{"id":6593,"date":"2026-06-18T15:27:30","date_gmt":"2026-06-18T15:27:30","guid":{"rendered":"https:\/\/materialparts.com\/mic5219-2-8ym5-tr-2\/"},"modified":"2026-06-18T15:27:30","modified_gmt":"2026-06-18T15:27:30","slug":"mic5219-2-8ym5-tr-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/mic5219-2-8ym5-tr-2\/","title":{"rendered":"mic5219-2.8ym5-tr"},"content":{"rendered":"

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

The MIC5219-2.8YM5-TR is a 500mA low-dropout (LDO) voltage regulator from Microchip Technology. It provides a fixed 2.8V output with ultra-low noise and high PSRR, making it ideal for RF and noise-sensitive applications. Packaged in a SOT-23-5, it features enable control, current limiting, and thermal shutdown protection.<\/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\n
\u062c\u0647\u062f \u0627\u0644\u062e\u0631\u062c<\/td>\n2.8V (Fixed)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u062f \u0627\u0644\u0623\u0642\u0635\u0649 \u0644\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c \u0627\u0644\u0623\u0642\u0635\u0649<\/td>\n500 mA<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n2.5 \u0641\u0648\u0644\u062a \u0625\u0644\u0649 16 \u0641\u0648\u0644\u062a<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u062a\u0633\u0631\u0628<\/td>\n150 mV @ 150 mA<\/td>\n<\/tr>\n
PSRRR<\/td>\n70 dB @ 1 kHz<\/td>\n<\/tr>\n
\u0636\u0648\u0636\u0627\u0621 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n50 nV\/\u221aHz<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n450 \u00b5A (typical)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0.01 \u00b5A (typical)<\/td>\n<\/tr>\n
Output Capacitor<\/td>\nCeramic compatible<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +125 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-23-5<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-low noise: 50 nV\/\u221aHz output noise density<\/li>\n
  • High PSRR: 70 dB at 1 kHz for supply noise rejection<\/li>\n
  • Very low dropout: 150 mV at 150 mA load<\/li>\n
  • Enable pin with <0.01 \u00b5A shutdown current<\/li>\n
  • Stable with ceramic output capacitor (0.47 \u00b5F min)<\/li>\n
  • Active pulldown on output for fast discharge<\/li>\n
  • Current limit and thermal shutdown protection<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • RF and wireless transceiver power supply<\/li>\n
    • Mobile phone and smartphone LDO regulation<\/li>\n
    • Audio codec and DAC\/ADC reference<\/li>\n
    • GPS receiver power management<\/li>\n
    • Battery-powered portable instruments<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MIC5219-2.8YM5-TR is a 500mA low-dropout (LDO) voltage regulator from Microchip Technology. It provides a fixed 2.8V output with ultra-low noise and high PSRR, making it ideal for RF and noise-sensitive applications. Packaged in a SOT-23-5, it features enable control, current limiting, and thermal shutdown protection. Key Specifications Output Voltage 2.8V (Fixed) Maximum […]<\/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":[134],"class_list":["post-6593","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-microchip"],"acf":{"brief_explanation":"500mA LDO, 2.8V fixed, 150mV dropout, low noise, SOT-23-5","date_code":"","package_case":"SOT-23-5 (2.9\u00d71.6\u00d71.1 mm)","in_stock":7456,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/mic5219","price":"$1.07 @ 1ku","product_introduction":"The MIC5219-2.8YM5-TR from Microchip Technology is a 500mA low-dropout voltage regulator with a fixed 2.8V output. It combines ultra-low noise (50 nV\/\u221aHz) with high PSRR (70 dB @ 1 kHz), making it ideal for RF transceiver and noise-sensitive analog power supply applications. The device features an enable pin with near-zero shutdown current, active output pulldown, and stability with ceramic capacitors.","working_principle":"The MIC5219 uses a PNP pass transistor in a common-emitter configuration, which allows the very low dropout voltage. A bandgap reference provides a stable voltage that is compared with a fraction of the output by the error amplifier. The error amplifier drives the PNP pass transistor to maintain output regulation. The enable pin controls the bias circuitry, reducing quiescent current to <0.01 \u00b5A in shutdown. Current limiting is implemented by sensing pass transistor current, and thermal shutdown protects against excessive junction temperature.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      1<\/td>IN<\/td>Input<\/td>Input voltage (2.5-16V)<\/td><\/tr>\n
      2<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>\n
      3<\/td>EN<\/td>Input<\/td>Enable (active high)<\/td><\/tr>\n
      4<\/td>BYP<\/td>Input<\/td>Noise bypass capacitor (optional, for lowest noise)<\/td><\/tr>\n
      5<\/td>OUT<\/td>Output<\/td>Regulated 2.8V output<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • RF transceiver VCO and PA power supply requiring ultra-low noise<\/li>\n
      • Mobile phone and smartphone baseband power regulation<\/li>\n
      • Audio DAC and codec reference voltage supply<\/li>\n
      • GPS receiver low-noise power management<\/li>\n
      • Portable medical instrument precision analog supply<\/li>\n<\/ul>","alternative_models":"\n
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>\n
        Microchip<\/td>MIC5219-3.3YM5-TR<\/td>SOT-23-5<\/td>3.3V output variant<\/td><\/tr>\n
        Microne<\/td>ME6211C28M5G<\/td>SOT-23-5<\/td>2.8V output, 500mA, similar specs<\/td><\/tr>\n
        TI<\/td>TPS73628DBVR<\/td>SOT-23-5<\/td>400mA LDO, 2.8V, very low noise<\/td><\/tr>\n
        Torex<\/td>XC6220B281MR<\/td>SOT-25<\/td>2.8V, 300mA, high PSRR<\/td><\/tr>\n
        Microchip<\/td>MIC5205-2.8YM5-TR<\/td>SOT-23-5<\/td>150mA, lower cost alternative<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6593","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=6593"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6593\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6593"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6593"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}