{"id":8929,"date":"2026-07-01T02:47:15","date_gmt":"2026-07-01T02:47:15","guid":{"rendered":"https:\/\/materialparts.com\/tps563249ddcr-2\/"},"modified":"2026-07-03T08:00:59","modified_gmt":"2026-07-03T08:00:59","slug":"tps563249ddcr-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/tps563249ddcr-2\/","title":{"rendered":"TPS563249DDCR"},"content":{"rendered":"

Productos<\/h2>\n

The TPS563249DDCR is a Texas Instruments 17V 3A synchronous buck converter with D-CAP3 control, 1.4MHz forced CCM, and 70mohm\/30mohm FETs. Packaged in SOT-23-6, -40C to +125C.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n
Input Voltage<\/td>\n4.5 V to 17 V<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n3 A<\/td>\n<\/tr>\n
Frequency<\/td>\n1.4 MHz fixed<\/td>\n<\/tr>\n
RDS(on) HS<\/td>\n70 mohm<\/td>\n<\/tr>\n
RDS(on) LS<\/td>\n30 mohm<\/td>\n<\/tr>\n
Paquete<\/td>\nSOT-23-THN-6<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 4.5V to 17V input range<\/li>\n
  • 3A output, 70mohm\/30mohm FETs<\/li>\n
  • D-CAP3 control, no compensation<\/li>\n
  • 1.4MHz forced CCM<\/li>\n
  • +\/-1% Vref accuracy<\/li>\n
  • 1.7ms internal soft-start<\/li>\n
  • Hiccup-mode OCP<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Industrial 12V\/5V POL<\/li>\n
    • Set-top box and STB<\/li>\n
    • Consumer electronics<\/li>\n
    • Network equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS563249DDCR is a Texas Instruments 17V 3A synchronous buck converter with D-CAP3 control, 1.4MHz forced CCM, and 70mohm\/30mohm FETs. Packaged in SOT-23-6, -40C to +125C. Key Specifications Input Voltage 4.5 V to 17 V Output Current 3 A Frequency 1.4 MHz fixed RDS(on) HS 70 mohm RDS(on) LS 30 mohm Package SOT-23-THN-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":[31,13],"tags":[578],"chip_brand":[138],"class_list":["post-8929","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","tag-tps563249ddcr","chip_brand-ti"],"acf":{"brief_explanation":"3A 17V buck, D-CAP3, 1.4MHz FCCM, SOT-23-6","date_code":"","package_case":"6-Pin SOT-23-THN (2.9 x 1.6 x 0.9 mm)","in_stock":9500,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps563249.pdf","price":"$0.230 @ 1ku","product_introduction":"The TPS563249DDCR is a Texas Instruments 3A synchronous step-down converter in an ultra-compact 6-pin SOT-23-THN package. The 4.5V to 17V input range covers 5V and 12V distributed bus architectures. The integrated 70mohm high-side and 30mohm low-side MOSFETs deliver 3A continuous output with high efficiency. D-CAP3 control provides fast transient response with no external compensation, supporting low-ESR ceramic and polymer output capacitors. The forced continuous conduction mode (FCCM) maintains constant 1.4MHz switching frequency at all loads, eliminating variable-frequency EMI that complicates system noise filtering. The +\/-1% feedback voltage accuracy over temperature provides tight output regulation for digital loads. The 1.7ms internal soft-start limits inrush current during startup. Cycle-by-cycle peak current limit and hiccup-mode overcurrent protection handle sustained overloads. Undervoltage and thermal shutdown provide additional fault handling. The low 10uA shutdown current minimizes battery drain when disabled. The 6-pin SOT-23-THN package occupies only 4.6mm2 of board area. Packaged in SOT-23-6 rated for -40C to +125C junction.","working_principle":"The TPS563249 uses D-CAP3 (Direct Control with Adaptive On-Time, 3rd generation) control topology. D-CAP3 is an adaptive constant on-time control with a virtual inductor current ripple emulator and internal compensation. The on-time is inversely proportional to VIN and directly proportional to VOUT, maintaining approximately 1.4MHz switching frequency. The internal ripple injection circuit adds a synthetic ramp to the FB pin signal, providing the PWM ramp without requiring output voltage ripple. This allows the use of very low-ESR ceramic output capacitors while maintaining stability. The error amplifier in D-CAP3 provides DC accuracy with internal Type-2 compensation that covers a wide range of L-C output filter values. In FCCM, the low-side MOSFET is always driven, allowing negative inductor current at light loads and maintaining constant frequency. The peak current limit comparator monitors the high-side FET current each cycle. When the current limit is exceeded for 128 consecutive cycles, hiccup-mode protection disables switching for a recovery period, limiting average power dissipation during faults.","pin_description":"
      Pin<\/th>Mnemonic<\/th>Description<\/th><\/tr>
      1<\/td>BOOT<\/td>Bootstrap capacitor<\/td><\/tr>
      2<\/td>VIN<\/td>Input supply (4.5-17V)<\/td><\/tr>
      3<\/td>EN<\/td>Enable (active high)<\/td><\/tr>
      4<\/td>FB<\/td>Feedback (0.6V reference)<\/td><\/tr>
      5<\/td>GND<\/td>Ground (exposed pad)<\/td><\/tr>
      6<\/td>SW<\/td>Switch node<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial 12V to 3.3V POL with 3A output and D-CAP3 no-compensation design<\/li>\n
      • Set-top box 12V to 5V supply with 1.4MHz FCCM for predictable EMI<\/li>\n
      • Consumer electronics 5V to 1.2V core supply with 1% accuracy<\/li>\n
      • Network equipment 12V to 1.8V with SOT-23-6 compact footprint<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TPS563248DDCR<\/td>TI<\/td>Auto PFM\/FCCM mode<\/td><\/tr>
        TPS563201DDCR<\/td>TI<\/td>Lower cost, simpler<\/td><\/tr>
        TPS562249DDCR<\/td>TI<\/td>2A version<\/td><\/tr>
        MP8759GD<\/td>MPS<\/td>Similar 3A buck<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=8929"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8929\/revisions"}],"predecessor-version":[{"id":9462,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/8929\/revisions\/9462"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=8929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=8929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=8929"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=8929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}