https://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switchingProduct Detail Documentsen-USTelligent Community 12https://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switchingFri, 05 May 2023 15:58:49 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:52fd28c5-bb26-4d69-bf6f-05df9fdb6d07e14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switching#commentsCurrent Revision posted to Documents by e14-publisher on 5/5/2023 3:58:49 PM<br /> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">Evaluation Board based on the ST1S50 - 4A Step-down Switching</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>ST Microelectronics</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x500_1579630330.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x192_1579630330.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x500_1579630330.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x192_1579630330.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">STEVAL-ISA146V1</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-5a086" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?nsku=56Y0874&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('5a086'));" data-farnell="" data-newark="56Y0874" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> <p>The STEVAL-ISA146V1 is a product evaluation board used to evaluate the ST1S50, a 500 kHz fixed-frequency PWM synchronous step-down regulator. The ST1S50 operates from a 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to 0.88 x V_IN.</p> <p>The ST1S50 device integrates a 95 m&Omega; high-side switch and a 69 m&Omega; synchronous rectifier allowing very high efficiency with very low output voltages.&nbsp; The peak current mode control with a special PFM mode enables high efficiency at a light load.</p> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>4 A output current</li> <li>4.0 V to 18 V input voltage</li> <li>Output voltage adjustable from 0.8 V to 0.88 x V_IN</li> <li>500 kHz switching frequency</li> <li>High efficiency at light load</li> <li>Programmable soft-start and enable</li> <li>Integrated 95 mW and 69 mW power MOSFETs</li> <li>All ceramic capacitor</li> <li>Power Good</li> <li>Cycle-by-cycle current limiting</li> <li>Short-circuit protection</li> <li>Hysteretical thermal shutdown</li> <li>RoHS compliant</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Evaluation Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00103512.pdf" target="_blank">ST1S50 4A Monolithic synchronous step-down converter with high efficiency at light load (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">License Agreement</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/legal/legal_agreement/license_agreement/EvaluationProductLicenseAgreement.pdf" target="_blank">Evaluation products license agreement (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Product Brief/Fact sheet</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00112853.pdf" target="_blank">DB2291: 4 A step-down switching evaluation board based on the ST1S50 (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/bill_of_materials/steval-isa146v1_bom.pdf" target="_blank">STEVAL-ISA146V1 BOM (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/board_manufacturing_specification/steval-isa146v1_gerber.zip" target="_blank">STEVAL-ISA146V1 gerber files (zip)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/steval-isa146v1_schematic.pdf" target="_blank">STEVAL-ISA146V1 schematics (pdf)</a> </div> </div> </div> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 2992, "type": "devtool", "part_number": "STEVAL-ISA146V1" };</script> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: step-down regulator, power_management, stm, stepdown_buck_regulator, analog_demo_boards, ST1S50</div> https://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switching/revision/3Thu, 16 Dec 2021 23:30:14 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:52fd28c5-bb26-4d69-bf6f-05df9fdb6d07e14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switching#commentsRevision 3 posted to Documents by e14-publisher on 12/16/2021 11:30:14 PM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 2992, "type": "devtool", "part_number": "STEVAL-ISA146V1" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">Evaluation Board based on the ST1S50 - 4A Step-down Switching</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>ST Microelectronics</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x500_1579630330.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x192_1579630330.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x500_1579630330.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x192_1579630330.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">STEVAL-ISA146V1</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-05a96" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?nsku=56Y0874&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('05a96'));" data-farnell="" data-newark="56Y0874" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> <p>The STEVAL-ISA146V1 is a product evaluation board used to evaluate the ST1S50, a 500 kHz fixed-frequency PWM synchronous step-down regulator. The ST1S50 operates from a 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to 0.88 x V_IN.</p> <p>The ST1S50 device integrates a 95 m&Omega; high-side switch and a 69 m&Omega; synchronous rectifier allowing very high efficiency with very low output voltages.&nbsp; The peak current mode control with a special PFM mode enables high efficiency at a light load.