{"id":7405,"date":"2026-06-24T04:59:00","date_gmt":"2026-06-24T04:59:00","guid":{"rendered":"https:\/\/materialparts.com\/tps544c25rvft\/"},"modified":"2026-06-24T04:59:00","modified_gmt":"2026-06-24T04:59:00","slug":"tps544c25rvft","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/tps544c25rvft\/","title":{"rendered":"TPS544C25RVFT"},"content":{"rendered":"

Productos<\/h2>\n

The TPS544C25RVFT from Texas Instruments is a 30A synchronous step-down converter with PMBus interface, 4.5-18V input, 0.5-5.5V adjustable output, D-CAP3 control mode, and stackable configuration in a VQFN-HR-28 package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Topology<\/td>\nSynchronous Buck Converter<\/td>\n<\/tr>\n
Input Voltage<\/td>\n4.5 V to 18 V<\/td>\n<\/tr>\n
Output Voltage<\/td>\n0.5 V to 5.5 V (adjustable)<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n30 A max<\/td>\n<\/tr>\n
Control Mode<\/td>\nD-CAP3 (adaptive on-time)<\/td>\n<\/tr>\n
Interface<\/td>\nPMBus (I2C-compatible)<\/td>\n<\/tr>\n
Switching Frequency<\/td>\n200 kHz to 1.2 MHz (progm)<\/td>\n<\/tr>\n
Stackable<\/td>\nYes (up to 4 phases, 120A)<\/td>\n<\/tr>\n
Caracter\u00edsticas<\/td>\nPower good, tracking, sequencing<\/td>\n<\/tr>\n
Protection<\/td>\nOCP, OVP, OTP, UVLO<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nVQFN-HR-28 (5x6mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 30A synchronous buck with PMBus monitoring and D-CAP3 control<\/li>\n
  • Stackable up to 4 phases for 120A with automatic current sharing<\/li>\n
  • 4.5-18V input, 0.5-5.5V output with 200kHz-1.2MHz switching<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • High-current POL for ASICs, FPGAs, and server processors<\/li>\n
    • Telecom and datacom power supply with PMBus telemetry<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS544C25RVFT from Texas Instruments is a 30A synchronous step-down converter with PMBus interface, 4.5-18V input, 0.5-5.5V adjustable output, D-CAP3 control mode, and stackable configuration in a VQFN-HR-28 package. Key Specifications Topology Synchronous Buck Converter Input Voltage 4.5 V to 18 V Output Voltage 0.5 V to 5.5 V (adjustable) Output Current 30 […]<\/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-7405","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"30A sync buck, 4.5-18V in, PMBus, D-CAP3, stackable 4-phase, VQFN-28","date_code":"","package_case":"VQFN-HR-28 (5.00 x 6.00 x 1.00 mm)","in_stock":3500,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps544c25.pdf","price":"$5.20 @ 1ku","product_introduction":"The TPS544C25RVFT from Texas Instruments is a 30A synchronous step-down converter with integrated PMBus digital interface for monitoring, control, and configuration. The device operates from a 4.5V to 18V input and provides an adjustable output from 0.5V to 5.5V at up to 30A. The D-CAP3 control mode provides fast transient response without external compensation, using adaptive on-time modulation with emulated current ramp for stable operation with low-ESR output capacitors. The PMBus interface allows reading of input\/output voltage, current, temperature, and fault status, as well as configuration of output voltage, switching frequency, and protection thresholds. Up to four TPS544C25 devices can be stacked for 4-phase, 120A output with automatic current sharing. The device supports output voltage tracking and sequencing for powering complex multi-rail systems. The VQFN-HR-28 package features an enhanced thermal pad for efficient heat dissipation.","working_principle":"The TPS544C25RVFT operates as a D-CAP3 synchronous buck converter with PMBus digital control. (1) D-CAP3 Control: The D-CAP3 (Direct Capacitor Access with emulated ramp) mode uses an emulated inductor current ramp to stabilize the control loop without external compensation components. The adaptive on-time modulation adjusts the on-time based on input\/output voltage ratio to maintain approximately constant switching frequency. (2) PMBus Interface: The PMBus (Power Management Bus) is an I2C-based protocol that allows the host system to read telemetry data (VOUT, IOUT, temperature, faults) and write configuration data (VOUT setpoint, frequency, thresholds). All parameters can be stored in non-volatile memory. (3) Stacking: When multiple TPS544C25 devices share a COMP pin, they operate in interleaved multi-phase mode. The master device generates the PWM signals for all phases, and automatic current sharing balances the load current between phases. Phase interleaving reduces input\/output ripple and improves thermal distribution. (4) Protection: Overcurrent protection uses cycle-by-cycle current limiting. Over-voltage and under-voltage monitors on VOUT provide fault detection. Over-temperature protection shuts down the converter at 150C junction temperature.","pin_description":"
      Pin Group<\/th>Count<\/th>Function<\/th><\/tr>
      Power<\/td>VIN, VOUT, GND, SW<\/td>Power path<\/td><\/tr>
      Control<\/td>EN, PGOOD, TRACK<\/td>Enable, status, sequencing<\/td><\/tr>
      PMBus<\/td>SDA, SCL, ALERT<\/td>Communication interface<\/td><\/tr>
      Config<\/td>COMP, RT, VSET<\/td>Loop, frequency, voltage<\/td><\/tr>
      Bootstrap<\/td>BOOT<\/td>High-side gate drive<\/td><\/tr><\/table>","application_scenarios":"
      • 30A POL for ASICs and FPGAs with PMBus telemetry in servers<\/li>
      • Stacked 4-phase 120A power supply for high-current processors<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS544B25RVFT<\/td>VQFN-28<\/td>20A version, same family<\/td><\/tr>
        Infineon<\/td>IR3898MTR1PBF<\/td>PQFN-28<\/td>30A, similar function<\/td><\/tr>
        Renesas<\/td>ISL68201IRAZ-T<\/td>QFN-32<\/td>Digital PWM controller<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7405","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=7405"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7405\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7405"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7405"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7405"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7405"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}