{"id":6981,"date":"2026-06-22T12:15:36","date_gmt":"2026-06-22T12:15:36","guid":{"rendered":"https:\/\/materialparts.com\/tps53317argbr\/"},"modified":"2026-06-22T12:15:36","modified_gmt":"2026-06-22T12:15:36","slug":"tps53317argbr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps53317argbr\/","title":{"rendered":"TPS53317ARGBR"},"content":{"rendered":"

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

The TPS53317ARGBR from Texas Instruments is a 6A DDR termination synchronous step-down converter with integrated FETs, D-CAP+ mode, and 20-pin VQFN package (tape and reel).<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\n6A DDR Termination Synchronous Step-Down Converter with Integrated FETs<\/td>\n<\/tr>\n
Conversion Input Voltage<\/td>\n1V to 6V<\/td>\n<\/tr>\n
V5IN Supply<\/td>\n4.5V to 6.5V<\/td>\n<\/tr>\n
Output Voltage<\/td>\n0.6V to 2V (adjustable); tracks 1\/2 VDDQ<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n6A (source and sink)<\/td>\n<\/tr>\n
\u63a7\u5236\u6a21\u5f0f<\/td>\nD-CAP+ (with DC compensation)<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n600 kHz or 1 MHz (selectable)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nVQFN-20 (RGB, 3.5 x 4 mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40C to +85C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 6A source and sink output for DDR VTT<\/li>\n
  • D-CAP+ mode for fast transient with DC accuracy<\/li>\n
  • External tracking of 1\/2 VDDQ reference<\/li>\n
  • Selectable 600kHz or 1MHz switching<\/li>\n
  • Auto-skip Eco-mode or forced CCM<\/li>\n
  • Pre-bias startup and output soft discharge<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • DDR\/DDR2\/DDR3\/DDR4 VTT termination<\/li>\n
    • Low-voltage POL regulation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS53317ARGBR from Texas Instruments is a 6A DDR termination synchronous step-down converter with integrated FETs, D-CAP+ mode, and 20-pin VQFN package (tape and reel). Key Specifications Type 6A DDR Termination Synchronous Step-Down Converter with Integrated FETs Conversion Input Voltage 1V to 6V V5IN Supply 4.5V to 6.5V Output Voltage 0.6V to 2V […]<\/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":[19,13],"tags":[],"chip_brand":[138],"class_list":["post-6981","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"6A DDR VTT Buck Conv, D-CAP+, 1-6Vin, VQFN-20, T&R","date_code":"","package_case":"VQFN-20 (3.50 x 4.00 x 0.95 mm, 0.5mm pitch, exposed pad)","in_stock":7890,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps53317.pdf","price":"$2.93 @ 1ku","product_introduction":"The TPS53317ARGBR from Texas Instruments is the tape-and-reel (3000-unit) version of the TPS53317A 6A DDR termination synchronous step-down converter. The R suffix at the end denotes tape and reel packaging with 3000 units per reel, as opposed to the T suffix which indicates a mini-reel of 250 units. The device is electrically and mechanically identical to the TPS53317ARGBT. The TPS53317A is a FET-integrated synchronous buck regulator designed primarily for DDR memory termination applications. It provides a regulated output at 1\/2 VDDQ with both source and sink current capability up to 6A, making it suitable for DDR, DDR2, DDR3, DDR3L, and DDR4 VTT rails. The D-CAP+ mode provides fast transient response with DC compensation for accurate output regulation. The device can also be used as a general-purpose POL converter for 1V to 6V input rails requiring up to 6A output current with output voltage adjustable from 0.6V to 2V.","working_principle":"The TPS53317ARGBR operates identically to the TPS53317ARGBT. The D-CAP+ control mode combines the fast transient response of constant-on-time control with DC compensation that eliminates the output voltage offset. The converter tracks an external reference voltage on the REFIN pin (typically 1\/2 VDDQ), maintaining the DDR termination voltage at the correct level. The bidirectional output stage supports both sourcing and sinking 6A, which is required for DDR VTT termination where the regulator must absorb current when the bus is driven high and supply current when the bus is driven low. The selectable switching frequency (600kHz or 1MHz) and mode (auto-skip or forced CCM) provide design flexibility for efficiency optimization or noise reduction.","pin_description":"
      Pin Group<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      Power<\/td>VIN<\/td>Power<\/td>Conversion input (1-6V)<\/td><\/tr>
      Power<\/td>V5IN<\/td>Power<\/td>5V bias supply (4.5-6.5V)<\/td><\/tr>
      Power<\/td>SW<\/td>Output<\/td>Switch node<\/td><\/tr>
      Control<\/td>REFIN<\/td>Input<\/td>External reference (1\/2 VDDQ tracking)<\/td><\/tr>
      Control<\/td>VOUT\/FB<\/td>Input<\/td>Output voltage feedback<\/td><\/tr>
      Control<\/td>EN<\/td>Input<\/td>Enable<\/td><\/tr>
      Control<\/td>MODE<\/td>Input<\/td>Mode\/frequency select<\/td><\/tr>
      Control<\/td>PGOOD<\/td>Output<\/td>Power-good<\/td><\/tr>
      Bootstrap<\/td>BST<\/td>I\/O<\/td>Bootstrap capacitor<\/td><\/tr><\/table>","application_scenarios":"
      • DDR4 server VTT termination at 0.6V (1\/2 x 1.2V VDDQ) with 6A source\/sink for dual-rank DIMM termination<\/li>
      • General-purpose 3.3V to 1.0V POL at 5A with D-CAP+ mode and 1MHz switching for compact solution size<\/li>
      • LPDDR3 VTT at 0.6V with auto-skip Eco-mode for mobile application idle power reduction<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS53317ARGBT<\/td>VQFN-20<\/td>Mini-reel (250) version<\/td><\/tr>
        TI<\/td>TPS51200DRVR<\/td>SON-10<\/td>DDR VTT, 2A, smaller<\/td><\/tr>
        TI<\/td>TPS51116RGYR<\/td>VQFN-20<\/td>DDR complete solution<\/td><\/tr>
        Infineon<\/td>IR3898MTRPBF<\/td>PQFN-35<\/td>8A DDR-capable buck<\/td><\/tr>
        TI<\/td>TPS53515ARGBR<\/td>VQFN-20<\/td>12A, higher current<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6981","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=6981"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6981\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6981"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6981"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6981"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6981"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}