{"id":9982,"date":"2026-07-08T08:32:38","date_gmt":"2026-07-08T08:32:38","guid":{"rendered":"https:\/\/materialparts.com\/tlv1117lv33dcyr-2\/"},"modified":"2026-07-08T08:32:38","modified_gmt":"2026-07-08T08:32:38","slug":"tlv1117lv33dcyr-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tlv1117lv33dcyr-2\/","title":{"rendered":"TLV1117LV33DCYR"},"content":{"rendered":"

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

The TI TLV1117LV33DCYR is an 800mA LDO providing a fixed 3.3V output in SOT-223 package. With 1.1V dropout at 800mA and 400uA quiescent current, it provides a higher-current 3.3V regulation solution for FPGA I\/O, MCU subsystems, and board-level power distribution from 5V rails.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n3.3V (fixed)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n800mA<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n2.0V to 5.5V<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n1.1V @ 800mA<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n400uA (typical)<\/td>\n<\/tr>\n
Accuracy<\/td>\n\u00b11%<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-223 (DCY)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 800mA output current<\/li>\n
  • SOT-223 power package<\/li>\n
  • \u00b11% output accuracy<\/li>\n
  • Stable with 10uF ceramic output<\/li>\n
  • Thermal shutdown and overcurrent protection<\/li>\n
  • Drop-in compatible with 1117 family<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • FPGA I\/O 3.3V power<\/li>\n
    • 5V-to-3.3V board-level regulation<\/li>\n
    • MCU subsystem power<\/li>\n
    • Networking equipment 3.3V rail<\/li>\n
    • Industrial control power distribution<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TI TLV1117LV33DCYR is an 800mA LDO providing a fixed 3.3V output in SOT-223 package. With 1.1V dropout at 800mA and 400uA quiescent current, it provides a higher-current 3.3V regulation solution for FPGA I\/O, MCU subsystems, and board-level power distribution from 5V rails. Key Specifications Output Voltage 3.3V (fixed) Output Current 800mA Input […]<\/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":[1277],"chip_brand":[138],"class_list":["post-9982","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","tag-tlv1117lv33dcyr","chip_brand-ti"],"acf":{"brief_explanation":"800mA LDO, 3.3V, 1.1V dropout, SOT-223, TI TLV1117LV 5V-to-3.3V","date_code":"","package_case":"SOT-223 (DCY, 6.5 x 3.5 x 1.8mm, tab=pin 2)","in_stock":8187,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tlv1117lv.pdf","price":"$0.50 @ 1ku","product_introduction":"The TI TLV1117LV33DCYR is an 800mA LDO providing a fixed 3.3V output in the industry-standard SOT-223 package. It is a modern, improved version of the classic 1117 LDO family with lower quiescent current and better accuracy. The 5V-to-3.3V conversion capability makes it a staple for board-level power distribution in FPGA, MCU, and networking applications.","working_principle":"The TLV1117LV33DCYR uses a PNP pass transistor in a bipolar LDO configuration, providing 800mA output current with 1.1V dropout. The SOT-223 package with its large tab (connected to pin 2\/output) provides excellent thermal dissipation for the higher power operation. The device is stable with only 10uF ceramic output capacitor. The \u00b11% accuracy is maintained over temperature and load variations through a trimmed bandgap reference.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND\/ADJ<\/td>Ground<\/td>Ground (fixed version)<\/td><\/tr>
      2<\/td>VOUT<\/td>Output<\/td>3.3V regulated output (also tab)<\/td><\/tr>
      3<\/td>VIN<\/td>Input<\/td>Input supply (2.0-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • FPGA 3.3V I\/O bank power from 5V rail<\/li>
      • Board-level 5V-to-3.3V regulation<\/li>
      • Networking switch 3.3V subsystem rail<\/li>
      • Industrial PLC 3.3V MCU power supply<\/li>
      • Embedded system 3.3V board power<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Diodes Inc<\/td>AZ1117IH-3.3TRG1<\/td>SOT-223<\/td>1A, drop-in equivalent<\/td><\/tr>
        onsemi<\/td>NCP1117ST33T3G<\/td>SOT-223<\/td>1A, equivalent<\/td><\/tr>
        ST<\/td>LD1117S33TR<\/td>SOT-223<\/td>800mA, equivalent<\/td><\/tr>
        TI<\/td>TLV1117LV33DCYRG4<\/td>SOT-223<\/td>Same, tape and reel<\/td><\/tr>
        TI<\/td>TLV1117LV50DCYR<\/td>SOT-223<\/td>5.0V output version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9982","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=9982"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/9982\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=9982"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=9982"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=9982"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=9982"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}