{"id":2143,"date":"2026-05-14T05:39:18","date_gmt":"2026-05-14T05:39:18","guid":{"rendered":"https:\/\/materialparts.com\/csd17577q5a\/"},"modified":"2026-05-20T04:54:17","modified_gmt":"2026-05-20T04:54:17","slug":"csd17577q5a","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/csd17577q5a\/","title":{"rendered":"CSD17577Q5A"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The CSD17577Q5A is a 30V N-channel NexFET power MOSFET from Texas Instruments, optimized for synchronous buck converter applications in networking, telecommunications, and computing systems. With an ultra-low RDS(on) of 3.5m\u03a9 typical (4.2m\u03a9 max at VGS=10V) and low gate charge of 13nC, it provides an excellent figure of merit (FOM = RDS(on) \u00d7 Qg \u2248 55m\u03a9\u00b7nC) for high-efficiency power conversion. The SON 5mm \u00d7 6mm package ensures low thermal resistance (R\u03b8JC = 2.8\u00b0C\/W max) for high-current applications up to 60A.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0634\u0631\u0643\u0629 \u0627\u0644\u0645\u0635\u0646\u0639\u0629<\/td>\n\u062a\u0643\u0633\u0627\u0633 \u0625\u0646\u0633\u062a\u0631\u0648\u0645\u0646\u062a\u0633<\/td>\n<\/tr>\n
\u0646\u0648\u0639 FET<\/td>\nN-Channel NexFET<\/td>\n<\/tr>\n
VDS (\u062c\u0647\u062f \u0645\u0635\u062f\u0631 \u0627\u0644\u062a\u0635\u0631\u064a\u0641-\u0627\u0644\u0645\u0635\u0631\u0641)<\/td>\n30V<\/td>\n<\/tr>\n
VGS (\u062c\u0647\u062f \u0645\u0635\u062f\u0631 \u0627\u0644\u0628\u0648\u0627\u0628\u0629)<\/td>\n\u00b120V<\/td>\n<\/tr>\n
RDS(\u062a\u0634\u063a\u064a\u0644) @ VGS=10 \u0641\u0648\u0644\u062a<\/td>\n3.5m\u03a9 typical \/ 4.2m\u03a9 max<\/td>\n<\/tr>\n
RDS(on) @ VGS=4.5V<\/td>\n5.8m\u03a9 max<\/td>\n<\/tr>\n
ID (Package Limited)<\/td>\n60A @ TC=25\u00b0C<\/td>\n<\/tr>\n
ID (Silicon Limited)<\/td>\n83A @ TC=25\u00b0C<\/td>\n<\/tr>\n
Qg (Total Gate Charge) @ VGS=10V<\/td>\n13nC typical<\/td>\n<\/tr>\n
Qgd (Gate-Drain Charge)<\/td>\n2.8nC typical<\/td>\n<\/tr>\n
Qgs (Gate-Source Charge)<\/td>\n5.1nC typical<\/td>\n<\/tr>\n
VGS(th) (\u0639\u062a\u0628\u0629 \u0627\u0644\u0628\u0648\u0627\u0628\u0629)<\/td>\n1.4V typical \/ 1.8V max @ ID=250\u00b5A<\/td>\n<\/tr>\n
Ciss (\u0633\u0639\u0629 \u0627\u0644\u0625\u062f\u062e\u0627\u0644)<\/td>\n2310pF max @ VDS=15V<\/td>\n<\/tr>\n
Coss (Output Capacitance)<\/td>\n270pF typical<\/td>\n<\/tr>\n
Crss (Reverse Transfer Capacitance)<\/td>\n102pF typical<\/td>\n<\/tr>\n
R\u03b8JA (Junction-to-Ambient)<\/td>\n40\u00b0C\/W (1″\u00b2 FR4, 2oz Cu)<\/td>\n<\/tr>\n
R\u03b8JC (Junction-to-Case)<\/td>\n2.8\u00b0C\/W max<\/td>\n<\/tr>\n
\u062a\u0628\u062f\u064a\u062f \u0627\u0644\u0637\u0627\u0642\u0629<\/td>\n3W (TA) \/ 53W (TC)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-55\u00b0C to +150\u00b0C (TJ)<\/td>\n<\/tr>\n
Logic Level Gate<\/td>\nYes<\/td>\n<\/tr>\n
Avalanche Rated<\/td>\nYes<\/td>\n<\/tr>\n
Lead-Free \/ Halogen-Free<\/td>\nYes \/ Yes<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSON 5mm \u00d7 6mm (VSONP, DQJ, 8-pin)<\/td>\n<\/tr>\n
