{"id":7600,"date":"2026-06-26T06:52:20","date_gmt":"2026-06-26T06:52:20","guid":{"rendered":"https:\/\/ic-vendor.com\/dmp1045u-7\/"},"modified":"2026-06-29T09:40:25","modified_gmt":"2026-06-29T09:40:25","slug":"dmp1045u-7","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/dmp1045u-7\/","title":{"rendered":"DMP1045U-7"},"content":{"rendered":"

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

The DMP1045U-7 from Diodes Incorporated is a P-channel enhancement mode MOSFET in a compact SOT-23 package, optimized for low-voltage power switching applications. It features a -12V drain-source voltage, -5.2A continuous drain current, and low 31 mOhm on-resistance at VGS=-4.5V, making it ideal for load switching and power management in battery-powered devices.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
VDS<\/td>\n-12V<\/td>\n<\/tr>\n
VGS<\/td>\n+\/-8V<\/td>\n<\/tr>\n
\u8eab\u4efd\u8bc1\uff08\u8fde\u7eed\uff09<\/td>\n-5.2A (at VGS=-4.5V)<\/td>\n<\/tr>\n
RDS(on)<\/td>\n31 mOhm max at VGS=-4.5V, ID=-4A<\/td>\n<\/tr>\n
VGS(th)<\/td>\n-0.35V to -1.0V<\/td>\n<\/tr>\n
Qg (total gate charge)<\/td>\n15.8 nC at VGS=-4.5V<\/td>\n<\/tr>\n
\u897f\u65af<\/td>\n1357 pF at VDS=-10V<\/td>\n<\/tr>\n
Pd<\/td>\n1.3W (SOT-23)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23, 2.9 x 1.3 mm<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-55\u00b0C \u81f3 +150\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low 31 mOhm RDS(on) at VGS=-4.5V<\/li>\n
  • -5.2A continuous drain current capability<\/li>\n
  • Low threshold voltage for logic-level drive<\/li>\n
  • Compact SOT-23 surface-mount package<\/li>\n
  • ESD protected gate<\/li>\n
  • Fast switching with 15.7 ns turn-on delay<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Load switching and power routing<\/li>\n
    • Battery-powered device power management<\/li>\n
    • DC-DC converter power stage<\/li>\n
    • Analog switch and multiplexer<\/li>\n
    • Battery charger switching<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The DMP1045U-7 from Diodes Incorporated is a P-channel enhancement mode MOSFET in a compact SOT-23 package, optimized for low-voltage power switching applications. It features a -12V drain-source voltage, -5.2A continuous drain current, and low 31 mOhm on-resistance at VGS=-4.5V, making it ideal for load switching and power management in battery-powered devices. Key Specifications […]<\/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":[13,56],"tags":[],"chip_brand":[],"class_list":["post-7600","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-mosfets"],"acf":{"brief_explanation":"P-ch MOSFET, -12V, -5.2A, 31mOhm RDS(on), SOT-23, logic-level gate","date_code":"","package_case":"SOT-23 2.9 x 1.3 mm","in_stock":14135,"datasheet":"https:\/\/www.diodes.com\/assets\/Datasheets\/DMP1045U.pdf","price":"$0.081 @ 3ku","product_introduction":"The DMP1045U-7 is a P-channel enhancement mode power MOSFET from Diodes Incorporated designed for low-voltage switching applications. The device features ultra-low on-resistance of 31 mOhm max at VGS=-4.5V and high continuous drain current of -5.2A, making it suitable for battery charging, load switching, and DC-DC converter applications. The low threshold voltage (-0.35V to -1.0V) enables direct drive from low-voltage logic circuits. The SOT-23 package provides a compact footprint for space-constrained designs while maintaining good thermal performance with 1.3W power dissipation. The device is manufactured using advanced trench MOSFET technology for optimal RDS(on) and switching performance.","working_principle":"The DMP1045U-7 is a P-channel enhancement mode MOSFET. When the gate-source voltage is more negative than the threshold voltage, an inversion layer forms in the N-body region, creating a conduction channel between source and drain. Current flows from source to drain (conventional) when the channel is formed. The trench gate structure provides high channel density for low on-resistance. The low threshold voltage (-0.35V to -1.0V) means only a small gate-source voltage differential is needed to enhance the channel, making it compatible with single-cell Li-ion battery voltages. The 31 mOhm RDS(on) at -4.5V VGS minimizes conduction losses in switching applications.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>G<\/td>Input<\/td>Gate terminal<\/td><\/tr>
      2<\/td>S<\/td>Power<\/td>Source terminal<\/td><\/tr>
      3<\/td>D<\/td>Power<\/td>Drain terminal<\/td><\/tr><\/table>","application_scenarios":"
      • Load switches: 31mOhm RDS(on) minimizes voltage drop in battery disconnect circuits<\/li>
      • Battery chargers: P-channel high-side switch for Li-ion charge path control<\/li>
      • DC-DC converters: Low RDS(on) for high-efficiency buck and boost converter power stages<\/li>
      • Power multiplexing: Select between USB and battery power sources with minimal loss<\/li>
      • Motor drivers: 5.2A current rating for small brushed DC motor H-bridge configurations<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Diodes<\/td>DMP1045U-7<\/td>SOT-23<\/td>Same device, tape and reel<\/td><\/tr>
        AOS<\/td>AO3401A<\/td>SOT-23<\/td>-30V, -4A, 8mOhm, popular alternative<\/td><\/tr>
        Vishay<\/td>SI2301DS-T1-GE3<\/td>SOT-23<\/td>-20V, -2.2A, 80mOhm<\/td><\/tr>
        Infineon<\/td>BSS84PH6327XTSA1<\/td>SOT-23<\/td>-60V, -150mA, logic level<\/td><\/tr>
        Nexperia<\/td>PMV65XP,215<\/td>SOT-23<\/td>-60V, -1.15A, 160mOhm<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/7600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=7600"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/7600\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=7600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=7600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=7600"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}