{"id":7841,"date":"2026-06-28T02:48:17","date_gmt":"2026-06-28T02:48:17","guid":{"rendered":"https:\/\/materialparts.com\/tps74801drcr\/"},"modified":"2026-06-28T10:20:22","modified_gmt":"2026-06-28T10:20:22","slug":"tps74801drcr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tps74801drcr\/","title":{"rendered":"TPS74801DRCR"},"content":{"rendered":"

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

The TPS74801DRCR is a 1.5A low-dropout linear regulator from Texas Instruments with adjustable 0.8V to 3.6V output, 60mV typical dropout, programmable soft-start, and power-good output in a 10-pin VSON (3x3mm) package.<\/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\n\n\n\n\n\n\n
Output Voltage Range<\/td>\n0.8V to 3.6V (adjustable)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0642\u0635\u0649 \u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c \u0627\u0644\u0623\u0642\u0635\u0649<\/td>\n1.5A<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n0.8V to 5.5V<\/td>\n<\/tr>\n
Bias Voltage Range<\/td>\n2.7V to 5.5V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062a\u0633\u0631\u0628<\/td>\n60mV typical, 165mV max at 1.5A<\/td>\n<\/tr>\n
Reference Voltage<\/td>\n804mV (0.5% initial accuracy)<\/td>\n<\/tr>\n
\u062f\u0642\u0629 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n1.3% over line, load, and temperature<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n1mA typical<\/td>\n<\/tr>\n
PSRRR<\/td>\n50dB at 1kHz, 30dB at 300kHz<\/td>\n<\/tr>\n
\u0636\u0648\u0636\u0627\u0621 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n20\u00b5Vrms<\/td>\n<\/tr>\n
Soft Start<\/td>\nProgrammable via external capacitor<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\n10-VSON (3 x 3 x 1mm)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-low 60mV dropout at 1.5A with 5V bias<\/li>\n
  • Input voltage as low as 0.8V with separate bias supply<\/li>\n
  • Programmable soft-start for monotonic voltage ramp<\/li>\n
  • Power-good open-drain output for sequencing<\/li>\n
  • Internal 833\u03a9 output pulldown when disabled<\/li>\n
  • Stable with only 2.2\u00b5F ceramic output capacitor<\/li>\n
  • Thermal shutdown, overcurrent, and UVLO protection<\/li>\n
  • 1.3% accuracy over line, load, and temperature<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • FPGA and ASIC core power<\/li>\n
    • Post-regulation for DC-DC converters<\/li>\n
    • Processor power supply sequencing<\/li>\n
    • Low-voltage point-of-load regulation<\/li>\n
    • Noise-sensitive analog and RF loads<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS74801DRCR is a 1.5A low-dropout linear regulator from Texas Instruments with adjustable 0.8V to 3.6V output, 60mV typical dropout, programmable soft-start, and power-good output in a 10-pin VSON (3x3mm) package. Key Specifications Output Voltage Range 0.8V to 3.6V (adjustable) Maximum Output Current 1.5A Input Voltage Range 0.8V to 5.5V Bias Voltage Range […]<\/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":[13,32],"tags":[],"chip_brand":[138],"class_list":["post-7841","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"1.5A LDO, 0.8-3.6V adj, 60mV dropout, soft-start, PG, VSON-10 (3x3mm)","date_code":"","package_case":"10-VSON (3 x 3 x 1mm, 0.5mm pitch)","in_stock":6410,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps74801.pdf","price":"$0.78 @ 1ku","product_introduction":"The TPS74801DRCR is a 1.5A low-dropout linear regulator from Texas Instruments designed for very low input voltage and ultra-low dropout applications. The adjustable output ranges from 0.8V to 3.6V with 1.3% accuracy. A separate bias input (2.7V-5.5V) powers the internal control circuitry, enabling the main input to operate as low as 0.8V while maintaining excellent transient performance. The dropout voltage is only 60mV typical at 1.5A with a 5V bias supply. Programmable soft-start via an external