{"id":6284,"date":"2026-06-12T11:13:33","date_gmt":"2026-06-12T11:13:33","guid":{"rendered":"https:\/\/materialparts.com\/st1s10pur\/"},"modified":"2026-06-12T11:13:33","modified_gmt":"2026-06-12T11:13:33","slug":"st1s10pur","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/st1s10pur\/","title":{"rendered":"ST1S10PUR"},"content":{"rendered":"

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

The ST1S10PUR from STMicroelectronics is a 3A synchronous step-down DC-DC converter operating at 1.5MHz switching frequency. With an input range of 2.7V-5.5V and adjustable output from 0.8V to 5.5V, it achieves up to 95% efficiency in a compact VFQFPN-8 (4x4mm) package.<\/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
\u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n2.7V – 5.5V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n0.8V – 5.5V adjustable<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n3A<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n1.5MHz<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 95%<\/td>\n<\/tr>\n
RDS(on) High-Side<\/td>\n120m\u03a9<\/td>\n<\/tr>\n
RDS(on) Low-Side<\/td>\n90m\u03a9<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n1.5mA (typ)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0.1\u00b5A<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nVFQFPN-8 (4x4mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 3A output current with integrated power MOSFETs<\/li>\n
  • 1.5MHz switching frequency for small external components<\/li>\n
  • Up to 95% peak efficiency<\/li>\n
  • 0.1\u00b5A shutdown current for battery life preservation<\/li>\n
  • Internal soft-start and current limit protection<\/li>\n
  • 100% duty cycle operation in dropout<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Portable device power management<\/li>\n
    • SSD and storage systems<\/li>\n
    • Set-top box and digital TV<\/li>\n
    • Point-of-load regulation from 3.3V\/5V rails<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ST1S10PUR from STMicroelectronics is a 3A synchronous step-down DC-DC converter operating at 1.5MHz switching frequency. With an input range of 2.7V-5.5V and adjustable output from 0.8V to 5.5V, it achieves up to 95% efficiency in a compact VFQFPN-8 (4x4mm) package. Key Specifications Input Voltage 2.7V – 5.5V Output Voltage 0.8V – 5.5V […]<\/p>\n","protected":false},"author":2,"featured_media":6375,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[142],"class_list":["post-6284","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-st"],"acf":{"brief_explanation":"3A synchronous buck DC-DC converter, 2.7-5.5V input, 1.5MHz, 95% efficiency, VFQFPN-8","date_code":"","package_case":"VFQFPN-8 (4x4mm)","in_stock":2013,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/st1s10.pdf","price":"$0.92 @1ku","product_introduction":"The ST1S10PUR is a 3A synchronous step-down DC-DC converter from STMicroelectronics featuring integrated P-channel\/N-channel power MOSFETs. Operating at a fixed 1.5MHz switching frequency, it enables the use of tiny inductors and capacitors, resulting in a compact solution footprint. The device accepts input voltages from 2.7V to 5.5V and delivers an adjustable output from 0.8V to 5.5V at up to 3A, achieving peak efficiency of 95%.","working_principle":"The ST1S10PUR employs a pulse-width modulation (PWM) control architecture with a fixed 1.5MHz oscillator. The high-side P-channel MOSFET and low-side N-channel MOSFET are alternately switched to transfer energy from input to output through an external inductor. The feedback network compares a fraction of the output voltage with an internal 0.8V reference, adjusting the duty cycle to maintain regulation. In dropout conditions, the high-side MOSFET can operate at 100% duty cycle. Internal soft-start limits inrush current, while cycle-by-cycle current limit and thermal shutdown provide robust fault protection.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>VIN<\/td>Input supply voltage (2.7-5.5V)<\/td><\/tr>
      2<\/td>EN<\/td>Enable input (active high)<\/td><\/tr>
      3<\/td>FB<\/td>Feedback voltage input<\/td><\/tr>
      4<\/td>COMP<\/td>Error amplifier compensation<\/td><\/tr>
      5<\/td>AGND<\/td>Analog ground<\/td><\/tr>
      6<\/td>PGND<\/td>Power ground<\/td><\/tr>
      7<\/td>SW<\/td>Switching node (inductor connection)<\/td><\/tr>
      8<\/td>BOOT<\/td>Bootstrap capacitor connection<\/td><\/tr>
      Pad<\/td>GND<\/td>Exposed thermal pad (ground)<\/td><\/tr><\/table>","application_scenarios":"
      • 3.3V to 1.2V\/1.8V point-of-load conversion in portable devices<\/li>
      • SSD and flash storage power management<\/li>
      • Set-top box and digital TV core power rails<\/li>
      • Battery-powered portable equipment regulation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Vin<\/th>Iout<\/th>Frequency<\/th><\/tr>
        ST1S14PHR<\/td>ST<\/td>2.7-5.5V<\/td>4A<\/td>1.5MHz<\/td><\/tr>
        TPS62130<\/td>TI<\/td>3-17V<\/td>3A<\/td>2.5MHz<\/td><\/tr>
        BD9E102FJ<\/td>Rohm<\/td>2.7-5.5V<\/td>2A<\/td>1MHz<\/td><\/tr>
        AP63203<\/td>Diodes Inc<\/td>3.5-18V<\/td>2A<\/td>1.1MHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6284","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=6284"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6284\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media\/6375"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6284"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6284"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}