{"id":9696,"date":"2026-07-05T09:38:23","date_gmt":"2026-07-05T09:38:23","guid":{"rendered":"https:\/\/ic-vendor.com\/rtq2943gsp-qa-2\/"},"modified":"2026-07-05T09:38:23","modified_gmt":"2026-07-05T09:38:23","slug":"rtq2943gsp-qa-2","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/rtq2943gsp-qa-2\/","title":{"rendered":"RTQ2943GSP-QA"},"content":{"rendered":"<h2>Productos<\/h2>\n<p>The RTQ2943GSP-QA is a 42V, 3.5A automotive-grade step-down (buck) switching regulator from Richtek Technology. It features AEC-Q100 qualification, adjustable output voltage from 0.8V to 42V, and programmable switching frequency from 100kHz to 2.5MHz. The device integrates a 150m\u03a9 high-side switch and provides Power Good output and spread-spectrum EMI reduction.<\/p>\n<h2>Especificaciones<\/h2>\n<ul>\n<li>Input Voltage: 4V ~ 42V<\/li>\n<li>Output Voltage: 0.8V ~ 42V (adjustable)<\/li>\n<li>Output Current: 3.5A<\/li>\n<li>Reference Voltage: 0.8V<\/li>\n<li>Switching Frequency: 100kHz ~ 2.5MHz (programmable)<\/li>\n<li>Min On-Time: 100ns<\/li>\n<li>High-Side R_DS(ON): 150m\u03a9 @VIN=12V<\/li>\n<li>Soft Start: 1.4ms ~ 2.6ms<\/li>\n<li>Power Good: Yes (threshold programmable)<\/li>\n<li>Spread Spectrum: +6%<\/li>\n<li>Thermal Shutdown: 175\u00b0C (hysteresis 15\u00b0C)<\/li>\n<li>Package: 8-SOP-EP (Exposed Pad)<\/li>\n<li>Operating Temperature: -40\u00b0C ~ +150\u00b0C (TJ)<\/li>\n<li>AEC-Q100: Qualified<\/li>\n<\/ul>\n<h2>Caracter\u00edsticas<\/h2>\n<ul>\n<li>Automotive AEC-Q100 qualified<\/li>\n<li>Wide 4V-42V input range for automotive bus<\/li>\n<li>Programmable frequency via RT\/SYNC pin<\/li>\n<li>External synchronization support (0.3-2.2MHz)<\/li>\n<li>Power Good output with adjustable threshold<\/li>\n<li>Spread-spectrum for EMI compliance<\/li>\n<li>Internal compensation and soft-start<\/li>\n<li>Undervoltage lockout protection<\/li>\n<\/ul>\n<h2>Aplicaciones<\/h2>\n<ul>\n<li>Automotive infotainment and ADAS power supplies<\/li>\n<li>Industrial distributed power systems<\/li>\n<li>Battery-powered equipment regulators<\/li>\n<li>Telecom and networking DC-DC conversion<\/li>\n<li>FPGA and processor core voltage regulators<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Product Overview The RTQ2943GSP-QA is a 42V, 3.5A automotive-grade step-down (buck) switching regulator from Richtek Technology. It features AEC-Q100 qualification, adjustable output voltage from 0.8V to 42V, and programmable switching frequency from 100kHz to 2.5MHz. The device integrates a 150m\u03a9 high-side switch and provides Power Good output and spread-spectrum EMI reduction. Key Specifications Input Voltage: [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[943],"chip_brand":[203],"class_list":["post-9696","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","tag-rtq2943gsp-qa","chip_brand-richtek"],"acf":{"brief_explanation":"42V 3.5A automotive buck regulator, AEC-Q100, 0.8-42V adjustable, 100kHz-2.5MHz, 8-SOP-EP","date_code":"","package_case":"8-SOP-EP (3.90mm width, Exposed Pad)","in_stock":4449,"datasheet":"https:\/\/www.richtek.com\/assets\/product_file\/RTQ2942-QA\/DSQ2942-QA-01.pdf","price":"","product_introduction":"The RTQ2943GSP-QA is an AEC-Q100 qualified 42V 3.5A synchronous buck converter from Richtek with programmable frequency, Power Good, and spread-spectrum EMI reduction for automotive applications.","working_principle":"The RTQ2943 uses a constant-on-time (COT) control scheme with an internal high-side NMOS switch. The switching frequency is set by an external resistor on the RT\/SYNC pin. The output voltage is set by a resistor divider from VOUT to FB. The device operates in CCM at heavy load and transitions to DCM or PSM at light load for efficiency.","pin_description":"<table><tr><th>Pin<\/th><th>Name<\/th><th>Function<\/th><\/tr><tr><td>1<\/td><td>RT\/SYNC<\/td><td>Frequency set resistor \/ Sync input<\/td><\/tr><tr><td>2<\/td><td>EN<\/td><td>Enable (active high)<\/td><\/tr><tr><td>3<\/td><td>FB<\/td><td>Output voltage feedback<\/td><\/tr><tr><td>4<\/td><td>PG<\/td><td>Power Good output<\/td><\/tr><tr><td>5<\/td><td>VIN<\/td><td>Input supply (4-42V)<\/td><\/tr><tr><td>6<\/td><td>SW<\/td><td>Switch node (to inductor)<\/td><\/tr><tr><td>7<\/td><td>BOOT<\/td><td>Bootstrap capacitor<\/td><\/tr><tr><td>8<\/td><td>GND<\/td><td>Ground (EP)<\/td><\/tr><\/table>","application_scenarios":"<ul><li>Automotive 12V\/24V bus to 5V\/3.3V conversion<\/li><li>ADAS camera module power supply<\/li><li>Industrial PLC 24V to logic voltage<\/li><li>Infotainment head unit power<\/li><\/ul>","alternative_models":"<table><tr><th>Model<\/th><th>Manufacturer<\/th><th>VIN<\/th><th>IOUT<\/th><\/tr><tr><td>AP64350QSP-13<\/td><td>Diodes Inc<\/td><td>3.5-40V<\/td><td>3.5A<\/td><\/tr><tr><td>TPS54540BQDDAQ1<\/td><td>TI<\/td><td>4.5-42V<\/td><td>5A<\/td><\/tr><tr><td>RTQ2942GSP-QA<\/td><td>Richtek<\/td><td>4-42V<\/td><td>4.5A<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/9696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=9696"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/9696\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=9696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=9696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=9696"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=9696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}