{"id":6719,"date":"2026-06-19T03:10:59","date_gmt":"2026-06-19T03:10:59","guid":{"rendered":"https:\/\/materialparts.com\/tlv70233dbvr-2\/"},"modified":"2026-06-19T03:10:59","modified_gmt":"2026-06-19T03:10:59","slug":"tlv70233dbvr-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/tlv70233dbvr-2\/","title":{"rendered":"TLV70233DBVR"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The TLV70233DBVR from Texas Instruments is a 300mA low-dropout (LDO) linear regulator with a fixed 3.3V output in a 5-pin SOT-23 package. Featuring 220mV dropout at 300mA, 35\u00b5A quiescent current, 68dB PSRR at 1kHz, and 2% output accuracy, it operates from 2V to 5.5V input. Stable with only 0.1\u00b5F output capacitance, it includes enable pin, thermal shutdown, and overcurrent protection, making it ideal for battery-powered and noise-sensitive applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n3.3V (Fixed)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n300 mA (max)<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n2.0V to 5.5V<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n220 mV at 300 mA (VOUT = 2.8V)<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n35 \u00b5A (typical)<\/td>\n<\/tr>\n
PSRR<\/td>\n68 dB at 1 kHz<\/td>\n<\/tr>\n
Output Voltage Accuracy<\/td>\n\u00b12% (\u00b10.5% typical)<\/td>\n<\/tr>\n
Line Regulation<\/td>\n1 mV<\/td>\n<\/tr>\n
Load Regulation<\/td>\n1 mV<\/td>\n<\/tr>\n
Minimum Output Capacitance<\/td>\n0.1 \u00b5F (effective)<\/td>\n<\/tr>\n
Enable Pin<\/td>\nYes<\/td>\n<\/tr>\n
Thermal Shutdown<\/td>\nYes (165\u00b0C threshold)<\/td>\n<\/tr>\n
Overcurrent Protection<\/td>\nYes (320 mA min current limit)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-5 (2.9 x 1.6 mm)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Very low dropout: 220mV at 300mA (VOUT = 2.8V)<\/li>\n
  • Low quiescent current: 35\u00b5A typical<\/li>\n
  • High PSRR: 68dB at 1kHz<\/li>\n
  • 2% output voltage accuracy over temperature<\/li>\n
  • Stable with only 0.1\u00b5F effective output capacitance<\/li>\n
  • Enable pin for ON\/OFF control<\/li>\n
  • Thermal shutdown and overcurrent protection<\/li>\n
  • Available in fixed output voltages from 1.2V to 4.8V<\/li>\n
  • Available in SOT-23-5 and 1.5mm x 1.5mm WSON-6 packages<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Bluetooth and ZigBee wireless modules<\/li>\n
    • WLAN and PC add-on card power<\/li>\n
    • Li-Ion battery-powered handheld devices<\/li>\n
    • Portable medical and consumer electronics<\/li>\n
    • Post-regulation for switching power supplies<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TLV70233DBVR from Texas Instruments is a 300mA low-dropout (LDO) linear regulator with a fixed 3.3V output in a 5-pin SOT-23 package. Featuring 220mV dropout at 300mA, 35\u00b5A quiescent current, 68dB PSRR at 1kHz, and 2% output accuracy, it operates from 2V to 5.5V input. Stable with only 0.1\u00b5F output capacitance, it includes […]<\/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":[13,22],"tags":[],"chip_brand":[138],"class_list":["post-6719","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-video-ics","chip_brand-ti"],"acf":{"brief_explanation":"300mA LDO, 3.3V fixed, 220mV dropout, 68dB PSRR, SOT-23-5","date_code":"","package_case":"SOT-23-5 (2.9 x 1.6 x 1.45 mm, 0.95mm pitch)","in_stock":15631,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/tlv702.pdf","price":"$0.126 @ 1ku","product_introduction":"The TLV70233DBVR from Texas Instruments is a 300mA low-dropout linear regulator with a fixed 3.3V output in a compact SOT-23-5 package. Operating from 2V to 5.5V input, it features 220mV dropout at 300mA, 35\u00b5A quiescent current, 68dB PSRR at 1kHz, and 2% output accuracy. Stable with just 0.1\u00b5F output capacitance, it includes an enable pin, thermal shutdown, and overcurrent protection, making it ideal for Bluetooth, ZigBee, and battery-powered portable electronics.","working_principle":"The TLV70233DBVR uses a PMOS pass transistor in a series regulation topology. The error amplifier compares a fraction of the output voltage (through an internal resistor divider set for 3.3V) with an internal precision bandgap reference. The error amplifier output drives the PMOS pass transistor gate to maintain a constant 3.3V output. The low 35\u00b5A quiescent current is achieved by biasing the error amplifier and bandgap reference at minimal current while maintaining adequate loop bandwidth for stability. The 68dB PSRR at 1kHz is achieved through the high gain of the error amplifier and the low output impedance of the PMOS pass device, which attenuates input supply ripple. The enable pin controls an internal switch that disconnects the bias circuitry and pass transistor when driven low, reducing supply current to near zero. The dropout voltage of 220mV at 300mA is determined by the RDS(ON) of the PMOS pass transistor. Thermal shutdown activates at approximately 165\u00b0C junction temperature, disabling the output to prevent damage, and automatically recovers when the junction cools to 145\u00b0C.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>IN<\/td>Power<\/td>Input supply voltage (2.0V to 5.5V)<\/td><\/tr>\n
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>\n
      3<\/td>EN<\/td>Input<\/td>Enable (HIGH = on, LOW = shutdown)<\/td><\/tr>\n
      4<\/td>NC<\/td>\u2014<\/td>No connect<\/td><\/tr>\n
      5<\/td>OUT<\/td>Output<\/td>Regulated 3.3V output<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Power regulation for Bluetooth and ZigBee wireless modules<\/li>\n
      • WLAN and PC add-on card 3.3V supply<\/li>\n
      • Li-Ion battery-powered handheld and portable devices<\/li>\n
      • Post-regulation after DC-DC converters for noise-sensitive loads<\/li>\n
      • Portable medical instrumentation and consumer electronics<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Texas Instruments<\/td>TLV70233PD_BVT<\/td>SOT-23-5<\/td>With active output discharge<\/td><\/tr>\n
        Texas Instruments<\/td>TLV70233DSE<\/td>WSON-6<\/td>1.5x1.5mm, smaller footprint<\/td><\/tr>\n
        Microchip<\/td>MIC5219-3.3YM5<\/td>SOT-23-5<\/td>500mA, similar dropout<\/td><\/tr>\n
        Diodes Inc<\/td>AP2112K-3.3<\/td>SOT-23-5<\/td>600mA, low IQ alternative<\/td><\/tr>\n
        Richtek<\/td>RT9013-33GB<\/td>SOT-23-5<\/td>300mA, pin-compatible<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6719","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=6719"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6719\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6719"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6719"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6719"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6719"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}