{"id":9946,"date":"2026-07-08T01:19:20","date_gmt":"2026-07-08T01:19:20","guid":{"rendered":"https:\/\/materialparts.com\/ncp511sn33t1g\/"},"modified":"2026-07-08T01:19:20","modified_gmt":"2026-07-08T01:19:20","slug":"ncp511sn33t1g","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ncp511sn33t1g\/","title":{"rendered":"NCP511SN33T1G"},"content":{"rendered":"

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

The onsemi NCP511SN33T1G is a 150mA very-low-dropout (VLDO) CMOS linear regulator providing a fixed 3.3V output. Featuring ultra-low ground current of 40uA, low noise of 30uVrms, and high PSRR of 75dB, it is optimized for noise-sensitive RF and analog applications in a tiny TSOP-5 package.<\/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<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n2.5V to 6.0V<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n200mV at 150mA<\/td>\n<\/tr>\n
Ground Current<\/td>\n40uA (typical)<\/td>\n<\/tr>\n
Output Noise<\/td>\n30uVrms (10Hz-100kHz)<\/td>\n<\/tr>\n
PSRR<\/td>\n75dB at 100Hz<\/td>\n<\/tr>\n
Output Accuracy<\/td>\n\u00b12%<\/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 +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 150mA output with 200mV dropout<\/li>\n
  • Ultra-low 40uA ground current<\/li>\n
  • Low noise: 30uVrms<\/li>\n
  • High PSRR: 75dB at 100Hz<\/li>\n
  • Noise bypass pin for further reduction<\/li>\n
  • Stable with 1uF ceramic output<\/li>\n
  • Current limit and thermal shutdown<\/li>\n
  • Compact TSOP-5 package<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • RF module power supply<\/li>\n
    • Wireless LAN\/BT power<\/li>\n
    • Audio codec clean supply<\/li>\n
    • ADC\/DAC reference supply<\/li>\n
    • Portable communications<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The onsemi NCP511SN33T1G is a 150mA very-low-dropout (VLDO) CMOS linear regulator providing a fixed 3.3V output. Featuring ultra-low ground current of 40uA, low noise of 30uVrms, and high PSRR of 75dB, it is optimized for noise-sensitive RF and analog applications in a tiny TSOP-5 package. Key Specifications Output Voltage 3.3V (fixed) Maximum Output […]<\/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":[1243],"chip_brand":[144],"class_list":["post-9946","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","tag-ncp511sn33t1g","chip_brand-on"],"acf":{"brief_explanation":"150mA VLDO, 3.3V, 40uA Ignd, 30uVrms noise, 75dB PSRR, TSOP-5, onsemi NCP511","date_code":"","package_case":"TSOP-5 \/ SOT-23-5 (2.9 x 1.6 x 1.15mm)","in_stock":6156,"datasheet":"https:\/\/www.onsemi.com\/pub\/Collateral\/NCP511-D.PDF","price":"$0.35 @ 1ku","product_introduction":"The onsemi NCP511SN33T1G is a 150mA very-low-dropout CMOS LDO with a fixed 3.3V output, optimized for noise-sensitive applications. With only 30uVrms output noise and 75dB PSRR, it provides an exceptionally clean power supply for RF modules, audio codecs, and precision ADC\/DAC circuits. The 40uA ground current and 200mV dropout make it suitable for battery-powered noise-critical applications.","working_principle":"The NCP511SN33T1G uses a P-channel MOSFET pass element in a CMOS LDO configuration to achieve very low dropout voltage (200mV at 150mA) while drawing only 40uA ground current. The internal bandgap reference and error amplifier maintain \u00b12% output accuracy over line, load, and temperature variations. A noise bypass pin (NR) allows an external capacitor to filter reference noise, achieving the ultra-low 30uVrms output noise. The 75dB PSRR effectively rejects input supply ripple, making it ideal for post-regulation of switching supplies.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Input<\/td>Input supply (2.5-6.0V)<\/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>NR<\/td>I\/O<\/td>Noise reduction bypass capacitor<\/td><\/tr>
      5<\/td>VOUT<\/td>Output<\/td>3.3V regulated output<\/td><\/tr><\/table>","application_scenarios":"
      • Wi-Fi\/Bluetooth module clean 3.3V power supply<\/li>
      • Audio codec low-noise analog supply<\/li>
      • Precision ADC\/DAC reference voltage supply<\/li>
      • GPS receiver RF front-end power<\/li>
      • Cellular module VDD supply filtering<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS73633DBVR<\/td>SOT-23-5<\/td>Low noise, 400mA<\/td><\/tr>
        onsemi<\/td>NCP511SN18T1G<\/td>SOT-23-5<\/td>1.8V version<\/td><\/tr>
        ADI<\/td>LT1761ES5-3.3#TRMPBF<\/td>SOT-23-5<\/td>Ultra-low noise 20uVrms<\/td><\/tr>
        TI<\/td>TPS7A0333DBVR<\/td>SOT-23-5<\/td>Ultra-low Iq 25nA<\/td><\/tr>
        onsemi<\/td>FAN2558S33X<\/td>SOT-23-5<\/td>Low noise alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9946","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=9946"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9946\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9946"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9946"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9946"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9946"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}