{"id":10721,"date":"2026-07-20T10:42:12","date_gmt":"2026-07-20T10:42:12","guid":{"rendered":"https:\/\/ic-vendor.com\/lp3883esx-1-2-nopb\/"},"modified":"2026-07-20T10:42:12","modified_gmt":"2026-07-20T10:42:12","slug":"lp3883esx-1-2-nopb","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/lp3883esx-1-2-nopb\/","title":{"rendered":"LP3883ESX-1.2\/NOPB"},"content":{"rendered":"

Productos<\/h2>\n

The LP3883ESX-1.2\/NOPB is a 3 A ultra-low-dropout linear regulator from Texas Instruments with a fixed 1.2 V output. Packaged in a TO-263 (DDPAK-5), it uses a CMOS architecture with external bias rail for ultra-low VIN operation. The device features 210 mV typical dropout at 3 A, low ground current, and fast transient response, making it ideal for high-current, low-voltage core power applications.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n1.2 V (Fixed)<\/td>\n<\/tr>\n
Corriente de salida<\/td>\n3 A<\/td>\n<\/tr>\n
Input Voltage Range<\/td>\n1.426 V to 5.5 V (VIN) \/ 4.5\u20136 V (VBIAS)<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n210 mV typical at 3 A<\/td>\n<\/tr>\n
Ground Pin Current<\/td>\n3 mA typical at full load<\/td>\n<\/tr>\n
Shutdown Current<\/td>\n60 nA typical<\/td>\n<\/tr>\n
Paquete<\/td>\nTO-263 (DDPAK-5 \/ KTT)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Ultra-low dropout: 210 mV at 3 A using NMOS pass transistor<\/li>\n
  • CMOS architecture \u2014 negligible drive current vs. bipolar LDOs<\/li>\n
  • External bias rail enables operation from ultra-low VIN<\/li>\n
  • Fast transient response for DSP and microcontroller cores<\/li>\n
  • 1.5% output accuracy at 25\u00b0C<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • DSP and microcontroller core voltage regulation<\/li>\n
    • FPGA core power supplies<\/li>\n
    • Switch-mode power supply post-regulation<\/li>\n
    • High-current low-voltage point-of-load regulation<\/li>\n
    • Server and computing core power<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LP3883ESX-1.2\/NOPB is a 3 A ultra-low-dropout linear regulator from Texas Instruments with a fixed 1.2 V output. Packaged in a TO-263 (DDPAK-5), it uses a CMOS architecture with external bias rail for ultra-low VIN operation. The device features 210 mV typical dropout at 3 A, low ground current, and fast transient response, […]<\/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":[2061],"chip_brand":[138],"class_list":["post-10721","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","tag-lp3883esx-1-2-nopb","chip_brand-ti"],"acf":{"brief_explanation":"3 A ultra-LDO, 1.2 V fixed, 210 mV dropout, CMOS, TO-263, external bias","date_code":"","package_case":"TO-263 (DDPAK-5 \/ KTT) \u2014 10.16 x 15.24 mm","in_stock":10255,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lp3883.pdf","price":"$2.52 @ 1ku","product_introduction":"The LP3883 is a high-current, fast-response ultra-low-dropout linear regulator from Texas Instruments. Fabricated on a CMOS process, the device operates from two input voltages: VBIAS provides gate drive for the NMOS power transistor, while VIN supplies power to the load. This dual-rail architecture enables operation from ultra-low VIN voltages while maintaining regulation. Unlike bipolar regulators, the CMOS architecture consumes extremely low quiescent current at any output load. The 1.2 V fixed version delivers 3 A with only 210 mV dropout, making it ideal for high-current core voltage applications.","working_principle":"The LP3883 uses an NMOS pass transistor driven by an external VBIAS rail (4.5\u20136 V), which provides sufficient gate drive even when VIN is very close to VOUT. The output voltage is sensed by an internal resistor divider and compared against a precision bandgap reference. The error amplifier drives the NMOS gate to maintain regulation. The NMOS pass device provides very low dropout voltage because the gate can be driven above VIN by the VBIAS rail, allowing the transistor to fully enhance. The CMOS architecture means gate drive current is negligible compared to the base current required by PNP-based bipolar LDOs. The shutdown pin turns off the NMOS gate drive, reducing current to 60 nA.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Input<\/td>Input supply to load (1.426\u20135.5 V)<\/td><\/tr>
      2<\/td>GND<\/td>Power<\/td>Ground \/ thermal tab<\/td><\/tr>
      3<\/td>SD<\/td>Input<\/td>Shutdown control (low = off)<\/td><\/tr>
      4<\/td>VBIAS<\/td>Input<\/td>Bias supply for NMOS gate drive (4.5\u20136 V)<\/td><\/tr>
      5<\/td>VOUT<\/td>Output<\/td>Regulated 1.2 V output<\/td><\/tr><\/table>","application_scenarios":"
      • 1.2 V DSP core power from 1.8 V or 2.5 V rail<\/li>
      • FPGA VCCINT regulation at 1.2 V<\/li>
      • Post-regulation after a switching regulator for noise-sensitive loads<\/li>
      • Server CPU and memory core voltage regulation<\/li>
      • High-current POL regulation in computing platforms<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LP3883ESX-1.5\/NOPB<\/td>TO-263<\/td>1.5 V output variant<\/td><\/tr>
        TI<\/td>TPS5450DDAR<\/td>8-SO-PowerPAD<\/td>5 A buck converter, switching alternative<\/td><\/tr>
        Analog Devices<\/td>ADP3228ACPZ-1.2-R7<\/td>8-LFCSP<\/td>3 A LDO, 1.2 V<\/td><\/tr>
        Maxim<\/td>MAX8556ETE+T<\/td>28-TSSOP<\/td>6 A LDO controller<\/td><\/tr>
        Infineon<\/td>TLE4274GV33<\/td>TO-252<\/td>200 mA LDO, 3.3 V, automotive<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/comments?post=10721"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/10721\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=10721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=10721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=10721"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=10721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}