{"id":2633,"date":"2026-05-24T01:31:27","date_gmt":"2026-05-24T01:31:27","guid":{"rendered":"https:\/\/materialparts.com\/tps62148rgx\/"},"modified":"2026-05-24T01:31:27","modified_gmt":"2026-05-24T01:31:27","slug":"tps62148rgx","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tps62148rgx\/","title":{"rendered":"TPS62148RGX"},"content":{"rendered":"

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

The TPS62148RGX from Texas Instruments is a 2A synchronous step-down converter in a 10-pin VQFN (RGX) 3x2mm package. Operating from 3V to 17V input with a fixed 1.15V output, it features DCS-Control topology for fast transient response and 17uA quiescent current.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n
\u8f93\u5165\u7535\u538b<\/td>\n3V ~ 17V<\/td>\n<\/tr>\n
Output Voltage<\/td>\n1.15V fixed<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n2A continuous<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n~2.25MHz<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n17uA typical<\/td>\n<\/tr>\n
Efficiency<\/td>\n92% at 12V input, 3.3V\/1A<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\n10-VQFN (RGX) 3.0 x 2.0mm<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • DCS-Control for fast transient response<\/li>\n
  • Fixed 1.15V output, no external feedback divider<\/li>\n
  • 17uA operating quiescent current<\/li>\n
  • 100% duty cycle mode for lowest dropout<\/li>\n
  • 2.25MHz switching allows small inductor<\/li>\n
  • Power good output and enable pin<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • 12V to 1.15V point-of-load conversion<\/li>\n
    • FPGA core voltage regulation<\/li>\n
    • Industrial sensor and PLC power<\/li>\n
    • Networking and telecom equipment<\/li>\n
    • Portable instrumentation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS62148RGX from Texas Instruments is a 2A synchronous step-down converter in a 10-pin VQFN (RGX) 3x2mm package. Operating from 3V to 17V input with a fixed 1.15V output, it features DCS-Control topology for fast transient response and 17uA quiescent current. Key Specifications Input Voltage 3V ~ 17V Output Voltage 1.15V fixed Output […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[138],"class_list":["post-2633","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"2A sync buck DC-DC, 3-17V in, 1.15V fixed out, DCS-Control, 10-VQFN 3x2mm","date_code":"","package_case":"10-VQFN (RGX) (3.0 x 2.0 x 0.9 mm)","in_stock":5278,"datasheet":"https:\/\/www.ti.com\/product\/TPS62148","price":"$1.35 @ 1ku","product_introduction":"The TPS62148RGX from Texas Instruments is a 2A synchronous step-down converter with a fixed 1.15V output in a 10-pin 3x2mm VQFN package. Using TI's DCS-Control topology, it achieves fast transient response while maintaining very low 17uA operating quiescent current. The 2.25MHz switching frequency allows small external inductors. Operating from 3V to 17V input, it is ideal for 12V to 1.15V and 5V to 1.15V point-of-load conversion. A 100% duty cycle mode provides the lowest possible dropout voltage.","working_principle":"The TPS62148 uses TI's proprietary DCS-Control topology combining voltage-mode and current-mode advantages. A fast voltage feedback loop directly controls the output voltage, while internal current feedback provides cycle-by-cycle current limiting and smooth PWM\/PFM mode transition. In PWM mode at moderate-to-heavy loads, the device switches at approximately 2.25MHz. In PFM mode at light loads, switching frequency is reduced to maintain efficiency. The 100% duty cycle mode turns on the high-side MOSFET continuously when VIN approaches VOUT, minimizing dropout.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Power<\/td>Input voltage (3-17V)<\/td><\/tr>
      2<\/td>VIN<\/td>Power<\/td>Input voltage<\/td><\/tr>
      3<\/td>EN<\/td>Input<\/td>Enable (active high)<\/td><\/tr>
      4<\/td>AGND<\/td>Power<\/td>Analog ground<\/td><\/tr>
      5<\/td>FB<\/td>Input<\/td>Feedback (connect to VOUT for 1.15V)<\/td><\/tr>
      6<\/td>PG<\/td>Output<\/td>Power good indicator<\/td><\/tr>
      7<\/td>SW<\/td>Power<\/td>Switch node (inductor connection)<\/td><\/tr>
      8<\/td>PGND<\/td>Power<\/td>Power ground<\/td><\/tr><\/table>","application_scenarios":"
      • 12V\/5V to 1.15V FPGA core voltage rail<\/li>
      • Industrial sensor and PLC low-voltage power<\/li>
      • Networking equipment POL supply<\/li>
      • Portable battery-powered instrumentation<\/li>
      • Consumer electronics low-voltage regulation<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS62147RGX<\/td>10-VQFN<\/td>Adjustable output version<\/td><\/tr>
        TI<\/td>TPS62150RGX<\/td>10-VQFN<\/td>1A, adjustable, DCS-Control<\/td><\/tr>
        Monolithic Power<\/td>MP8759GD-Z<\/td>QFN-10<\/td>2A, 3-17V sync buck<\/td><\/tr>
        TI<\/td>TPS62140RGX<\/td>10-VQFN<\/td>1A, adjustable, DCS-Control<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2633","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=2633"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2633\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2633"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}