Adafruit TPS65131 Split Power Supply Boost Converter [+6~15 / -6V~-15V] : ID 6280 : Adafruit Industries, Unique & fun DIY electronics and kits

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The Adafruit TPS65131 Split Rail Boost Converter generates both positive and negative voltage rails from a single 3-5V input. This makes it great for mimicking or replacing a transformer-based power supply or something that needs negative bias. 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</li> <li> <a href="/new">What's New</a> </li> </ul> </div> <div class="right-content"> <div class="search-wrapper"> <form action="/search" method="get" role="search"> <input id="search" aria-labelledby="searchBtn" type="text" name="q" autocapitalize="none" spellcheck="false" autocomplete="off" data-page="" data-app-id="W9DMM4OTH0" data-app-key="e613bcda3453b9ef887e2724362f9e57" data-app-index="learn_guides_production" data-app-uri="https://learn.adafruit.com"> <button type="submit" id="searchBtn"><span class="sr-only">Search</span><i class="fa fa-search"></i></button> </form> </div> </div> </div> </div> </header> </div> <nav aria-label="Breadcrumbs" class="breadcrumbs"> <div class="container"> <a href="/category/42">Breakout Boards</a> / <a href="/category/522">Batteries/Power</a> <span class="hidden-xs-inline">/</span> <span class="hidden-xs-inline">Adafruit TPS65131 Split Power Supply Boost Converter</span> </div> </nav> <div class="main-container container" id="main" role="main" tabindex="-1"> <div id="full-overlay"></div> <script type="application/ld+json"> {"@context":"http:\/\/schema.org","@type":"Product","name":"Adafruit TPS65131 Split Power Supply Boost Converter","description":"Need those tricky split-rail voltages for your vintage electronics? The Adafruit TPS65131 Split Rail Boost Converter generates both positive and negative voltage rails from a single 3-5V input. This makes it great for mimicking or replacing a transformer-based power supply or something that needs negative bias. We kept the design compact, and it even has adjustable output pots, so you can tune the voltages from about +6~+15VDC and -6~15VDC. Perfect for use with audio or retro projects now that transformer supplies are hard to get, or if you want to have something that could run on battery or USB.","sku":6280,"image":["https:\/\/cdn-shop.adafruit.com\/\/970x728\/6280-00.jpg","https:\/\/cdn-shop.adafruit.com\/\/970x728\/6280-03.jpg","https:\/\/cdn-shop.adafruit.com\/\/970x728\/6280-01.jpg","https:\/\/cdn-shop.adafruit.com\/\/970x728\/6280-02.jpg"],"offers":{"@type":"Offer","availability":"http:\/\/schema.org\/InStock","price":"6.9500","priceCurrency":"USD","itemCondition":"http:\/\/schema.org\/NewCondition","url":"https:\/\/adafruit.com\/product\/6280","description":"Need those tricky split-rail voltages for your vintage electronics? The Adafruit TPS65131 Split Rail Boost Converter generates both positive and negative voltage rails from a single 3-5V input. This makes it great for mimicking or replacing a transformer-based power supply or something that needs negative bias. We kept the design compact, and it even has adjustable output pots, so you can tune the voltages from about +6~+15VDC and -6~15VDC. Perfect for use with audio or retro projects now that transformer supplies are hard to get, or if you want to have something that could run on battery or USB.Features:The TPS65131 can generate positive and negative voltages simultaneouslyAdjustable voltage ranges: +6V to +15V and -6V to -15V, these are somewhat approximate because the trimmer pot can vary, you may find +\/-0.5V variance on the bookend valuesInput voltage: 3 to 5.5VOutput current: 150mA from each rail (assuming +12\/-12V from 4.5V input). So not good for a motor, best for biasing or powering analog\/digital electronicsCompact breadboard-friendly design with mounting holes and two trimmer potsWe initially designed this to generate a -12V bias voltage on an Apple ][ disk drive, but you could definitely use it for synthesizers\/modulars, TTL logic or op-amps that want a wide power supply, biasing