\u0633\u0639\u0631 \u0627\u0644\u0645\u064a\u0632\u0627\u0646\u064a\u0629<\/td>\n$0.17 @ 1ku<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-low RDS(on): 3.5m\u03a9 typical at VGS=10V<\/li>\n
  • Low gate charge: 13nC typical for high-frequency switching<\/li>\n
  • Excellent FOM (RDS(on) \u00d7 Qg) for high-efficiency converter design<\/li>\n
  • Low thermal resistance: R\u03b8JC = 2.8\u00b0C\/W max<\/li>\n
  • Avalanche rated for robustness in unclamped inductive switching<\/li>\n
  • SON 5mm \u00d7 6mm package with low parasitic inductance<\/li>\n
  • Optimized for both control FET and synchronous FET positions<\/li>\n
  • Logic-level gate drive compatible (RDS(on) specified at 4.5V)<\/li>\n
  • Lead-free, RoHS compliant, halogen-free<\/li>\n
  • MSL Level-1-260C-UNLIM<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Synchronous buck converters in networking and telecom equipment<\/li>\n
    • Point-of-load (POL) DC-DC converters for servers and computing<\/li>\n
    • Motor drive and battery management systems<\/li>\n
    • Load switches and OR-ing applications<\/li>\n
    • Power tools and industrial equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The CSD17577Q5A is a 30V N-channel NexFET power MOSFET from Texas Instruments, optimized for synchronous buck converter applications in networking, telecommunications, and computing systems. With an ultra-low RDS(on) of 3.5m\u03a9 typical (4.2m\u03a9 max at VGS=10V) and low gate charge of 13nC, it provides an excellent figure of merit (FOM = RDS(on) \u00d7 Qg […]<\/p>\n","protected":false},"author":2,"featured_media":2178,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,56],"tags":[],"chip_brand":[138],"class_list":["post-2143","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-integrated-circuits-ics","category-mosfets","chip_brand-ti"],"acf":{"brief_explanation":"30V N-ch NexFET MOSFET, 4.2m\u03a9 Rds(on), 60A Id, 13nC Qg, SON 5x6mm, sync buck optimized, logic-level gate","date_code":"","package_case":"SON 5mm x 6mm (VSONP\/DQJ, 8-pin, 0.95mm pitch)","in_stock":7857,"datasheet":"https:\/\/www.ti.com\/product\/CSD17577Q5A","price":"$0.17 @ 1ku","product_introduction":"The CSD17577Q5A is a 30V N-channel NexFET power MOSFET from Texas Instruments, designed for high-efficiency synchronous buck converter applications in networking, telecom, and computing systems. Built on TI's NexFET technology platform, it achieves an ultra-low RDS(on) of 3.5m\u03a9 typical (4.2m\u03a9 max at VGS=10V) with a total gate charge of only 13nC, resulting in an excellent figure of merit (FOM = RDS(on) \u00d7 Qg \u2248 55m\u03a9\u00b7nC). The SON 5mm \u00d7 6mm package provides low thermal resistance (R\u03b8JC = 2.8\u00b0C\/W max) and low parasitic inductance for high-frequency operation. The device is rated for 60A package-limited continuous drain current at 25\u00b0C case temperature and is avalanche-rated for robustness in unclamped inductive switching events. Optimized for both control FET and synchronous FET positions in synchronous buck converters.","working_principle":"

