{"id":7240,"date":"2026-06-23T07:51:06","date_gmt":"2026-06-23T07:51:06","guid":{"rendered":"https:\/\/materialparts.com\/tps563219ddfr\/"},"modified":"2026-06-23T07:51:06","modified_gmt":"2026-06-23T07:51:06","slug":"tps563219ddfr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tps563219ddfr\/","title":{"rendered":"TPS563219DDFR"},"content":{"rendered":"

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

The TPS563219DDFR from Texas Instruments is a 3A, 5.5V step-down converter in an SOT-23-8 package. With D-CAP3 control mode, it provides fast transient response without external compensation, ideal for space-constrained point-of-load 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>\n2.7 V to 5.5 V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n3 A<\/td>\n<\/tr>\n
\u062a\u0631\u062f\u062f \u0627\u0644\u062a\u062d\u0648\u064a\u0644<\/td>\n600 kHz (fixed)<\/td>\n<\/tr>\n
Reference Voltage<\/td>\n0.6 V (+\/-1%)<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 95%<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40C to +125C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 2.7V-5.5V input with 3A output in tiny SOT-23-8 package<\/li>\n
  • D-CAP3 control mode for fast transient response without compensation<\/li>\n
  • 600kHz fixed switching frequency for compact inductor selection<\/li>\n
  • 0.6V +\/-1% accurate feedback reference for precise output regulation<\/li>\n
  • Auto-skip Eco-mode for high light-load efficiency<\/li>\n
  • Power good output and programmable soft start<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Point-of-load conversion from 3.3V or 5V rails<\/li>\n
    • DDR memory VTT termination power supply<\/li>\n
    • Space-constrained POL in networking and computing<\/li>\n
    • Battery-powered system power regulation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS563219DDFR from Texas Instruments is a 3A, 5.5V step-down converter in an SOT-23-8 package. With D-CAP3 control mode, it provides fast transient response without external compensation, ideal for space-constrained point-of-load applications. Key Specifications Input Voltage 2.7 V to 5.5 V Output Current 3 A Switching Frequency 600 kHz (fixed) Reference Voltage 0.6 […]<\/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":[30,13],"tags":[],"chip_brand":[138],"class_list":["post-7240","post","type-post","status-publish","format-standard","hentry","category-ac-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"3A 5.5V buck, D-CAP3, SOT-23-8, 600kHz, 0.6V ref, Eco-mode, power good, POL","date_code":"","package_case":"SOT-23-8 (2.90 x 2.80 x 1.00 mm, 0.65mm pitch)","in_stock":5009,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps563219.pdf","price":"$0.65 @ 1ku","product_introduction":"The TPS563219DDFR from Texas Instruments is a 3A, 2.7V-5.5V input step-down DC-DC converter in an ultra-compact SOT-23-8 package. The device uses TIs D-CAP3 control mode, a proprietary emulated current-mode control that provides fast transient response without external compensation components. This simplifies the design to just five external components: input capacitor, output capacitor, inductor, and two feedback resistors. The 600kHz fixed switching frequency balances efficiency and component size, enabling the use of small 1-2.2uH inductors and ceramic capacitors. The 0.6V feedback reference with +\/-1% accuracy supports output voltages down to 0.6V, making the device suitable for low-voltage core and I\/O rails in modern processors and FPGAs. Auto-skip Eco-mode reduces the effective switching frequency at light loads, maintaining high efficiency across the entire load range. The power good (PG) output provides real-time output voltage status for system sequencing and monitoring. The SOT-23-8 package (2.9mm x 2.8mm) enables the smallest possible solution footprint.","working_principle":"The TPS563219DDFR uses D-CAP3 (emulated current-mode) control. (1) D-CAP3 Control: This proprietary control mode emulates the inductor current information from the output voltage ripple and internal ramp signal. Unlike traditional current-mode control, no current sense resistor or sense FET is needed. The emulated current information provides the advantages of current-mode control (cycle-by-cycle current limiting, improved line regulation) without the external compensation requirement. (2) Adaptive On-Time: The on-time is calculated adaptively based on the input voltage, output voltage, and switching frequency to maintain approximately constant frequency. This pseudo-fixed frequency operation simplifies EMI filter design. (3) Eco-Mode: At light loads, the device enters discontinuous conduction mode (DCM) where switching pulses are skipped to maintain regulation, improving light-load efficiency. (4) Power Good: The PG output is an open-drain transistor that pulls low when the output voltage falls below 85% or rises above 115% of the target.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Ground<\/td>Ground (exposed pad)<\/td><\/tr>
      2<\/td>VIN<\/td>Power<\/td>Input supply (2.7-5.5V)<\/td><\/tr>
      3<\/td>SW<\/td>Output<\/td>Switch node (inductor)<\/td><\/tr>
      4<\/td>PG<\/td>Output<\/td>Power good (open-drain)<\/td><\/tr>
      5<\/td>FB<\/td>Input<\/td>Feedback voltage (0.6V ref)<\/td><\/tr>
      6<\/td>SS<\/td>I\/O<\/td>Soft-start (external cap)<\/td><\/tr>
      7<\/td>EN<\/td>Input<\/td>Enable (active high)<\/td><\/tr>
      8<\/td>BOOT<\/td>Power<\/td>Bootstrap capacitor<\/td><\/tr><\/table>","application_scenarios":"
      • Point-of-load conversion from 3.3V or 5V rails to 0.6-3.3V at 3A<\/li>
      • DDR memory VTT termination power supply with 0.6V reference<\/li>
      • Space-constrained POL in networking and computing with SOT-23-8 footprint<\/li>
      • Battery-powered system power regulation with Eco-mode efficiency<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS562219DDFR<\/td>SOT-23-8<\/td>2A version, same family<\/td><\/tr>
        TI<\/td>TPS564201DDFR<\/td>SOT-23-8<\/td>4A, similar<\/td><\/tr>
        Monolithic Power<\/td>MP2143GD-Z<\/td>QFN-8<\/td>3A, 6V, 1.5MHz<\/td><\/tr>
        Richtek<\/td>RT5760AHPGJ5F<\/td>SOT-23-8<\/td>3A, 5.5V, 1.5MHz<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7240","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=7240"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7240\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7240"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7240"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}