{"id":5398,"date":"2026-06-09T11:31:22","date_gmt":"2026-06-09T11:31:22","guid":{"rendered":"https:\/\/materialparts.com\/lp38693sd-3-3-nopb\/"},"modified":"2026-06-09T11:31:22","modified_gmt":"2026-06-09T11:31:22","slug":"lp38693sd-3-3-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/lp38693sd-3-3-nopb\/","title":{"rendered":"LP38693SD-3.3\/NOPB"},"content":{"rendered":"

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

LP38693SD-3.3\/NOPB from TI is a 500mA LDO with 3.3V fixed output, ultra-low noise (30uVrms), 2.7-10V input. WSON-6 with exposed pad.<\/p>\n

\u5de5\u4f5c\u539f\u7406<\/h2>\n

Low-noise LDO optimized for RF and audio. 30uVrms output noise. 68dB PSRR at 1kHz. 240mV dropout at 500mA. Enable pin. Stable with 2.2uF ceramic output. Exposed pad for thermal performance. \/NOPB = lead-free.<\/p>\n

Pin Description<\/h2>\n\n\n\n\n\n\n\n\n
\u9488\u811a<\/th>\n\u540d\u79f0<\/th>\n\u529f\u80fd<\/th>\n<\/tr>\n
1<\/td>\nEN<\/td>\nEnable<\/td>\n<\/tr>\n
2<\/td>\nIN<\/td>\n2.7-10V input<\/td>\n<\/tr>\n
3<\/td>\n\u63a5\u5730<\/td>\n\u5730\u9762<\/td>\n<\/tr>\n
4<\/td>\nBYP<\/td>\nNoise bypass cap<\/td>\n<\/tr>\n
5<\/td>\n\u51fa\u5c40<\/td>\n3.3V output<\/td>\n<\/tr>\n
6<\/td>\nEP<\/td>\nExposed pad<\/td>\n<\/tr>\n<\/table>\n

\u5e94\u7528<\/h2>\n
    \n
  • RF transceiver power<\/li>\n
  • Audio codec supply<\/li>\n
  • Low-noise analog supply<\/li>\n<\/ul>\n

    Alternative Models<\/h2>\n\n\n\n
    Mfr<\/th>\nPart<\/th>\n\u8bf4\u660e<\/th>\n<\/tr>\n
    TI<\/td>\nLP38693SD-5.0\/NOPB<\/td>\n5.0V version<\/td>\n<\/tr>\n<\/table>","protected":false},"excerpt":{"rendered":"

    Product Overview LP38693SD-3.3\/NOPB from TI is a 500mA LDO with 3.3V fixed output, ultra-low noise (30uVrms), 2.7-10V input. WSON-6 with exposed pad. Working Principle Low-noise LDO optimized for RF and audio. 30uVrms output noise. 68dB PSRR at 1kHz. 240mV dropout at 500mA. Enable pin. Stable with 2.2uF ceramic output. Exposed pad for thermal performance. \/NOPB […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,32],"tags":[],"chip_brand":[138],"class_list":["post-5398","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"500mA LDO, 3.3V fixed, low noise, WSON-6","date_code":"","package_case":"WSON-6 (3.0x3.0mm, exposed pad)","in_stock":2144,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lp3869x.pdf","price":"$1.15 @ 1ku","product_introduction":"LP38693SD-3.3\/NOPB from TI is a 500mA LDO with 3.3V fixed output, ultra-low noise (30uVrms), 2.7-10V input. WSON-6 with exposed pad.","working_principle":"Low-noise LDO optimized for RF and audio. 30uVrms output noise. 68dB PSRR at 1kHz. 240mV dropout at 500mA. Enable pin. Stable with 2.2uF ceramic output. Exposed pad for thermal performance. \/NOPB = lead-free.","pin_description":"
    Pin<\/th>Name<\/th>Function<\/th><\/tr>
    1<\/td>EN<\/td>Enable<\/td><\/tr>
    2<\/td>IN<\/td>2.7-10V input<\/td><\/tr>
    3<\/td>GND<\/td>Ground<\/td><\/tr>
    4<\/td>BYP<\/td>Noise bypass cap<\/td><\/tr>
    5<\/td>OUT<\/td>3.3V output<\/td><\/tr>
    6<\/td>EP<\/td>Exposed pad<\/td><\/tr><\/table>","application_scenarios":"
    • RF transceiver power<\/li>
    • Audio codec supply<\/li>
    • Low-noise analog supply<\/li><\/ul>","alternative_models":"
      Mfr<\/th>Part<\/th>Notes<\/th><\/tr>
      TI<\/td>LP38693SD-5.0\/NOPB<\/td>5.0V version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5398","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=5398"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5398\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5398"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5398"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5398"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5398"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}