{"id":9947,"date":"2026-07-08T01:19:22","date_gmt":"2026-07-08T01:19:22","guid":{"rendered":"https:\/\/materialparts.com\/mp1584en-lf-z-2\/"},"modified":"2026-07-08T01:19:22","modified_gmt":"2026-07-08T01:19:22","slug":"mp1584en-lf-z-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/mp1584en-lf-z-2\/","title":{"rendered":"MP1584EN-LF-Z"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The MPS MP1584EN-LF-Z is a 3A, 1.5MHz step-down (buck) converter with an integrated high-voltage power MOSFET. Operating from 4.5V to 28V input, it provides up to 3A output current with programmable switching frequency from 100kHz to 1.5MHz. The SOIC-8E (SOICW) package provides excellent thermal performance.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u62d3\u6251\u7ed3\u6784<\/td>\nSynchronous Step-Down (Buck)<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n4.5V to 28V<\/td>\n<\/tr>\n
Output Voltage Range<\/td>\n0.5V to 16V (adjustable)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n3A (continuous)<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n100kHz to 1.5MHz (programmable)<\/td>\n<\/tr>\n
MOSFET RDS(ON)<\/td>\n115m\u03a9 (high-side)<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n100uA (typical)<\/td>\n<\/tr>\n
Reference Accuracy<\/td>\n\u00b11.5% over temperature<\/td>\n<\/tr>\n
Efficiency<\/td>\n>90% at 24V to 5V\/3A<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-8E (SOICW-8)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Status<\/td>\nNot Recommended for New Designs<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 4.5V to 28V wide input range<\/li>\n
  • 3A continuous output current<\/li>\n
  • Programmable switching frequency to 1.5MHz<\/li>\n
  • Pulse-skip mode for light-load efficiency<\/li>\n
  • Internal soft-start<\/li>\n
  • Internal current limit without sense resistor<\/li>\n
  • Frequency foldback for startup protection<\/li>\n
  • Thermal shutdown protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive systems and accessories<\/li>\n
    • Industrial distributed power systems<\/li>\n
    • Battery-powered equipment<\/li>\n
    • Embedded systems 5V\/3.3V supply<\/li>\n
    • Networking and telecom equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MPS MP1584EN-LF-Z is a 3A, 1.5MHz step-down (buck) converter with an integrated high-voltage power MOSFET. Operating from 4.5V to 28V input, it provides up to 3A output current with programmable switching frequency from 100kHz to 1.5MHz. The SOIC-8E (SOICW) package provides excellent thermal performance. Key Specifications Topology Synchronous Step-Down (Buck) Input Voltage […]<\/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":[1244],"chip_brand":[172],"class_list":["post-9947","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","tag-mp1584en-lf-z","chip_brand-mps"],"acf":{"brief_explanation":"3A 28V buck converter, 1.5MHz, adjustable, SOIC-8E, MPS MP1584 (NRND)","date_code":"","package_case":"SOIC-8E \/ SOICW-8 (5.0 x 4.0 x 1.5mm)","in_stock":2076,"datasheet":"https:\/\/www.monolithicpower.com\/en\/documentview\/productdocument\/view\/version\/1\/document_type\/datasheet\/slug\/mp1584","price":"$1.10 @ 1ku","product_introduction":"The MPS MP1584EN-LF-Z is a 3A step-down converter with integrated high-side MOSFET, operating from 4.5V to 28V input. With programmable switching frequency up to 1.5MHz and pulse-skip mode for light-load efficiency, it is one of the most popular DIY and commercial buck converter ICs. Note: This product is not recommended for new designs; MP2338GTL is the recommended replacement.","working_principle":"The MP1584EN-LF-Z uses current-mode control with an integrated N-channel high-side MOSFET to regulate the output voltage. During the on-time, the high-side MOSFET conducts, storing energy in the output inductor. During the off-time, the external Schottky diode (or body diode) provides the inductor current path. The error amplifier compares the divided output voltage with the 0.8V internal reference to control the duty cycle. The pulse-skip mode reduces switching frequency at light loads to maintain high efficiency. Frequency foldback limits the on-time during startup to prevent inductor current runaway.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>BST<\/td>Power<\/td>Bootstrap capacitor connection<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td>System ground<\/td><\/tr>
      3<\/td>SW<\/td>Power<\/td>Switch node (inductor connection)<\/td><\/tr>
      4<\/td>IN<\/td>Input<\/td>Input supply voltage (4.5-28V)<\/td><\/tr>
      5<\/td>EN<\/td>Input<\/td>Enable (high=on, low=shutdown)<\/td><\/tr>
      6<\/td>COMP<\/td>I\/O<\/td>Compensation network<\/td><\/tr>
      7<\/td>FREQ<\/td>Input<\/td>Frequency programming resistor<\/td><\/tr>
      8<\/td>FB<\/td>Input<\/td>Feedback voltage (0.8V reference)<\/td><\/tr><\/table>","application_scenarios":"
      • 12V\/24V automotive to 5V\/3.3V step-down<\/li>
      • Industrial 24V bus to logic supply conversion<\/li>
      • Battery-powered equipment voltage regulation<\/li>
      • Embedded system core voltage generation<\/li>
      • DIY buck converter module applications<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        MPS<\/td>MP2338GTL-Z<\/td>SOT583<\/td>Recommended replacement, sync rect<\/td><\/tr>
        MPS<\/td>MP2315GJ-Z<\/td>TSOT23-8<\/td>24V 3A sync, smaller package<\/td><\/tr>
        TI<\/td>LMR16006YQDDARQ1<\/td>SOP-8<\/td>60V 600mA automotive<\/td><\/tr>
        Monolithic Power<\/td>MP8759GD-Z<\/td>QFN-12<\/td>9A high-current alternative<\/td><\/tr>
        TI<\/td>TPS54331DR<\/td>SOP-8<\/td>28V 3A, similar function<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9947","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=9947"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9947\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9947"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9947"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9947"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9947"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}