{"id":6605,"date":"2026-06-18T15:38:16","date_gmt":"2026-06-18T15:38:16","guid":{"rendered":"https:\/\/ic-vendor.com\/ht7333-a\/"},"modified":"2026-06-18T15:38:16","modified_gmt":"2026-06-18T15:38:16","slug":"ht7333-a","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/es\/ht7333-a\/","title":{"rendered":"HT7333-A"},"content":{"rendered":"

Productos<\/h2>\n

The HT7333-A is a low-power, high-accuracy CMOS LDO voltage regulator from Holtek Semiconductor. It provides a fixed 3.3V output at up to 250 mA with ultra-low quiescent current of 4 \u00b5A. Packaged in a SOT-89 form factor, it is designed for battery-powered and always-on applications requiring long battery life with stable voltage regulation.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n3.3V (Fixed, \u00b13% accuracy)<\/td>\n<\/tr>\n
Maximum Output Current<\/td>\n250 mA<\/td>\n<\/tr>\n
Input Voltage Range<\/td>\n3.6V to 12V<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n90 mV @ 40 mA<\/td>\n<\/tr>\n
Corriente de reposo<\/td>\n4 \u00b5A (typical)<\/td>\n<\/tr>\n
Output Capacitor<\/td>\nCeramic compatible (10 \u00b5F recommended)<\/td>\n<\/tr>\n
Line Regulation<\/td>\n0.2%\/V (typical)<\/td>\n<\/tr>\n
Load Regulation<\/td>\n0.2%\/mA (typical)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOT-89 (4.5\u00d72.5\u00d71.5 mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Ultra-low quiescent current: 4 \u00b5A typical for extended battery life<\/li>\n
  • Low dropout voltage: 90 mV at 40 mA load<\/li>\n
  • High output accuracy: \u00b13%<\/li>\n
  • Stable with ceramic output capacitor<\/li>\n
  • Built-in current limiting and thermal shutdown<\/li>\n
  • Wide input voltage range up to 12V<\/li>\n
  • No external noise bypass capacitor required<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Battery-powered MCU and sensor systems<\/li>\n
    • IoT and wireless module power supply<\/li>\n
    • Always-on circuits and sleep-mode regulators<\/li>\n
    • Portable medical devices<\/li>\n
    • Remote monitoring and metering equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The HT7333-A is a low-power, high-accuracy CMOS LDO voltage regulator from Holtek Semiconductor. It provides a fixed 3.3V output at up to 250 mA with ultra-low quiescent current of 4 \u00b5A. Packaged in a SOT-89 form factor, it is designed for battery-powered and always-on applications requiring long battery life with stable voltage regulation. […]<\/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":[262],"class_list":["post-6605","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-holtek"],"acf":{"brief_explanation":"CMOS LDO, 3.3V fixed, 250mA, 4\u00b5A Iq, SOT-89","date_code":"","package_case":"SOT-89 (4.5\u00d72.5\u00d71.5 mm)","in_stock":13240,"datasheet":"https:\/\/www.holtek.com\/documents\/10179\/116711\/HT73xxAv130.pdf","price":"$0.06 @ 1ku","product_introduction":"The HT7333-A from Holtek Semiconductor is an ultra-low-power CMOS LDO voltage regulator providing a fixed 3.3V output at up to 250 mA. Its exceptionally low quiescent current of 4 \u00b5A makes it ideal for battery-powered and always-on applications where power efficiency is critical. The SOT-89 package offers good thermal performance in a compact footprint, and the device supports ceramic output capacitors for BOM simplification.","working_principle":"The HT7333-A uses a CMOS bandgap reference and error amplifier to regulate the output voltage. A PMOS pass transistor is driven by the error amplifier to maintain the 3.3V output. The ultra-low 4 \u00b5A quiescent current is achieved through the CMOS design, which eliminates the bipolar bias currents found in traditional LDO regulators. The internal current limiter protects against overcurrent conditions, while thermal shutdown disables the output when the junction temperature exceeds safe limits. The low dropout voltage of 90 mV at light loads maximizes usable battery capacity.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>\n
      2<\/td>VIN<\/td>Input<\/td>Input voltage (3.6-12V)<\/td><\/tr>\n
      3<\/td>VOUT<\/td>Output<\/td>Regulated 3.3V output<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Battery-powered MCU systems requiring ultra-low standby current<\/li>\n
      • IoT wireless module 3.3V power supply with long battery life<\/li>\n
      • Always-on sleep-mode power rails in portable devices<\/li>\n
      • Remote metering and monitoring equipment power regulation<\/li>\n
      • Portable medical instrument battery-powered LDO<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Holtek<\/td>HT7333-1<\/td>SOT-89<\/td>3.0V output variant<\/td><\/tr>\n
        Holtek<\/td>HT7333-2<\/td>SOT-89<\/td>3.6V output variant<\/td><\/tr>\n
        Torex<\/td>XC6206P332MR<\/td>SOT-23-3<\/td>200mA, SOT-23, similar Iq<\/td><\/tr>\n
        Microchip<\/td>MCP1700T-3302E\/MB<\/td>SOT-89<\/td>250mA, 1.6\u00b5A Iq, pin-compatible<\/td><\/tr>\n
        Richtek<\/td>RT9013-33GB<\/td>SOT-23-3<\/td>300mA, higher Iq<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/6605","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=6605"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/posts\/6605\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/media?parent=6605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/categories?post=6605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/tags?post=6605"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/es\/wp-json\/wp\/v2\/chip_brand?post=6605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}