{"id":8753,"date":"2026-06-30T07:06:37","date_gmt":"2026-06-30T07:06:37","guid":{"rendered":"https:\/\/materialparts.com\/tps563249ddcr\/"},"modified":"2026-06-30T07:06:37","modified_gmt":"2026-06-30T07:06:37","slug":"tps563249ddcr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tps563249ddcr\/","title":{"rendered":"TPS563249DDCR"},"content":{"rendered":"

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

The TPS563249DDCR is a Texas Instruments 4.5V to 17V, 3A synchronous step-down converter in a SOT-23-6 package. It features integrated MOSFETs, 1.2 MHz fixed switching frequency, D-CAP3 control, and internal compensation. The 3A output current and tiny package make it ideal for space-constrained POL applications.<\/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
\u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n4.5 V to 17 V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n3 A<\/td>\n<\/tr>\n
Switching Freq<\/td>\n1.2 MHz<\/td>\n<\/tr>\n
\u0627\u0644\u062a\u062d\u0643\u0645<\/td>\nD-CAP3<\/td>\n<\/tr>\n
IQ (operating)<\/td>\n380 uA typical<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-23-6<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 4.5V to 17V input range<\/li>\n
  • 3A continuous output current<\/li>\n
  • 1.2 MHz fixed switching frequency<\/li>\n
  • D-CAP3 control, no compensation<\/li>\n
  • Internal soft-start (1ms)<\/li>\n
  • Power-good output<\/li>\n
  • Auto-skip mode for light loads<\/li>\n
  • SOT-23-6 ultra-small package<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Point-of-load power conversion<\/li>\n
    • FPGA and MCU core supply<\/li>\n
    • Set-top box and networking<\/li>\n
    • Industrial 12V to 3.3V\/1.8V<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS563249DDCR is a Texas Instruments 4.5V to 17V, 3A synchronous step-down converter in a SOT-23-6 package. It features integrated MOSFETs, 1.2 MHz fixed switching frequency, D-CAP3 control, and internal compensation. The 3A output current and tiny package make it ideal for space-constrained POL applications. Key Specifications Input Voltage 4.5 V to 17 […]<\/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":[31,13],"tags":[],"chip_brand":[138],"class_list":["post-8753","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"4.5-17V 3A sync buck, D-CAP3, 1.2MHz, SOT-23-6","date_code":"","package_case":"SOT-23-6 (2.9 x 1.6 x 1.1 mm)","in_stock":9500,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps563249.pdf","price":"$0.46 @ 1ku","product_introduction":"The TPS563249DDCR is a Texas Instruments 3A synchronous step-down converter supporting 4.5V to 17V input. The D-CAP3 control mode provides fast transient response without external compensation components. The 1.2 MHz fixed switching frequency enables small inductor and capacitor sizes. Integrated MOSFETs with auto-skip mode maintain high efficiency across the entire load range. An internal 1 ms soft-start limits inrush current during startup. The power-good output provides voltage monitoring and sequencing capability. Protection features include overcurrent, undervoltage, and thermal shutdown. The SOT-23-6 package delivers 3A in minimal PCB area, making it ideal for space-constrained point-of-load applications.","working_principle":"The TPS563249 uses D-CAP3 control with adaptive on-time. An internal emulator generates a signal proportional to inductor current ripple, which is added to the output voltage feedback for stable operation with ceramic output capacitors. The adaptive on-time adjusts the high-side MOSFET pulse width based on VIN\/VOUT ratio to maintain approximately 1.2 MHz switching frequency. At light loads, auto-skip mode reduces switching frequency to maintain high efficiency. The internal soft-start gradually ramps the reference voltage over 1 ms. The power-good comparator monitors the output voltage and deasserts PG when the output drops below the regulation threshold.","pin_description":"
      Pin<\/th>Mnemonic<\/th>Description<\/th><\/tr>
      1<\/td>SW<\/td>Switch node (inductor connection)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td><\/tr>
      3<\/td>FB<\/td>Feedback input<\/td><\/tr>
      4<\/td>EN<\/td>Enable input<\/td><\/tr>
      5<\/td>VBST<\/td>Bootstrap capacitor<\/td><\/tr>
      6<\/td>VIN<\/td>Input supply (4.5-17V)<\/td><\/tr><\/table>","application_scenarios":"
      • 12V to 3.3V\/1.8V POL for FPGA and MCU core with 3A in SOT-23-6<\/li>\n
      • Set-top box and networking equipment 5V\/3.3V power rails<\/li>\n
      • Industrial 12V\/24V to low-voltage conversion with D-CAP3 fast transient<\/li>\n
      • Space-constrained designs requiring 3A without external compensation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TPS563248DDCR<\/td>TI<\/td>2A version<\/td><\/tr>
        TPS563250DDCR<\/td>TI<\/td>5A version, larger package<\/td><\/tr>
        TPS562201DDCR<\/td>TI<\/td>2A, 650kHz, lower freq<\/td><\/tr>
        BD9E300<\/td>Rohm<\/td>Similar 3A buck<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/8753","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=8753"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/8753\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=8753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=8753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=8753"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=8753"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}