</p> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>4 A output current</li> <li>4.0 V to 18 V input voltage</li> <li>Output voltage adjustable from 0.8 V to 0.88 x V_IN</li> <li>500 kHz switching frequency</li> <li>High efficiency at light load</li> <li>Programmable soft-start and enable</li> <li>Integrated 95 mW and 69 mW power MOSFETs</li> <li>All ceramic capacitor</li> <li>Power Good</li> <li>Cycle-by-cycle current limiting</li> <li>Short-circuit protection</li> <li>Hysteretical thermal shutdown</li> <li>RoHS compliant</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Evaluation Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00103512.pdf" target="_blank">ST1S50 4A Monolithic synchronous step-down converter with high efficiency at light load (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">License Agreement</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/legal/legal_agreement/license_agreement/EvaluationProductLicenseAgreement.pdf" target="_blank">Evaluation products license agreement (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Product Brief/Fact sheet</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00112853.pdf" target="_blank">DB2291: 4 A step-down switching evaluation board based on the ST1S50 (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/bill_of_materials/steval-isa146v1_bom.pdf" target="_blank">STEVAL-ISA146V1 BOM (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/board_manufacturing_specification/steval-isa146v1_gerber.zip" target="_blank">STEVAL-ISA146V1 gerber files (zip)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/steval-isa146v1_schematic.pdf" target="_blank">STEVAL-ISA146V1 schematics (pdf)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: step-down regulator, power_management, stm, stepdown_buck_regulator, analog_demo_boards, ST1S50</div> https://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switching/revision/2Thu, 16 Dec 2021 03:17:40 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:52fd28c5-bb26-4d69-bf6f-05df9fdb6d07e14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switching#commentsRevision 2 posted to Documents by e14-publisher on 12/16/2021 3:17:40 AM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 2992, "type": "devtool", "part_number": "STEVAL-ISA146V1" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">Evaluation Board based on the ST1S50 - 4A Step-down Switching</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>ST Microelectronics</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x500_1579630330.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x192_1579630330.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x500_1579630330.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x192_1579630330.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">STEVAL-ISA146V1</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-0a58d" data-at-areainteracted="design-center" data-at-type="click" data-at-link-type="button" href="javascript:void(0)" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('0a58d'));" data-farnell="" data-newark="" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> <p>The STEVAL-ISA146V1 is a product evaluation board used to evaluate the ST1S50, a 500 kHz fixed-frequency PWM synchronous step-down regulator. The ST1S50 operates from a 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to 0.88 x V_IN.</p> <p>The ST1S50 device integrates a 95 m&Omega; high-side switch and a 69 m&Omega; synchronous rectifier allowing very high efficiency with very low output voltages.&nbsp; The peak current mode control with a special PFM mode enables high efficiency at a light load.</p> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>4 A output current</li> <li>4.0 V to 18 V input voltage</li> <li>Output voltage adjustable from 0.8 V to 0.88 x V_IN</li> <li>500 kHz switching frequency</li> <li>High efficiency at light load</li> <li>Programmable soft-start and enable</li> <li>Integrated 95 mW and 69 mW power MOSFETs</li> <li>All ceramic capacitor</li> <li>Power Good</li> <li>Cycle-by-cycle current limiting</li> <li>Short-circuit protection</li> <li>Hysteretical thermal shutdown</li> <li>RoHS compliant</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Evaluation Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00103512.pdf" target="_blank">ST1S50 4A Monolithic synchronous step-down converter with high efficiency at light load (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">License Agreement</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/legal/legal_agreement/license_agreement/EvaluationProductLicenseAgreement.pdf" target="_blank">Evaluation products license agreement (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Product Brief/Fact sheet</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00112853.pdf" target="_blank">DB2291: 4 A step-down switching evaluation board based on the ST1S50 (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/bill_of_materials/steval-isa146v1_bom.pdf" target="_blank">STEVAL-ISA146V1 BOM (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/board_manufacturing_specification/steval-isa146v1_gerber.zip" target="_blank">STEVAL-ISA146V1 gerber files (zip)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/steval-isa146v1_schematic.pdf" target="_blank">STEVAL-ISA146V1 schematics (pdf)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: step-down regulator, power_management, stm, stepdown_buck_regulator, analog_demo_boards, ST1S50</div> https://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switching/revision/1Mon, 18 Oct 2021 20:21:44 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:52fd28c5-bb26-4d69-bf6f-05df9fdb6d07e14-publisherhttps://community.element14.com/products/devtools/product-pages/w/documents/22052/evaluation-board-based-on-the-st1s50---4a-step-down-switching#commentsRevision 1 posted to Documents by e14-publisher on 10/18/2021 8:21:44 PM<br /> <div class="xs-hide"> <script>e14.meta.page.devtools={"id": 2992, "type": "devtool", "part_number": "STEVAL-ISA146V1" };</script> </div> <div id="product-page-content"> <h1 