{"id":10137,"date":"2026-07-08T08:56:43","date_gmt":"2026-07-08T08:56:43","guid":{"rendered":"https:\/\/materialparts.com\/fan5353uc33x\/"},"modified":"2026-07-08T08:56:43","modified_gmt":"2026-07-08T08:56:43","slug":"fan5353uc33x","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/fan5353uc33x\/","title":{"rendered":"FAN5353UC33X"},"content":{"rendered":"

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

The onsemi FAN5353UC33X is a 300mA LDO, 3.3V, 2MHz PSRR, WLCSP-4. It provides clean, regulated power for noise-sensitive applications in portable and computing systems.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n
\u8f93\u51fa\u7535\u6d41<\/td>\n300mA<\/td>\n<\/tr>\n
Output Voltage<\/td>\n3.3V<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nWLCSP-4<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low dropout voltage<\/li>\n
  • High PSRR for noise rejection<\/li>\n
  • Small package options<\/li>\n
  • Thermal shutdown protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Smartphone core power<\/li>\n
    • Tablet and notebook regulators<\/li>\n
    • RF power supply<\/li>\n
    • Portable device power management<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The onsemi FAN5353UC33X is a 300mA LDO, 3.3V, 2MHz PSRR, WLCSP-4. It provides clean, regulated power for noise-sensitive applications in portable and computing systems. Key Specifications Output Current 300mA Output Voltage 3.3V Package WLCSP-4 Features Ultra-low dropout voltage High PSRR for noise rejection Small package options Thermal shutdown protection Applications Smartphone core power […]<\/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":[13,32],"tags":[1419],"chip_brand":[144],"class_list":["post-10137","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","tag-fan5353uc33x","chip_brand-on"],"acf":{"brief_explanation":"300mA LDO, 3.3V, 2MHz PSRR, WLCSP-4","date_code":"","package_case":"WLCSP-4","in_stock":6500,"datasheet":"https:\/\/www.onsemi.com\/products\/power-management\/linear-regulators-ldo","price":"$0.45 @ 1ku","product_introduction":"The FAN5353UC33X from onsemi is a 300mA LDO providing 3.3V output in a WLCSP-4 package. It features ultra-low dropout and high PSRR, making it ideal for noise-sensitive portable and computing applications.","working_principle":"The LDO uses a PMOS pass element controlled by an error amplifier. The amplifier compares a fraction of the output voltage with an internal bandgap reference. When the output drops below the target, the amplifier increases gate drive to the PMOS, reducing its resistance and raising the output.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      VIN<\/td>Input voltage<\/td>Supply<\/td><\/tr>
      VOUT<\/td>Regulated output<\/td>Output<\/td><\/tr>
      GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      EN<\/td>Enable (active high)<\/td>Input<\/td><\/tr>
      BP<\/td>Bypass\/noise reduction<\/td>Analog<\/td><\/tr><\/table>","application_scenarios":"
      • Smartphone application processor core power<\/li>
      • RF transceiver clean power supply<\/li>
      • Tablet DDR memory termination<\/li>
      • Portable audio codec power<\/li><\/ul>","alternative_models":"
        Model<\/th>Brand<\/th>Iout<\/th>Vout<\/th><\/tr>
        TPS73633DBVR<\/td>TI<\/td>400mA<\/td>3.3V<\/td><\/tr>
        RT9193-33GB<\/td>Richtek<\/td>300mA<\/td>3.3V<\/td><\/tr>
        AP2112K-3.3TRG1<\/td>Diodes Inc<\/td>600mA<\/td>3.3V<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/10137","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=10137"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/10137\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=10137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=10137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=10137"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=10137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}