      NexFET Technology<\/h3>\n

      The CSD17577Q5A is built on TI's NexFET technology, which uses a vertical copper-strap MOSFET architecture. Unlike conventional planar MOSFETs where the gate and source metallization overlap, NexFET uses a copper strap to connect the source to the package, significantly reducing package inductance and improving thermal performance. This enables the ultra-low RDS(on) per silicon area and low gate charge that characterize NexFET devices.<\/p>\n\n

      Synchronous Buck Operation<\/h3>\n

      In a synchronous buck converter, the CSD17577Q5A can serve as either the high-side (control) or low-side (synchronous) MOSFET. As a control FET, its low Qgd (2.8nC) ensures fast switching transitions with minimal switching loss. As a synchronous FET, its ultra-low RDS(on) minimizes conduction loss during the on-time period. The low FOM (RDS(on) \u00d7 Qg) makes it suitable for both roles in moderate-frequency converters operating at 300kHz to 1MHz.<\/p>\n\n

      Gate Drive Requirements<\/h3>\n

      The device is specified for RDS(on) at both VGS=10V (4.2m\u03a9) and VGS=4.5V (5.8m\u03a9), enabling logic-level gate drive from 5V controllers. For minimum conduction loss, 10V gate drive is recommended. The typical VGS(th) of 1.4V ensures robust turn-off margin when the gate is driven to 0V, preventing false turn-on due to dV\/dt coupling through the Miller capacitance.<\/p>\n\n

      Thermal Management<\/h3>\n

      The SON 5mm \u00d7 6mm package features an exposed drain pad that solders directly to the PCB, providing R\u03b8JC = 2.8\u00b0C\/W. With R\u03b8JA = 40\u00b0C\/W on a 1-inch\u00b2 2oz copper pad, the device can dissipate significant power. For high-current applications, proper thermal via arrays under the drain pad are essential to spread heat into inner PCB layers and copper planes.<\/p>","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>Source<\/td>Power<\/td>Source terminal<\/td><\/tr>\n
      2<\/td>Source<\/td>Power<\/td>Source terminal<\/td><\/tr>\n
      3<\/td>Source<\/td>Power<\/td>Source terminal<\/td><\/tr>\n
      4<\/td>Gate<\/td>Input<\/td>Gate control terminal (voltage-driven input)<\/td><\/tr>\n
      5<\/td>Drain<\/td>Power<\/td>Drain terminal (connected via exposed pad)<\/td><\/tr>\n
      6<\/td>Drain<\/td>Power<\/td>Drain terminal (connected via exposed pad)<\/td><\/tr>\n
      7<\/td>Drain<\/td>Power<\/td>Drain terminal (connected via exposed pad)<\/td><\/tr>\n
      8<\/td>Drain<\/td>Power<\/td>Drain terminal (connected via exposed pad)<\/td><\/tr>\n
      Pad<\/td>Drain<\/td>Output<\/td>Exposed thermal pad \u2014 drain connection, solder to PCB copper pour for heat dissipation<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Synchronous buck converters in networking and telecom equipment where ultra-low RDS(on) and low Qg minimize total power loss at 300kHz\u20131MHz switching frequencies<\/li>\n
      • Point-of-load DC-DC converters for servers and computing systems requiring 60A current handling in compact SON 5x6mm footprint<\/li>\n
      • Motor drive H-bridge circuits where avalanche rating provides robustness against inductive flyback during PWM switching<\/li>\n
      • Battery management system load switches where 4.2m\u03a9 RDS(on) minimizes voltage drop and conduction loss in the power path<\/li>\n
      • OR-ing and hot-swap applications where low RDS(on) reduces forward voltage drop and power dissipation in redundant power paths<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>VDS<\/th>RDS(on)<\/th>Notes<\/th><\/tr>\n
        TI<\/td>CSD17577Q3A<\/td>SON 3.3x3.3<\/td>30V<\/td>4.2m\u03a9<\/td>Same die, smaller package, lower current rating<\/td><\/tr>\n
        TI<\/td>CSD17579Q5A<\/td>SON 5x6<\/td>30V<\/td>9.7m\u03a9<\/td>Lower Qg (5.4nC), higher RDS(on), optimized for control FET<\/td><\/tr>\n
        TI<\/td>CSD17573Q5B<\/td>SON 5x6<\/td>30V<\/td>2.4m\u03a9<\/td>Ultra-low RDS(on) variant, higher Qg, sync FET optimized<\/td><\/tr>\n
        Infineon<\/td>BSZ050N03LS<\/td>SuperSO-8<\/td>30V<\/td>5.0m\u03a9<\/td>OptiMOS, similar performance class<\/td><\/tr>\n
        Vishay<\/td>SiRA12DP<\/td>PowerPAK SO-8<\/td>30V<\/td>4.5m\u03a9<\/td>TrenchFET, comparable specifications<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=2143"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2143\/revisions"}],"predecessor-version":[{"id":2454,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2143\/revisions\/2454"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media\/2178"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=2143"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=2143"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=2143"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=2143"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}