LCDs or OLEDs, as well as other uncommon voltages. The trimmers let you tweak the outputs so you could get +6V and -12V or +12 and -8V. "}}</script> <div class="row product-info"> <div class="mobile-product-header"> <h1 class="product-name-small">Adafruit TPS65131 Split Power Supply Boost Converter - +6~15 / -6V~-15V</h1> <div class="product_id">Product ID: <span>6280</span></div> <div class="product-price"> <span>$6.95</span> </div> </div> <div class="col-lg-9 col-md-8 col-sm-12 col-xs-12"> <section class="product-image-gallery slideshow-gallery" aria-labelledby="gallery-heading" data-gallery-type="touch-carousel" data-gallery='[{"type":"image","alt_text":"Angled Shot of the Adafruit - TPS65131 Split Boost.","thumbnail":"https:\/\/cdn-shop.adafruit.com\/145x109\/6280-00.jpg","thumbnail-srcset":"https:\/\/cdn-shop.adafruit.com\/480x360\/6280-00.jpg 480w, https:\/\/cdn-shop.adafruit.com\/310x233\/6280-00.jpg 310w, https:\/\/cdn-shop.adafruit.com\/230x173\/6280-00.jpg 230w, https:\/\/cdn-shop.adafruit.com\/145x109\/6280-00.jpg 145w, https:\/\/cdn-shop.adafruit.com\/82x62\/6280-00.jpg 82w","thumbnail-sizes":"(min-width: 1366px) 165px, (min-width: 1024px) 122px, 1px","gallery":{"width":970,"height":728,"file":"https:\/\/cdn-shop.adafruit.com\/970x728\/6280-00.jpg","srcset":"https:\/\/cdn-shop.adafruit.com\/970x728\/6280-00.jpg 970w, https:\/\/cdn-shop.adafruit.com\/640x480\/6280-00.jpg 640w, https:\/\/cdn-shop.adafruit.com\/480x360\/6280-00.jpg 480w, https:\/\/cdn-shop.adafruit.com\/413x309\/6280-00.jpg 413w, https:\/\/cdn-shop.adafruit.com\/310x233\/6280-00.jpg 310w","sizes":"(min-width: 1366px) 970px, (min-width: 1024px) 647px, (min-width: 768px) 728px, 100vw"}},{"type":"image","alt_text":"Top Down Front Shot of the Adafruit - 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TPS65131 Split Boost." loading="lazy" srcset="https://cdn-shop.adafruit.com/970x728/6280-03.jpg 970w, https://cdn-shop.adafruit.com/640x480/6280-03.jpg 640w, https://cdn-shop.adafruit.com/480x360/6280-03.jpg 480w, https://cdn-shop.adafruit.com/413x309/6280-03.jpg 413w, https://cdn-shop.adafruit.com/310x233/6280-03.jpg 310w" sizes="(min-width: 1366px) 970px, (min-width: 1024px) 647px, (min-width: 768px) 728px, 100vw" > </div> <div role="tabpanel" class="gallery-slide" id="gallery-slide-2" data-slide="2" aria-labelledby="Slide3" hidden> <img id="Slide3" src="https://cdn-shop.adafruit.com/970x728/6280-01.jpg" alt="Top Down Front Shot of the Adafruit - TPS65131 Split Boost with 8pin Header." loading="lazy" srcset="https://cdn-shop.adafruit.com/970x728/6280-01.jpg 970w, https://cdn-shop.adafruit.com/640x480/6280-01.jpg 640w, https://cdn-shop.adafruit.com/480x360/6280-01.jpg 480w, https://cdn-shop.adafruit.com/413x309/6280-01.jpg 413w, https://cdn-shop.adafruit.com/310x233/6280-01.jpg 310w" sizes="(min-width: 1366px) 970px, (min-width: 1024px) 647px, (min-width: 768px) 728px, 100vw" > </div> <div role="tabpanel" class="gallery-slide" id="gallery-slide-3" data-slide="3" aria-labelledby="Slide4" hidden> <img id="Slide4" src="https://cdn-shop.adafruit.com/970x728/6280-02.jpg" alt="Top Down Back Shot of the Adafruit - TPS65131 Split Boost next to a U.S. Quarter for Scale." loading="lazy" srcset="https://cdn-shop.adafruit.com/970x728/6280-02.jpg 970w, https://cdn-shop.adafruit.com/640x480/6280-02.jpg 640w, https://cdn-shop.adafruit.com/480x360/6280-02.jpg 480w, https://cdn-shop.adafruit.com/413x309/6280-02.jpg 413w, https://cdn-shop.adafruit.com/310x233/6280-02.jpg 310w" sizes="(min-width: 1366px) 970px, (min-width: 1024px) 647px, (min-width: 768px) 728px, 100vw" > </div> <div role="tabpanel" class="gallery-slide" id="gallery-slide-4" data-slide="4" aria-labelledby="Slide5" hidden> <div id="Slide5"> <lite-youtube videoid="aEl1HtEgitY" title="New Product 3/12/25 Feat. @Adafruit TPS65131 Split Power Supply Boost Converter - +6~15 / -6V~-15V!" style="background-image: url(https://cdn-shop.adafruit.com/ytimg/vi/aEl1HtEgitY/hqdefault.jpg)" params="rel=0&autoplay=1&start=385" > <a href="https://www.youtube.com/watch?v=aEl1HtEgitY&t=385" class="lyt-playbtn" title="Play video"> <span class="lyt-visually-hidden">Play video: New Product 3/12/25 Feat. @Adafruit TPS65131 Split Power Supply Boost Converter - +6~15 / -6V~-15V!