{"id":9945,"date":"2026-07-08T01:19:18","date_gmt":"2026-07-08T01:19:18","guid":{"rendered":"https:\/\/materialparts.com\/ncp730asn330t1g\/"},"modified":"2026-07-08T01:19:18","modified_gmt":"2026-07-08T01:19:18","slug":"ncp730asn330t1g","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ncp730asn330t1g\/","title":{"rendered":"NCP730ASN330T1G"},"content":{"rendered":"

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

The onsemi NCP730ASN330T1G is a 150mA CMOS LDO voltage regulator with ultra-low 1uA quiescent current and 38V maximum input voltage. Providing a fixed 3.3V output in a tiny SOT-23-5 (TSOP-5) package, it is designed for battery-powered always-on systems requiring long battery life and wide input voltage range.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n3.3V (fixed)<\/td>\n<\/tr>\n
Maximum Output Current<\/td>\n150mA (200mA peak)<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n2.7V to 38V<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n1uA (typical)<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n290mV at 150mA (3.3V version)<\/td>\n<\/tr>\n
Output Accuracy<\/td>\n\u00b11%<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\n100nA (typical)<\/td>\n<\/tr>\n
PSRR<\/td>\n70dB at 100Hz<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nTSOP-5 \/ SOT-23-5<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +150\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low 1uA quiescent current<\/li>\n
  • Wide input range: 2.7V to 38V<\/li>\n
  • 3.3V fixed output with \u00b11% accuracy<\/li>\n
  • 100nA shutdown current<\/li>\n
  • 290mV dropout at 150mA<\/li>\n
  • 70dB PSRR at 100Hz<\/li>\n
  • Internal soft-start<\/li>\n
  • Stable with 1uF ceramic output<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Battery-powered always-on systems<\/li>\n
    • Smart meters and home automation<\/li>\n
    • Remote control and IoT devices<\/li>\n
    • White goods and appliances<\/li>\n
    • Industrial sensor power supply<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The onsemi NCP730ASN330T1G is a 150mA CMOS LDO voltage regulator with ultra-low 1uA quiescent current and 38V maximum input voltage. Providing a fixed 3.3V output in a tiny SOT-23-5 (TSOP-5) package, it is designed for battery-powered always-on systems requiring long battery life and wide input voltage range. Key Specifications Output Voltage 3.3V (fixed) […]<\/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":[1242],"chip_brand":[144],"class_list":["post-9945","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","tag-ncp730asn330t1g","chip_brand-on"],"acf":{"brief_explanation":"150mA LDO, 3.3V, 1uA Iq, 38V input, 290mV dropout, SOT-23-5, onsemi NCP730","date_code":"","package_case":"TSOP-5 \/ SOT-23-5 (2.9 x 1.6 x 1.15mm)","in_stock":11587,"datasheet":"https:\/\/www.onsemi.com\/pub\/Collateral\/NCP730-D.PDF","price":"$0.31 @ 1ku","product_introduction":"The onsemi NCP730ASN330T1G is a 150mA CMOS LDO with ultra-low 1uA quiescent current, supporting up to 38V input voltage. The fixed 3.3V output with \u00b11% accuracy and 290mV dropout makes it ideal for battery-powered always-on applications such as smart meters, home automation, and IoT devices where long battery life is critical.","working_principle":"The NCP730ASN330T1G uses a CMOS LDO architecture with an ultra-low bias current design to achieve the 1uA typical quiescent current. The P-channel MOSFET pass element provides low dropout voltage while drawing negligible gate current. The internal bandgap reference provides the \u00b11% output accuracy. The built-in soft-start circuit limits inrush current during startup. Current limiting and thermal shutdown protect the device under fault conditions. The enable pin allows shutdown with only 100nA current draw.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Input<\/td>Input supply (2.7-38V)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td>Ground reference<\/td><\/tr>
      3<\/td>EN<\/td>Input<\/td>Enable (active high)<\/td><\/tr>
      4<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr>
      5<\/td>VOUT<\/td>Output<\/td>3.3V regulated output<\/td><\/tr><\/table>","application_scenarios":"
      • Smart meter 3.3V MCU power from 12V battery<\/li>
      • Home automation sensor always-on supply<\/li>
      • IoT device long-life battery power rail<\/li>
      • Remote control receiver standby power<\/li>
      • Industrial 4-20mA loop powered sensor supply<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS70933DBVR<\/td>SOT-23-5<\/td>1uA Iq, 30V input<\/td><\/tr>
        onsemi<\/td>NCP730ASN500T1G<\/td>SOT-23-5<\/td>5.0V version<\/td><\/tr>
        Microchip<\/td>MCP1811AT-033\/OT<\/td>SOT-23-5<\/td>350nA Iq alternative<\/td><\/tr>
        Richtek<\/td>RT9013-33GB<\/td>SOT-23-5<\/td>Lower voltage alternative<\/td><\/tr>
        onsemi<\/td>NCP730BMT330TBG<\/td>WDFN-6<\/td>With Power Good output<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9945","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=9945"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9945\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9945"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}