capacitor ensures monotonic startup and controlled inrush current. The power-good output monitors the output voltage for sequencing downstream supplies. An internal 833\u03a9 pulldown resistor discharges the output when the device is disabled.","working_principle":"The TPS74801DRCR uses a PMOS pass element with a separate bias supply architecture. The BIAS pin (2.7V-5.5V) powers the error amplifier, bandgap reference, and gate driver, while the IN pin (0.8V-5.5V) supplies the load current through the PMOS pass transistor. This separation allows the input voltage to drop to within 60mV of the output while the bias supply maintains sufficient gate drive for the PMOS. The error amplifier compares the feedback voltage (set by external resistor divider on the FB pin) with the 804mV internal reference, adjusting the gate drive to maintain regulation. The programmable soft-start circuit uses an external capacitor on the SS pin to control the reference voltage ramp rate, ensuring monotonic startup without overshoot. The power-good comparator drives the PG open-drain output when VOUT exceeds 90% of the nominal value. When disabled via EN pin, the internal 833\u03a9 pulldown resistor discharges the output capacitor. Thermal shutdown at 165\u00b0C and current limiting at 2A minimum protect the device from fault conditions.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>OUT<\/td>Power<\/td>Regulated output (0.8V-3.6V, up to 1.5A)<\/td><\/tr>\n
      2<\/td>OUT<\/td>Power<\/td>Regulated output (0.8V-3.6V, up to 1.5A)<\/td><\/tr>\n
      3<\/td>SS<\/td>Input<\/td>Soft-start capacitor connection to GND<\/td><\/tr>\n
      4<\/td>PG<\/td>Output<\/td>Power-good open-drain output<\/td><\/tr>\n
      5<\/td>EN<\/td>Input<\/td>Enable input (active high)<\/td><\/tr>\n
      6<\/td>BIAS<\/td>Power<\/td>Bias supply (2.7V-5.5V)<\/td><\/tr>\n
      7<\/td>GND<\/td>Power<\/td>Ground and thermal pad<\/td><\/tr>\n
      8<\/td>IN<\/td>Power<\/td>Input supply (0.8V-5.5V)<\/td><\/tr>\n
      9<\/td>IN<\/td>Power<\/td>Input supply (0.8V-5.5V)<\/td><\/tr>\n
      10<\/td>FB<\/td>Input<\/td>Feedback voltage (connect external resistor divider)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • FPGA Core Power:<\/strong> 0.8V minimum VIN and 60mV dropout efficiently regulate 1.0V-1.2V core rails from 1.5V-1.8V intermediate supplies<\/li>\n
      • Power Sequencing:<\/strong> PG output and programmable soft-start control the power-up order for multi-rail processors<\/li>\n
      • Post-DC\/DC Regulation:<\/strong> 20\u00b5Vrms noise and 50dB PSRR clean switching converter ripple for noise-sensitive loads<\/li>\n
      • Low-Voltage POL:<\/strong> Separate bias architecture maintains performance even when VIN approaches VOUT<\/li>\n
      • Monotonic Startup:<\/strong> Programmable soft-start ensures voltage rises monotonically, meeting processor startup requirements<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Specs<\/th><\/tr>\n
        TPS74801DRCRG4<\/td>TI<\/td>Green\/RoHS compliant variant<\/td>-<\/td>-<\/td><\/tr>\n
        TPS74801RGWR<\/td>TI<\/td>Same in VQFN-20 (5x5mm) package<\/td>-<\/td>-<\/td><\/tr>\n
        TPS7A4700RGWR<\/td>TI<\/td>1A, ultra-low noise (3.8\u00b5Vrms), higher PSRR<\/td>-<\/td>-<\/td><\/tr>\n
        NCP59748MN1ADJTBG<\/td>onsemi<\/td>1.5A LDO, adjustable, similar specs<\/td>-<\/td>-<\/td><\/tr>\n
        ISL8015IRTAJZ<\/td>Renesas<\/td>1.5A LDO, 2.2V-6V input, DFN-8<\/td>-<\/td>-<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7841","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=7841"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7841\/revisions"}],"predecessor-version":[{"id":8294,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7841\/revisions\/8294"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7841"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7841"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}