class="xs-mt0 xs-mb2">Evaluation Board based on the ST1S50 - 4A Step-down Switching</h1> <div class="xs-mb3"><span class="bold xs-mr1">Manufactured By:</span>ST Microelectronics</div> <div class="xs-flex md-flex-row xs-flex-column"> <div class="md-w40 xs-w100"> <div id="devtool-primary-image" class="devtool-primary-image-container fill-white"> <img src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x500_1579630330.png" class="devtool-image-devtool-0 xs-w100 xs-full-height fill-white obj-fit-contain xs-block" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x192_1579630330.png" class="devtool-image-devtool-1 xs-w100 xs-full-height fill-white obj-fit-contain xs-hide" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> <div class="xs-flex xs-flex-wrap xs-mt2"> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x500_1579630330.png" id="devtool-0" class="xs-w100 xs-full-height obj-fit-contain" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> <div class="devtool-thumbnail fill-white xs-border-lighter txt-center xs-mr1 xs-mb2"> <img loading="lazy" src="https://community-dc-assets.element14.com/images/devtool/size500/evaluation_board_based_on_the_st1s50__4a_stepdown_switching_500x192_1579630330.png" id="devtool-1" class="xs-w100 xs-full-height obj-fit-contain" alt="Evaluation Board based on the ST1S50 - 4A Step-down Switching" /> </div> </div> </div> <div class="md-w60 md-pl4 md-pl4 md-pt0 xs-w100 xs-pl0 xs-pl0 xs-pt2"> <div class="xs-flex xs-flex-justify-space-between xs-flex-align-center xs-border-lighter fill-white xs-p2"> <div class="xs-mt1 xs-mb1"> <div class="xs-text-5"><span class="bold xs-mr1">Part Number:</span><span id="part-number-value">STEVAL-ISA146V1</span></div> </div> <div class="xs-text-right xs-mr2"> <a id="e14-product-link-de398" data-at-areainteracted="rte-content" data-at-type="click" data-at-link-type="button" href="https://referral.element14.com/OrderCodeView?nsku=56Y0874&COM=e14c-noscript&CMP=e14c-noscript&osetc=e14-noscript-tracking-loss" data-at-label="PRODUCT_POPUP_OPEN"class="e14-embedded e14_shopping-cart-far e14-button" onclick="event.preventDefault();e14.func.displayProduct(e14.meta.user.country, this, 'embedded-link', e14.func.getProductLinkJSON('de398'));" data-farnell="" data-newark="56Y0874" data-comoverride="" data-cmpoverride="" data-cpc="" data-avnetemea="" data-avnetema="" data-avnetasia="" >Buy Now</a> </div> </div> </div> </div> <div class="xs-mt3"> <p>The STEVAL-ISA146V1 is a product evaluation board used to evaluate the ST1S50, a 500 kHz fixed-frequency PWM synchronous step-down regulator. The ST1S50 operates from a 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to 0.88 x V_IN.</p> <p>The ST1S50 device integrates a 95 m&Omega; high-side switch and a 69 m&Omega; synchronous rectifier allowing very high efficiency with very low output voltages.&nbsp; The peak current mode control with a special PFM mode enables high efficiency at a light load.</p> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Features</h3> <ul> <li>4 A output current</li> <li>4.0 V to 18 V input voltage</li> <li>Output voltage adjustable from 0.8 V to 0.88 x V_IN</li> <li>500 kHz switching frequency</li> <li>High efficiency at light load</li> <li>Programmable soft-start and enable</li> <li>Integrated 95 mW and 69 mW power MOSFETs</li> <li>All ceramic capacitor</li> <li>Power Good</li> <li>Cycle-by-cycle current limiting</li> <li>Short-circuit protection</li> <li>Hysteretical thermal shutdown</li> <li>RoHS compliant</li> </ul> <h3 class="toc-item xs-pb2 xs-border-bottom">Ships With</h3> <ul> <li>Evaluation Board</li> </ul> <div id="devtool-required-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Required Tools</h3> <div id="devtool-required-devtools-content"></div> </div> <div id="devtool-accessory-devtools-section" class="xs-hide"> <h3 class="toc-item xs-pb2 xs-mb1 xs-border-bottom">Accessory Tools</h3> <div id="devtool-accessory-devtools-content"></div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Documents</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Data Sheet</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00103512.pdf" target="_blank">ST1S50 4A Monolithic synchronous step-down converter with high efficiency at light load (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">License Agreement</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/legal/legal_agreement/license_agreement/EvaluationProductLicenseAgreement.pdf" target="_blank">Evaluation products license agreement (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Product Brief/Fact sheet</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/data_brief/DM00112853.pdf" target="_blank">DB2291: 4 A step-down switching evaluation board based on the ST1S50 (pdf)</a> </div> </div> <h3 class="toc-item xs-pb2 xs-border-bottom">Downloads</h3> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Bill of Materials</h4> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/document/bill_of_materials/steval-isa146v1_bom.pdf" target="_blank">STEVAL-ISA146V1 BOM (pdf)</a> </div> </div> <div class="xs-px2"> <h4 class="xs-pb2 xs-border-bottom">Schematics/Layout Files</h4> <div class="attachment "> <i class="fal fa-file-archive"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/board_manufacturing_specification/steval-isa146v1_gerber.zip" target="_blank">STEVAL-ISA146V1 gerber files (zip)</a> </div> <div class="attachment xs-mb3"> <i class="fal fa-file-pdf"></i> <a href="http://www.st.com/st-web-ui/static/active/en/resource/technical/layouts_and_diagrams/schematic_pack/steval-isa146v1_schematic.pdf" target="_blank">STEVAL-ISA146V1 schematics (pdf)</a> </div> </div> </div> <div style="clear:both;"></div> <div style="font-size: 90%;">Tags: step-down regulator, power_management, stm, stepdown_buck_regulator, analog_demo_boards, ST1S50</div>