{"id":7478,"date":"2026-06-24T07:28:29","date_gmt":"2026-06-24T07:28:29","guid":{"rendered":"https:\/\/materialparts.com\/tps79333dbvr\/"},"modified":"2026-06-24T07:28:29","modified_gmt":"2026-06-24T07:28:29","slug":"tps79333dbvr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tps79333dbvr\/","title":{"rendered":"TPS79333DBVR"},"content":{"rendered":"

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

The TPS79333DBVR from Texas Instruments is a 200mA, low-noise, high-PSRR LDO regulator with fixed 3.3V output in SOT-23-5 package. With 70dB PSRR at 10kHz, 32uVRMS output noise, and 112mV dropout, it provides ultra-clean power for noise-sensitive RF and analog circuits.<\/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>\n3.3 V (fixed)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n200 mA<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n2.7 V to 5.5 V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062a\u0633\u0631\u0628<\/td>\n112 mV typ @ 200mA<\/td>\n<\/tr>\n
PSRRR<\/td>\n70 dB @ 10kHz<\/td>\n<\/tr>\n
Noise<\/td>\n32 uVRMS (10Hz-100kHz)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n170 uA (typical)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\nLess than 1 uA<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-23-5 (DBV)<\/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 C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-low 32uVRMS output noise for sensitive analog and RF circuits<\/li>\n
  • 70dB PSRR rejects input supply ripple and noise<\/li>\n
  • 112mV dropout at 200mA for wide input-output differential<\/li>\n
  • Fast start-up time of 50us with noise bypass capacitor<\/li>\n
  • 2.2uF ceramic output capacitor stability<\/li>\n
  • Enable pin with active output discharge<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • RF receiver and transmitter power supply<\/li>\n
    • VCO and PLL power supply filtering<\/li>\n
    • High-speed ADC\/DAC reference supply<\/li>\n
    • Audio DAC and headphone amplifier power<\/li>\n
    • Low-noise sensor signal conditioning<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TPS79333DBVR from Texas Instruments is a 200mA, low-noise, high-PSRR LDO regulator with fixed 3.3V output in SOT-23-5 package. With 70dB PSRR at 10kHz, 32uVRMS output noise, and 112mV dropout, it provides ultra-clean power for noise-sensitive RF and analog circuits. Key Specifications Output Voltage 3.3 V (fixed) Output Current 200 mA Input Voltage […]<\/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":[31,13],"tags":[],"chip_brand":[138],"class_list":["post-7478","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"200mA LDO, 3.3V fixed, 70dB PSRR, 32uV noise, SOT-23-5","date_code":"","package_case":"SOT-23-5 \/ DBV (2.9 x 1.6 mm)","in_stock":11890,"datasheet":"https:\/\/www.ti.com\/product\/TPS793","price":"$0.65 @ 1ku","product_introduction":"The TPS79333DBVR from Texas Instruments is a 200mA low-noise, high-PSRR low-dropout linear regulator with a fixed 3.3V output voltage. Designed specifically for noise-sensitive applications, it provides 70dB power supply rejection ratio at 10kHz and only 32uVRMS output noise (10Hz to 100kHz) with a 0.01uF noise bypass capacitor. The 112mV dropout voltage at 200mA allows operation from supplies as low as 3.47V. A noise reduction (NR) pin with an external capacitor filters the internal bandgap reference voltage, dramatically reducing output noise. The fast 50us start-up time is achieved with an active quick discharge circuit on the NR capacitor.","working_principle":"The TPS79333DBVR operates as a low-noise precision LDO regulator. (1) The internal bandgap reference provides a stable voltage that is amplified by an internal resistor divider to produce the 3.3V output. The noise reduction (NR) pin allows an external bypass capacitor to filter the reference voltage noise, which is the dominant source of output noise at low frequencies. (2) The error amplifier compares a fraction of the output voltage with the filtered reference and drives the P-channel pass transistor to maintain regulation. (3) The high PSRR of 70dB is achieved through the combination of the filtered reference, high-gain error amplifier, and the low output impedance of the pass transistor. The EN pin controls the output, with active discharge of the output capacitor when disabled for fast power-down.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>IN<\/td>Input supply (2.7-5.5V)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td><\/tr>
      3<\/td>EN<\/td>Enable input (active high)<\/td><\/tr>
      4<\/td>NR<\/td>Noise reduction \/ bypass capacitor<\/td><\/tr>
      5<\/td>OUT<\/td>Regulated 3.3V output<\/td><\/tr><\/table>","application_scenarios":"
      • RF transceiver VCO and PLL power supply requiring ultra-low noise<\/li>
      • High-speed ADC and DAC voltage reference with PSRR isolation<\/li>
      • Audio DAC and headphone amplifier clean power supply<\/li>
      • Low-noise sensor conditioning front-end power<\/li>
      • Wireless module post-regulation from switching DC-DC converters<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        TPS79318DBVR<\/td>TI<\/td>1.8V fixed output version<\/td><\/tr>
        TPS79325DBVR<\/td>TI<\/td>2.5V fixed output version<\/td><\/tr>
        TPS79533DBVR<\/td>TI<\/td>150mA, lower noise, newer<\/td><\/tr>
        TPS73633DBVR<\/td>TI<\/td>400mA, RF LDO, SOT-23-5<\/td><\/tr>
        LT1763CS8-3.3#PBF<\/td>Analog Devices<\/td>500mA, low noise LDO, SOIC-8<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7478","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=7478"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7478\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7478"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7478"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}