{"id":6785,"date":"2026-06-21T10:48:15","date_gmt":"2026-06-21T10:48:15","guid":{"rendered":"https:\/\/materialparts.com\/ap62301wu-7\/"},"modified":"2026-06-21T10:48:15","modified_gmt":"2026-06-21T10:48:15","slug":"ap62301wu-7","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ap62301wu-7\/","title":{"rendered":"AP62301WU-7"},"content":{"rendered":"

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

The AP62301WU-7 from Diodes Incorporated is a 3 A, 40 V synchronous buck DC-DC converter with 65 mOhm high-side and 40 mOhm low-side integrated MOSFETs, operating at 500 kHz in a TSOT26 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nSynchronous Buck DC-DC Converter<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n4.5 V to 40 V<\/td>\n<\/tr>\n
Output Voltage<\/td>\n0.8 V to 30 V (Adjustable)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n3 A<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n500 kHz<\/td>\n<\/tr>\n
High-Side RDS(on)<\/td>\n65 mOhm<\/td>\n<\/tr>\n
Low-Side RDS(on)<\/td>\n40 mOhm<\/td>\n<\/tr>\n
Reference Voltage<\/td>\n0.8 V (1.5%)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTSOT26 (2.9 x 1.6 mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to 125C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 4.5 V to 40 V wide input voltage range<\/li>\n
  • 3 A output current with integrated MOSFETs<\/li>\n
  • Fixed 500 kHz switching frequency<\/li>\n
  • Internal soft start and compensation<\/li>\n
  • EN pin for shutdown control<\/li>\n
  • PWM\/PFM mode for high light-load efficiency<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial and telecom power supplies<\/li>\n
    • Set-top box and TV point-of-load converters<\/li>\n
    • Battery-powered equipment regulation<\/li>\n
    • Networking and server power rails<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AP62301WU-7 from Diodes Incorporated is a 3 A, 40 V synchronous buck DC-DC converter with 65 mOhm high-side and 40 mOhm low-side integrated MOSFETs, operating at 500 kHz in a TSOT26 package. Key Specifications Type Synchronous Buck DC-DC Converter Input Voltage 4.5 V to 40 V Output Voltage 0.8 V to 30 […]<\/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":[],"chip_brand":[193],"class_list":["post-6785","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-diodes-inc"],"acf":{"brief_explanation":"3A Sync Buck DC-DC, 4.5-40V, 500kHz, Int MOSFETs, TSOT26","date_code":"","package_case":"TSOT26 (2.9 x 1.6 x 0.9 mm)","in_stock":6789,"datasheet":"https:\/\/www.diodes.com\/assets\/Datasheets\/AP62301.pdf","price":"$0.42 @ 1ku","product_introduction":"The AP62301WU-7 from Diodes Incorporated is a 3 A synchronous step-down DC-DC converter with integrated 65 mOhm high-side and 40 mOhm low-side MOSFETs. The wide 4.5 V to 40 V input range supports a variety of power source configurations including 12 V, 24 V, and battery supplies. The device operates at a fixed 500 kHz switching frequency with internal loop compensation, requiring only external input\/output capacitors, an inductor, and feedback resistors. The EN pin provides enable\/disable control with a precision threshold. PWM\/PFM mode switching maintains high efficiency across the load range. The compact TSOT26 package minimizes board area for space-constrained designs.","working_principle":"The AP62301WU-7 uses a constant-frequency current-mode control architecture with integrated power MOSFETs. The internal oscillator generates a 500 kHz clock. During each switching cycle, the high-side MOSFET turns on, connecting the input voltage to the inductor through the SW node. The inductor current ramps up linearly. When the peak inductor current reaches the level set by the error amplifier, the high-side MOSFET turns off and the low-side MOSFET turns on, allowing the inductor current to freewheel through the low-side switch. The error amplifier compares the feedback voltage (from the external resistor divider) with the 0.8 V internal reference and adjusts the peak current threshold to regulate the output. At light loads, the device enters PFM mode where switching cycles are skipped to reduce switching losses. The internal soft start gradually increases the current limit during startup to prevent inrush current overshoot.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>BST<\/td>Power<\/td>Bootstrap capacitor for high-side gate<\/td><\/tr>
      2<\/td>VIN<\/td>Power<\/td>Input supply (4.5-40V)<\/td><\/tr>
      3<\/td>EN<\/td>Input<\/td>Enable (high=on, low=off)<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      5<\/td>FB<\/td>Input<\/td>Feedback voltage (0.8V reference)<\/td><\/tr>
      6<\/td>SW<\/td>Output<\/td>Switch node (inductor connection)<\/td><\/tr><\/table>","application_scenarios":"
      • 12V\/24V industrial bus to 5V\/3.3V point-of-load conversion<\/li>
      • Set-top box and smart TV secondary power rails<\/li>
      • Battery-powered equipment step-down regulation<\/li>
      • Networking equipment POL from 12V intermediate bus<\/li>
      • General-purpose 3A buck converter with minimal external components<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Diodes Inc<\/td>AP62302WU-7<\/td>TSOT26<\/td>2A, same family, lower current<\/td><\/tr>
        Texas Instruments<\/td>TPS54335ADDAR<\/td>HSOIC-8<\/td>3A, 28V, 50kHz-1.5MHz<\/td><\/tr>
        Monolithic Power<\/td>MP8759GD-Z<\/td>TSOT23-6<\/td>3A, 24V, 500kHz<\/td><\/tr>
        Richtek<\/td>RT6201GQW<\/td>WQFN-10<\/td>3A, 36V, 500kHz<\/td><\/tr>
        onsemi<\/td>NCP3231MNTXG<\/td>DFN-10<\/td>3A, 28V, 500kHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6785","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=6785"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6785\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6785"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}