{"id":3299,"date":"2026-06-01T00:45:12","date_gmt":"2026-06-01T00:45:12","guid":{"rendered":"https:\/\/materialparts.com\/tps78233ddcr\/"},"modified":"2026-06-01T00:45:12","modified_gmt":"2026-06-01T00:45:12","slug":"tps78233ddcr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tps78233ddcr\/","title":{"rendered":"TPS78233DDCR"},"content":{"rendered":"

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

The TPS78233DDCR from Texas Instruments is an ultra-low quiescent current, low-dropout (LDO) linear regulator providing a fixed 3.3V output at up to 150mA. With a quiescent current of just 1.3uA (typical), it is optimized for battery-powered and always-on applications. The device features a 250mV maximum dropout at full load, enable pin for power sequencing, and integrated active output pull-down for rapid discharge. It is housed in a thin SOT-23-5 package suitable for space-constrained designs.<\/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
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n3.3V (Fixed)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n150mA<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n2.7V to 5.5V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062a\u0633\u0631\u0628<\/td>\n250mV max @ 150mA<\/td>\n<\/tr>\n
Quiescent Current (Iq)<\/td>\n1.3uA (typical)<\/td>\n<\/tr>\n
PSRRR<\/td>\n40dB to 15dB (10Hz to 1kHz)<\/td>\n<\/tr>\n
Enable Pin<\/td>\nActive High<\/td>\n<\/tr>\n
Protection<\/td>\nOver-current, Over-temperature, Reverse Polarity<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 to 125\u00b0C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-23-5 Thin (TSOT-23-5)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-low quiescent current of 1.3uA extends battery life<\/li>\n
  • 500nA shutdown current for near-zero power in standby<\/li>\n
  • Active output pull-down for controlled discharge<\/li>\n
  • Stable with no output load (zero-load capability)<\/li>\n
  • Enable pin with CMOS-compatible logic levels<\/li>\n
  • Over-current, over-temperature, and reverse polarity protection<\/li>\n
  • Small SOT-23-5 thin package for compact designs<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Battery-powered IoT and wearable devices<\/li>\n
    • Always-on power rails in portable electronics<\/li>\n
    • Sensor power supply and signal conditioning<\/li>\n
    • Low-power microcontroller voltage regulation<\/li>\n
    • Portable medical instruments<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS78233DDCR from Texas Instruments is an ultra-low quiescent current, low-dropout (LDO) linear regulator providing a fixed 3.3V output at up to 150mA. With a quiescent current of just 1.3uA (typical), it is optimized for battery-powered and always-on applications. The device features a 250mV maximum dropout at full load, enable pin for power […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,32],"tags":[],"chip_brand":[138],"class_list":["post-3299","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-ti"],"acf":{"brief_explanation":"150mA ultra-low Iq (1.3uA) LDO, 3.3V fixed output, 250mV dropout, SOT-23-5 Thin","date_code":"","package_case":"SOT-23-5 Thin \/ TSOT-23-5 (2.9 x 1.6 x 0.9 mm)","in_stock":2409,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tps78233.pdf","price":"$0.38 @ 1ku","product_introduction":"The TPS78233DDCR is a member of Texas Instruments' TPS782 family of ultra-low quiescent current LDO regulators. Designed specifically for battery-operated and always-on systems, this device delivers a fixed 3.3V output at up to 150mA while drawing only 1.3uA of quiescent current. The innovative internal circuit maintains excellent output voltage regulation even under zero-load conditions, addressing a common limitation of traditional PMOS LDOs. The integrated active pull-down rapidly discharges the output when the device is disabled, ensuring predictable power-down behavior. Housed in a thin SOT-23-5 package, the TPS78233DDCR is ideal for space-constrained portable applications.","working_principle":"The TPS78233DDCR uses a PMOS pass transistor to achieve low dropout voltage regulation. The error amplifier compares a fraction of the output voltage (via an internal resistor divider set for 3.3V) with an internal bandgap reference, and adjusts the PMOS gate drive to maintain regulation. The ultra-low quiescent current is achieved through a specialized bias circuit that minimizes operating current while preserving loop stability. An innovative light-load circuit maintains loop gain at zero-load conditions, ensuring regulation without a minimum load requirement. The enable pin (EN) is active-high and compatible with standard CMOS logic. When disabled, an active pull-down circuit discharges the output capacitor to within 5% of VOUT. The device includes built-in over-current, over-temperature, and reverse polarity protection circuits.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>IN<\/td>Power<\/td>Input voltage supply (2.7V to 5.5V)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td>Ground reference<\/td><\/tr>
      3<\/td>EN<\/td>Input<\/td>Enable (active high); connect to IN if not used<\/td><\/tr>
      4<\/td>NC<\/td>-<\/td>No internal connection<\/td><\/tr>
      5<\/td>OUT<\/td>Output<\/td>Regulated 3.3V output<\/td><\/tr><\/table>","application_scenarios":"
      • Always-on power rails in battery-powered IoT sensors and wearables<\/li>
      • Low-dropout regulation for single-cell Li-Ion to 3.3V systems<\/li>
      • Portable medical devices requiring ultra-low standby power consumption<\/li>
      • Microcontroller and sensor power supply in wireless metering applications<\/li>
      • Post-regulation stage after switching converters in noise-sensitive circuits<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>TPS78228DDCR<\/td>SOT-23-5<\/td>2.8V fixed output variant<\/td><\/tr>
        TI<\/td>TPS79933DDCR<\/td>SOT-23-5<\/td>3.3V, 200mA, low noise<\/td><\/tr>
        Microchip<\/td>MCP1824T-3302E\/OT<\/td>SOT-23-5<\/td>3.3V, 300mA LDO<\/td><\/tr>
        Richtek<\/td>RT9013-33GB<\/td>SOT-23-5<\/td>3.3V, 300mA LDO<\/td><\/tr>
        Diodes Inc<\/td>AP2112K-3.3<\/td>SOT-23-5<\/td>3.3V, 600mA LDO<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3299","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=3299"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3299\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3299"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3299"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3299"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3299"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}