</span> </a> </lite-youtube> <a class="gallery-slide gallery-slide-youtube" href="//www.youtube.com/watch?v=aEl1HtEgitY&t=385"> <img src='https://cdn-shop.adafruit.com/ytimg/vi/aEl1HtEgitY/hqdefault.jpg' alt="New Product 3/12/25 Feat. @Adafruit TPS65131 Split Power Supply Boost Converter - +6~15 / -6V~-15V!"> </a> </div> </div> </div> </div> </div> </section> <div class="visible-sm visible-xs"> <div class="row top-twenty"> <div class="col-sm-6 hidden-xs"> <div class="productQuantityDiscounts mobile-text-wrapper"> <table class="quantityDiscount"> <tr> <th class="discount-header">Qty</th> <th class="discount-header">Discount</th> </tr> <tr class="discount-row"> <td>1-9</td> <td>$6.95</td> </tr> <tr class="discount-row"> <td>10-99</td> <td>$6.26</td> </tr> <tr class="discount-row"> <td>100+</td> <td>$5.56</td> </tr> </table> </div> <div class="mobile-text-margins top-ten" style="font-weight: bold; margin-bottom: 10px;"> 30 in stock </div> </div> <div class="col-sm-6 col-xs-12"> <div class="row"> <div id="prod-stock-mobile"> <div class="col-sm-12 col-xs-12 mobile-button-row"> <form action="/added" method="post" class="add_to_cart_form"> <div id="prod-add-mobile" class="clearfix"> <input type="hidden" name="securityToken" value="696c0cc230e2ac479a5ba04d51921e13" /> <input type="hidden" name="action" value="add_product" /> <input type="hidden" name="pid" value="6280" /> <input type="text" name="qty" id="prod-add-qty-mobile" value="1" aria-label="Quantity"/> <input type="hidden" name="source_page" value="product" /> <input type="hidden" name="source_id" value="6280" /> <button id="prod-add-btn-mobile" type="submit" class="blue-button addToCart" data-pid="6280" data-qty-source="#prod-add-qty-mobile">Add to Cart</button> </div> </form>  </div> <div class="col-xs-12 visible-xs"> <div class="productQuantityDiscounts mobile-text-wrapper"> <table class="quantityDiscount"> <tr> <th class="discount-header">Qty</th> <th class="discount-header">Discount</th> </tr> <tr class="discount-row"> <td>1-9</td> <td>$6.95</td> </tr> <tr class="discount-row"> <td>10-99</td> <td>$6.26</td> </tr> <tr class="discount-row"> <td>100+</td> <td>$5.56</td> </tr> </table> </div> </div> <div class="clearfix visible-sm visible-xs"></div> <div class="col-xs-12 mobile-text-margins top-ten hidden-sm" style="margin-bottom: 10px;"> 30 in stock </div> <div class="col-xs-12 mobile-button-row"> <div id="add-to-wishlist-container-mobile"> <button id="add-btn-mobile" class="secondary-button" style="width: 100%;">Add to Wishlist</button> </div> </div> </div> </div> </div> </div> </div> <div id="prod-info"> <section id="description" class="prod-accordion-content prod-accordion-content-description mobile-text-wrapper" aria-labelledby="tab-description-heading"> <div class="tab-heading-row"> <h2 id="tab-description-heading"> Description </h2> </div> <div id="tab-description-content" class="panel-collapse collapse in"> <p>Need those tricky split-rail voltages for your vintage electronics? The <strong>Adafruit TPS65131 Split Rail Boost Converter</strong> generates both positive and negative voltage rails from a single 3-5V input. This makes it great for mimicking or replacing a transformer-based power supply or something that needs negative bias. We kept the design compact, and it even has adjustable output pots, so you can tune the voltages from about +6~+15VDC and -6~15VDC. Perfect for use with audio or retro projects now that transformer supplies are hard to get, or if you want to have something that could run on battery or USB.