{"id":5269,"date":"2026-06-09T10:38:29","date_gmt":"2026-06-09T10:38:29","guid":{"rendered":"https:\/\/materialparts.com\/lm5085my-nopb\/"},"modified":"2026-06-09T10:38:29","modified_gmt":"2026-06-09T10:38:29","slug":"lm5085my-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/lm5085my-nopb\/","title":{"rendered":"LM5085MY\/NOPB"},"content":{"rendered":"

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

LM5085MY\/NOPB from TI is a 50V PFET buck controller with 1A gate drive. Constant on-time. 50-1000kHz. Internal 1.25V reference. VSSOP-8.<\/p>\n

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

Constant on-time (COT) controller drives external P-channel MOSFET. No oscillator; frequency set by on-time and external components. 1A gate drive for large FETs. Input 4.5-50V. Current limit via sense resistor.<\/p>\n

Pin Description<\/h2>\n\n\n\n\n\n\n\n
\u9488\u811a<\/th>\n\u540d\u79f0<\/th>\n\u529f\u80fd<\/th>\n<\/tr>\n
1<\/td>\nVIN<\/td>\n4.5-50V input<\/td>\n<\/tr>\n
2<\/td>\nADJ<\/td>\nFeedback (1.25V ref)<\/td>\n<\/tr>\n
3<\/td>\nFB<\/td>\nOutput voltage sense<\/td>\n<\/tr>\n
4<\/td>\nISENSE<\/td>\nCurrent sense<\/td>\n<\/tr>\n
7<\/td>\nGATE<\/td>\nPFET gate drive<\/td>\n<\/tr>\n<\/table>\n

\u5e94\u7528<\/h2>\n
    \n
  • Automotive 12V\/24V buck<\/li>\n
  • Industrial distributed power<\/li>\n
  • High-voltage step-down<\/li>\n<\/ul>\n

    Alternative Models<\/h2>\n\n\n\n
    \u5236\u9020\u5546<\/th>\n\u90e8\u4ef6\u7f16\u53f7<\/th>\n\u8bf4\u660e<\/th>\n<\/tr>\n
    TI<\/td>\nLM5088MY\/NOPB<\/td>\nNFET version<\/td>\n<\/tr>\n<\/table>","protected":false},"excerpt":{"rendered":"

    Product Overview LM5085MY\/NOPB from TI is a 50V PFET buck controller with 1A gate drive. Constant on-time. 50-1000kHz. Internal 1.25V reference. VSSOP-8. Working Principle Constant on-time (COT) controller drives external P-channel MOSFET. No oscillator; frequency set by on-time and external components. 1A gate drive for large FETs. Input 4.5-50V. Current limit via sense resistor. Pin […]<\/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":[31,13],"tags":[],"chip_brand":[138],"class_list":["post-5269","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"50V buck controller, PFET, 1A, VSSOP-8","date_code":"","package_case":"VSSOP-8 (3.0 x 3.0 x 0.9mm)","in_stock":2801,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm5085.pdf","price":"$2.50 @ 1ku","product_introduction":"LM5085MY\/NOPB from TI is a 50V PFET buck controller with 1A gate drive. Constant on-time. 50-1000kHz. Internal 1.25V reference. VSSOP-8.","working_principle":"Constant on-time (COT) controller drives external P-channel MOSFET. No oscillator; frequency set by on-time and external components. 1A gate drive for large FETs. Input 4.5-50V. Current limit via sense resistor.","pin_description":"
    Pin<\/th>Name<\/th>Function<\/th><\/tr>
    1<\/td>VIN<\/td>4.5-50V input<\/td><\/tr>
    2<\/td>ADJ<\/td>Feedback (1.25V ref)<\/td><\/tr>
    3<\/td>FB<\/td>Output voltage sense<\/td><\/tr>
    4<\/td>ISENSE<\/td>Current sense<\/td><\/tr>
    7<\/td>GATE<\/td>PFET gate drive<\/td><\/tr><\/table>","application_scenarios":"
    • Automotive 12V\/24V buck<\/li>
    • Industrial distributed power<\/li>
    • High-voltage step-down<\/li><\/ul>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Notes<\/th><\/tr>
      TI<\/td>LM5088MY\/NOPB<\/td>NFET version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5269","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=5269"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/5269\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=5269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=5269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=5269"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=5269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}