12\u0026amp;nbsp;V output with 4% accuracy\u003c\/li\u003e\n\u003cli\u003e1.4\u0026amp;nbsp;A switch allows for input currents up to 1.4\u0026amp;nbsp;A\u003c\/li\u003e\n\u003cli\u003e2\u0026amp;nbsp;mA typical no-load quiescent current\u003c\/li\u003e\n\u003cli\u003eintegrated over-temperature shutoff\u003c\/li\u003e\n\u003cli\u003esmall size: 0.515\u0026amp;Prime;\u0026amp;nbsp;\u0026amp;times;\u0026amp;nbsp;0.32\u0026amp;Prime;\u0026amp;nbsp;\u0026amp;times;\u0026amp;nbsp;0.1\u0026amp;Prime; (13\u0026amp;nbsp;\u0026amp;times;\u0026amp;nbsp;8\u0026amp;nbsp;\u0026amp;times;\u0026amp;nbsp;3\u0026amp;nbsp;mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eUsing the Regulator\u003c\/h2\u003e\n\u003ch3\u003eConnections\u003c\/h3\u003e\n\u003cp\u003eThe boost regulator has three connections: input voltage (VIN), ground (GND), and output voltage (VOUT).\u003c\/p\u003e\n\u003cp\u003eThe input voltage, VIN, must be at least 2.5\u0026amp;nbsp;V and should not exceed the output voltage, VOUT. Please be wary of destructive LC spikes that might cause the input voltage to exceed VOUT (see below for more information).\u003c\/p\u003e\n\u003cp\u003eThe three connections are labeled on the back side of the PCB, and they are arranged with a 0.1\u0026amp;Prime; spacing along the edge of the board for compatibility with solderless\u0026amp;nbsp;breadboards,\u0026amp;nbsp;connectors, and other prototyping arrangements that use a 0.1\u0026amp;Prime; grid. You can solder wires directly to the board or solder in either the 3\u0026amp;times;1\u0026amp;nbsp;straight male header strip\u0026amp;nbsp;or the 3\u0026amp;times;1\u0026amp;nbsp;right-angle male header strip\u0026amp;nbsp;that is included.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg src=\"https:\/\/a.pololu-files.com\/picture\/0J4285.300.jpg?0b25a07d596fe46c7f779e3609109774\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTypical Efficiency and Output Current\u003c\/h3\u003e\n\u003cp\u003eThe efficiency of a voltage regulator, defined as (Power\u0026amp;nbsp;out)\/(Power\u0026amp;nbsp;in), is an important measure of its performance, especially when battery life or heat are concerns. As shown in the graphs below, this switching regulator typically has an efficiency of 80 to 90%.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg src=\"https:\/\/a.pololu-files.com\/picture\/0J4289.400.jpg?fc26d565b8cc2d292ac06d426cf9659d\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg src=\"https:\/\/a.pololu-files.com\/picture\/0J4290.400.jpg?d32416cc370028ecc1fe7fdfc4f295c5\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cimg src=\"https:\/\/a.pololu-files.com\/picture\/0J4291.400.jpg?bc60ef0769273ff8e8e1a985d3b18988\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe maximum achievable output current is approximately proportional to the ratio of the input voltage to the output voltage. If the\u0026amp;nbsp;\u003cem\u003einput\u003c\/em\u003e\u0026amp;nbsp;current exceeds the switch current limit (typically somewhere between 1.4 and 2\u0026amp;nbsp;A), the output voltage will begin to drop. Additionally, the maximum output current can depend on other factors, including the ambient temperature, air flow, and heat sinking.\u003c\/p\u003e\n\u003ch3\u003eLC Voltage Spikes\u003c\/h3\u003e\n\u003cp\u003eWhen connecting voltage to electronic circuits, the initial rush of current can cause damaging voltage spikes that are much higher than the input voltage. In our tests with typical power leads (~30\u0026amp;Prime; test clips), input voltages above 10\u0026amp;nbsp;V caused voltage spikes in excess of 20\u0026amp;nbsp;V. You can suppress such spikes by soldering a 33\u0026amp;mu;F or larger electrolytic capacitor close to the regulator between VIN and GND.\u003c\/p\u003e\n\u003cp\u003eIt's also worth checking for this online period calendar that presents the days of the month in an easy to understand calendar with your period and ovulation days.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n.product-copy{line-height:1.7}\n.product-copy \u003e * + *{margin-top:1rem}\n.product-copy h2{margin:1.4em 0 .6em}\n.product-copy p{margin:0 0 1em}\n.product-copy ul,.product-copy ol{margin:0 0 1.2em 1.2em}\n.product-copy li{margin:.35em 0}\n.product-copy table{width:100%;border-collapse:collapse;margin:1.2em 0}\n.product-copy table th,\n.product-copy table td{border:1px solid #eee;padding:.6em .75em;text-align:left}\n.faq-list{margin:1.2rem 0 1.4rem}\n.faq{border:1px solid #e6e6e6;border-radius:12px;padding:.75rem 1rem;margin:.6rem 0;background:#fafafa}\n.faq summary{font-weight:600;cursor:pointer}\n@media (min-width:768px){ .product-copy{font-size:1.02rem} }\n\u003c\/style\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":45813729427745,"sku":"POL2115","price":245.0,"currency_code":"PHP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/1491\/5617\/products\/5v-step-up-voltage-regulator-u3v12f5-pololu-1058.jpg?v=1689672699","url":"https:\/\/circuit.rocks\/products\/5v-step-up-voltage-regulator-u3v12f5-pololu","provider":"circuitrocks","version":"1.0","type":"link"}