</p><p><strong>Features:</strong></p><ul><li>The TPS65131 can generate positive and negative voltages simultaneously</li><li>Adjustable voltage ranges: +6V to +15V and -6V to -15V, these are somewhat approximate because the trimmer pot can vary, you may find +/-0.5V variance on the bookend values</li><li>Input voltage: 3 to 5.5V</li><li>Output current: 150mA from each rail (assuming +12/-12V from 4.5V input). So not good for a motor, best for biasing or powering analog/digital electronics</li><li>Compact breadboard-friendly design with mounting holes and two trimmer pots</li></ul><p>We initially designed this to generate a -12V bias voltage on an Apple ][ disk drive, but you could definitely use it for synthesizers/modulars, TTL logic or op-amps that want a wide power supply, biasing LCDs or OLEDs, as well as other uncommon voltages. The trimmers let you tweak the outputs so you could get +6V and -12V or +12 and -8V. </p><p><lite-youtube videoid="aEl1HtEgitY" title="New Product 3/12/25 Feat. @Adafruit TPS65131 Split Power Supply Boost Converter - +6~15 / -6V~-15V!" style="background-image: url(https://cdn-shop.adafruit.com/ytimg/vi/aEl1HtEgitY/hqdefault.jpg)" params="si=MxtYDkujSShSDick&start=385" > <a href="https://www.youtube.com/watch?v=aEl1HtEgitY&t=385" class="lyt-playbtn" title="Play video"> <span class="lyt-visually-hidden">Play video: New Product 3/12/25 Feat. @Adafruit TPS65131 Split Power Supply Boost Converter - +6~15 / -6V~-15V!</span> </a> </lite-youtube></p> </div> </section> <section id="technical-details" class="prod-accordion-content prod-accordion-content-technical-details mobile-text-wrapper" aria-labelledby="tab-technical-details-heading"> <div class="tab-heading-row"> <h2 id="tab-technical-details-heading"> Technical Details </h2> </div> <div id="tab-technical-details-content" class="panel-collapse collapse in"> <div class="row"> <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12"><p>Product Dimensions: 28.0mm x 19.0mm x 3.5mm / 1.1" x 0.7" x 0.1" </p><p>Product Weight: 2.5g / 0.1oz </p></div> </div><ul id="product-files"> </ul> <div class="row"><div class="col-lg-2 col-md-3 col-sm-3 col-xs-4"><img src="/includes/templates/shop2019/images/RoHS2_2011_65_EU.svg" alt="RoHS 2 2011 65 EU Compliant" width="145" height="80"/></div><div class="col-lg-2 col-md-3 col-sm-3 col-xs-4"><img src="/includes/templates/shop2019/images/RoHS2_2015_863_EU.svg" alt="RoHS 2 2015 863 EU Compliant" width="145" height="80"/></div></div> </div> </section> <section id="learn" class="prod-accordion-content prod-accordion-content-learn mobile-text-wrapper" aria-labelledby="tab-learn-heading"> <div class="tab-heading-row"> <h2 id="tab-learn-heading"> Learn </h2> </div> <div id="tab-learn-content" class="panel-collapse collapse in"> <div class="learn-guides-list"> <div class="learn-guide-primary"> <div class="row product-info-tutorial"> <div class="col-lg-4 col-md-4 col-sm-4 col-xs-4 product-tutorial-img-container"> <img src="//cdn-learn.adafruit.com/guides/images/000/004/211/medium640/6280-00.jpg" alt="" class="img-responsive"/> <a href="https://learn.adafruit.com/adafruit-tps65131-split-power-supply-boost-converter" aria-hidden="true" tabindex="-1"></a> </div> <div class="col-lg-8 col-md-8 col-sm-8 col-xs-8"> <div class="product-info-tutorials-text"> <div class="product-info-added-tutorial-title"> <a href="https://learn.adafruit.com/adafruit-tps65131-split-power-supply-boost-converter"> Primary Guide: Adafruit TPS65131 Split Power Supply Boost Converter </a> </div> <div class="product-info-tutorials-tagline"> Mimic low power transformer based power supplies </div> </div> </div> </div> </div> <div class="clearfix hidden-lg top-ten"></div> </div> </div> </section> <section id="related-products" class="prod-accordion-content prod-accordion-content-related-products mobile-text-wrapper" aria-labelledby="tab-related-products-heading"> <div class="tab-heading-row"> <h2 id="tab-related-products-heading"> May We Also Suggest… </h2> </div> <div id="tab-related-products-content" class="panel-collapse collapse in">  <div class="row"> <div class="col-lg-3 col-md-4 col-sm-4 col-xs-6 related-product top-ten"> <div class="hover-img-box" > <img src="https://cdn-shop.adafruit.com/413x309/4654-03.jpg" class="img-responsive" alt="Angled shot of boost converter PCB." width="413" height="309"/> <a href="/product/4654" data-pid="4654" data-name="Adafruit MiniBoost 5V @ 1A - 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