{"id":6402,"date":"2026-06-16T02:55:01","date_gmt":"2026-06-16T02:55:01","guid":{"rendered":"https:\/\/materialparts.com\/mp1584en-lf-z\/"},"modified":"2026-06-16T02:55:01","modified_gmt":"2026-06-16T02:55:01","slug":"mp1584en-lf-z","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/mp1584en-lf-z\/","title":{"rendered":"MP1584EN-LF-Z"},"content":{"rendered":"

Productos<\/h2>\n

The MP1584EN-LF-Z from Monolithic Power Systems (MPS) is a 3A, 1.5MHz, 28V step-down (buck) converter with an integrated high-side power MOSFET. It uses current-mode control for fast loop response and features programmable switching frequency, pulse skipping at light load, internal soft-start, and cycle-by-cycle current limiting. The SOIC8E thermally enhanced package provides excellent heat dissipation.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Input Voltage Range<\/td>\n4.5V to 28V<\/td>\n<\/tr>\n
Output Voltage Range<\/td>\n0.8V to 20V (adjustable)<\/td>\n<\/tr>\n
Maximum Output Current<\/td>\n3A<\/td>\n<\/tr>\n
Switching Frequency<\/td>\n100kHz to 1.5MHz (programmable)<\/td>\n<\/tr>\n
Corriente de reposo<\/td>\n100\u00b5A (typical)<\/td>\n<\/tr>\n
Feedback Reference Voltage<\/td>\n0.8V<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 95%<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-20\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOIC-8E (thermally enhanced)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Wide 4.5V to 28V operating input range<\/li>\n
  • Programmable switching frequency via external resistor<\/li>\n
  • High-efficiency pulse skipping mode at light load<\/li>\n
  • Stable with ceramic output capacitors<\/li>\n
  • Internal soft-start<\/li>\n
  • Internal cycle-by-cycle current limit (no sense resistor)<\/li>\n
  • Thermal shutdown with hysteresis<\/li>\n
  • Enable pin for on\/off control<\/li>\n
  • Frequency foldback prevents inductor runaway at startup<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Automotive systems<\/li>\n
    • Industrial power systems<\/li>\n
    • Distributed power architectures<\/li>\n
    • Battery-powered systems<\/li>\n
    • Networking and telecom equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MP1584EN-LF-Z from Monolithic Power Systems (MPS) is a 3A, 1.5MHz, 28V step-down (buck) converter with an integrated high-side power MOSFET. It uses current-mode control for fast loop response and features programmable switching frequency, pulse skipping at light load, internal soft-start, and cycle-by-cycle current limiting. The SOIC8E thermally enhanced package provides excellent heat […]<\/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":[13,29],"tags":[],"chip_brand":[172],"class_list":["post-6402","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-mps"],"acf":{"brief_explanation":"3A, 1.5MHz, 28V buck converter, current-mode, programmable fsw, SOIC-8E","date_code":"","package_case":"SOIC-8E (5.00 x 6.00 x 1.50 mm)","in_stock":50000,"datasheet":"https:\/\/www.monolithicpower.com\/media\/document\/MP1584_r1.0.pdf","price":"$1.49 @ 1ku","product_introduction":"The MP1584EN-LF-Z is a high-frequency step-down switching regulator from Monolithic Power Systems with an integrated high-side high-voltage power MOSFET. It delivers up to 3A output current using current-mode control for fast transient response and simple compensation. The wide 4.5V to 28V input range accommodates automotive, industrial, and battery-powered applications. A 100\u00b5A quiescent current enables battery-powered designs, while the programmable switching frequency (100kHz to 1.5MHz) allows optimization between efficiency and solution size. At light loads, pulse skipping mode maintains high efficiency. The SOIC8E thermally enhanced package provides excellent thermal performance.","working_principle":"The MP1584EN-LF-Z operates as a current-mode buck converter. The high-side N-channel MOSFET switches ON to connect the input voltage to the inductor through the SW node, storing energy in the inductor. When the MOSFET turns OFF, the external Schottky catch diode conducts, allowing the inductor current to freewheel. The FB pin senses the output voltage through a resistive divider and compares it to the internal 0.8V reference. The error amplifier output (COMP pin) controls the peak inductor current through the current comparator. The FREQ pin sets the switching frequency via an external resistor (Rfreq = 180000\/fsw_kHz). The EN pin provides enable\/disable control. The BST pin supplies the floating gate driver through a bootstrap capacitor. Internal soft-start ramps the COMP voltage over approximately 2ms. Frequency foldback reduces switching frequency during startup and overcurrent to prevent inductor saturation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>SW<\/td>Power<\/td>Switching node; connects to inductor and catch diode<\/td><\/tr>
      2<\/td>EN<\/td>Input<\/td>Enable input; HIGH = on, LOW = shutdown<\/td><\/tr>
      3<\/td>COMP<\/td>Analog<\/td>Compensation node; connect RC network to ground<\/td><\/tr>
      4<\/td>FB<\/td>Input<\/td>Feedback voltage input; 0.8V reference<\/td><\/tr>
      5<\/td>GND<\/td>Ground<\/td>Device ground and thermal pad<\/td><\/tr>
      6<\/td>FREQ<\/td>Analog<\/td>Frequency programming; connect resistor to GND<\/td><\/tr>
      7<\/td>VIN<\/td>Power<\/td>Input supply voltage (4.5V to 28V)<\/td><\/tr>
      8<\/td>BST<\/td>Power<\/td>Bootstrap capacitor for high-side driver<\/td><\/tr><\/table>","application_scenarios":"
      • Automotive DC-DC Conversion:<\/b> Converts 12V or 24V vehicle battery to 5V or 3.3V logic rails with 28V max input and 1.5MHz switching enabling compact inductors<\/li>
      • Industrial Distributed Power:<\/b> Steps down 24V bus to point-of-load voltages for sensors and controllers with up to 95% efficiency<\/li>
      • Battery-Powered Devices:<\/b> Extends runtime with 100\u00b5A quiescent current and pulse skipping mode at light loads<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Vin Max<\/th>Iout<\/th>Key Difference<\/th><\/tr>
        MP2338GTL<\/td>MPS<\/td>28V<\/td>3A<\/td>Recommended replacement, synchronous<\/td><\/tr>
        LM2596S-5.0<\/td>TI<\/td>40V<\/td>3A<\/td>Fixed 5V output, 150kHz<\/td><\/tr>
        TPS54331DR<\/td>TI<\/td>28V<\/td>3A<\/td>Synchronous, 570kHz<\/td><\/tr>
        XL1509-5.0E1<\/td>XLSEMI<\/td>40V<\/td>2A<\/td>Lower cost, fixed 5V<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6402","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=6402"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/6402\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=6402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=6402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=6402"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}