{"id":6311,"date":"2026-06-12T11:31:30","date_gmt":"2026-06-12T11:31:30","guid":{"rendered":"https:\/\/materialparts.com\/en5335qi\/"},"modified":"2026-06-12T11:31:30","modified_gmt":"2026-06-12T11:31:30","slug":"en5335qi","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/en5335qi\/","title":{"rendered":"EN5335QI"},"content":{"rendered":"

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

The EN5335QI from Intel (formerly Altera\/Enpirion) is a 3A PowerSoC synchronous buck DC-DC converter with integrated inductor in a QFN-24 (7x4mm) package. Operating at 4MHz with 0.6V-3.6V adjustable output and 93% peak efficiency, it delivers a complete power supply in a single component.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u8f93\u5165\u7535\u538b<\/td>\n2.4V – 5.5V<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n3A<\/td>\n<\/tr>\n
Output Voltage<\/td>\n0.6V – 3.6V adjustable<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n4MHz<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 93%<\/td>\n<\/tr>\n
Output Ripple<\/td>\n8mVp-p (typ)<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n800\u00b5A<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\n17\u00b5A<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nQFN-24 (7x4mm, integrated inductor)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Integrated inductor \u2014 no external magnetic component required<\/li>\n
  • 4MHz switching frequency for ultra-fast transient response<\/li>\n
  • 0.6V-3.6V adjustable output for FPGA\/SoC core and I\/O rails<\/li>\n
  • 93% peak efficiency with only 8mVp-p output ripple<\/li>\n
  • Complete PowerSoC solution in a single 7x4mm QFN package<\/li>\n
  • Internal soft-start, OCP, OTP, and UVLO protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • FPGA and SoC core and I\/O voltage regulation<\/li>\n
    • Point-of-load power for Altera\/Intel FPGAs<\/li>\n
    • Portable and space-constrained power supplies<\/li>\n
    • High-density board power distribution<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The EN5335QI from Intel (formerly Altera\/Enpirion) is a 3A PowerSoC synchronous buck DC-DC converter with integrated inductor in a QFN-24 (7x4mm) package. Operating at 4MHz with 0.6V-3.6V adjustable output and 93% peak efficiency, it delivers a complete power supply in a single component. Key Specifications Input Voltage 2.4V – 5.5V Output Current 3A […]<\/p>\n","protected":false},"author":2,"featured_media":6342,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[196],"class_list":["post-6311","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-intel"],"acf":{"brief_explanation":"3A PowerSoC buck converter with integrated inductor, 4MHz, 0.6-3.6Vout, QFN-24 7x4mm","date_code":"","package_case":"QFN-24 (7x4mm, integrated inductor)","in_stock":13531,"datasheet":"https:\/\/cdrdv2-public.intel.com\/632714\/en5335qi-3a-powersoc-datasheet.pdf","price":"$3.25 @1ku","product_introduction":"The EN5335QI from Intel is a 3A PowerSoC (Power System-on-Chip) synchronous buck converter that integrates the power MOSFETs, controller, and inductor into a single QFN-24 (7x4mm) package. This integration eliminates the need for external inductor selection, PCB layout optimization, and EMI filtering associated with discrete DC-DC converter designs. The 4MHz switching frequency provides fast transient response for demanding FPGA core rails, while the 93% peak efficiency and 8mVp-p output ripple deliver clean, efficient power in a fraction of the board area of traditional solutions.","working_principle":"The EN5335QI uses a current-mode synchronous buck topology operating at a fixed 4MHz switching frequency. The integrated inductor is fabricated using thick-film magnetic material deposited directly on the silicon die, providing the energy storage element without a discrete external component. The high-side and low-side MOSFETs are integrated on the same die as the controller, minimizing parasitic inductance and resistance in the power path. The current-mode control loop measures the inductor current directly and adjusts the duty cycle to maintain output regulation. The 4MHz frequency allows the control loop bandwidth to exceed 200kHz, providing sub-10\u00b5s transient recovery for FPGA load steps.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1-2<\/td>VIN<\/td>Input supply (2.4-5.5V)<\/td><\/tr>
      3-4<\/td>PGND<\/td>Power ground<\/td><\/tr>
      5-6<\/td>SW<\/td>Switching node (internal inductor)<\/td><\/tr>
      7<\/td>VOUT<\/td>Regulated output voltage<\/td><\/tr>
      8<\/td>FB<\/td>Feedback voltage (0.6V reference)<\/td><\/tr>
      9<\/td>SS\/REF<\/td>Soft-start \/ reference adjust<\/td><\/tr>
      10<\/td>EN<\/td>Enable input<\/td><\/tr>
      11<\/td>PG<\/td>Power good output<\/td><\/tr>
      12<\/td>AGND<\/td>Analog ground<\/td><\/tr>
      13-24<\/td>GND\/NC<\/td>Ground \/ No connect (thermal)<\/td><\/tr><\/table>","application_scenarios":"
      • Intel\/Altera FPGA core voltage (0.9V-1.2V) regulation from 3.3V\/5V<\/li>
      • SoC and processor I\/O rail (1.8V, 2.5V, 3.3V) point-of-load supply<\/li>
      • High-density PCB power distribution with minimal footprint<\/li>
      • Portable and wearable device compact power conversion<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Iout<\/th>Vin<\/th>Integrated L<\/th><\/tr>
        EN5336QI<\/td>Intel<\/td>3A<\/td>2.4-5.5V<\/td>Yes<\/td><\/tr>
        EN5364QI<\/td>Intel<\/td>6A<\/td>2.5-5.5V<\/td>Yes<\/td><\/tr>
        TPS82671<\/td>TI<\/td>0.5A<\/td>2.3-4.5V<\/td>Yes<\/td><\/tr>
        LMZ21700<\/td>TI<\/td>1A<\/td>2.7-5.5V<\/td>Yes<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6311","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=6311"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6311\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media\/6342"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6311"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}