{"id":7545,"date":"2026-06-26T04:21:46","date_gmt":"2026-06-26T04:21:46","guid":{"rendered":"https:\/\/materialparts.com\/mic69502wr\/"},"modified":"2026-06-26T04:21:46","modified_gmt":"2026-06-26T04:21:46","slug":"mic69502wr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/mic69502wr\/","title":{"rendered":"MIC69502WR"},"content":{"rendered":"

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

The MIC69502WR from Microchip Technology (formerly Micrel) is a 5A ultra-low-dropout adjustable LDO regulator with 250mV typical dropout, 0.5V minimum output, and enable in 7-pin S-PAK package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u8f93\u51fa\u7535\u6d41<\/td>\n5 A<\/td>\n<\/tr>\n
Output Voltage<\/td>\n0.5V to 5.5V (adjustable)<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n250 mV typical @ 5A<\/td>\n<\/tr>\n
Maximum Dropout<\/td>\n500 mV @ 5A over temperature<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n1.65V to 5.5V<\/td>\n<\/tr>\n
Initial Accuracy<\/td>\n+\/-1.0%<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n5 mA typical<\/td>\n<\/tr>\n
Stable With<\/td>\n10uF ceramic output capacitor @ 5A<\/td>\n<\/tr>\n
Enable<\/td>\nYes (logic-level shutdown)<\/td>\n<\/tr>\n
Protection<\/td>\nThermal shutdown, current limit<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nS-PAK-7 (WR suffix)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +125 C (TJ)<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • 5A high output current for ASIC\/FPGA core supply<\/li>\n
  • 250mV ultra-low dropout at full 5A load<\/li>\n
  • 0.5V minimum adjustable output for sub-1V cores<\/li>\n
  • +\/-1% initial output voltage tolerance<\/li>\n
  • Stable with 10uF ceramic capacitor at 5A<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • ASIC core voltage regulator<\/li>\n
    • PLD\/FPGA core power supply<\/li>\n
    • Linear point-of-load conversion<\/li>\n
    • High-speed post-regulator<\/li>\n
    • Low-voltage high-current supply<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MIC69502WR from Microchip Technology (formerly Micrel) is a 5A ultra-low-dropout adjustable LDO regulator with 250mV typical dropout, 0.5V minimum output, and enable in 7-pin S-PAK package. Key Specifications Output Current 5 A Output Voltage 0.5V to 5.5V (adjustable) Dropout Voltage 250 mV typical @ 5A Maximum Dropout 500 mV @ 5A over […]<\/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-7545","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-microchip"],"acf":{"brief_explanation":"5A adj LDO, 250mV dropout, 0.5V-5.5V out, S-PAK-7","date_code":"","package_case":"S-PAK-7 (6.5 x 8.9 x 2.3 mm, 7 leads + tab)","in_stock":1008,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/mic69502.pdf","price":"$2.80 @ 1ku","product_introduction":"The MIC69502WR from Microchip Technology (formerly Micrel) is a 5A ultra-low-dropout adjustable linear regulator in S-PAK-7 package. The device features 250mV typical dropout voltage at full 5A load, adjustable output from 0.5V to 5.5V, and +\/-1% initial output voltage accuracy. The 1.65V to 5.5V input range and 0.5V minimum output make it ideal for low-voltage high-current applications such as ASIC, PLD, and FPGA core power supply. The regulator is stable with a 10uF ceramic output capacitor even at full 5A load, and features logic-level enable shutdown, thermal shutdown, and current limit protection. The WR suffix denotes S-PAK-7 package with tube packaging.","working_principle":"The MIC69502WR operates as a high-current ultra-low-dropout linear regulator. (1) The PNP pass transistor provides low dropout voltage (250mV typical at 5A) by operating with minimal collector-emitter voltage. The output voltage is set by an external resistor divider from the output to the ADJ pin, which is compared with a 0.5V internal reference. The low 0.5V reference enables output voltages as low as 0.5V, critical for sub-1V ASIC and FPGA core supply. (2) The +\/-1% initial accuracy is achieved through laser-trimmed internal references and precision resistors in the error amplifier feedback network. The excellent line regulation (0.5%) and load regulation (0.2%) maintain output voltage stability over input and load variations. (3) The S-PAK-7 package with exposed tab provides low thermal resistance for high-power dissipation. At 5A load with 1V dropout, the device dissipates 5W, requiring adequate PCB copper area for thermal management. The thermal shutdown protects the device when junction temperature exceeds the safe limit. The current limit restricts output current during fault conditions.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>EN<\/td>Enable input (active high)<\/td><\/tr>
      2<\/td>IN<\/td>Input supply (1.65-5.5V)<\/td><\/tr>
      3<\/td>ADJ<\/td>Adjustment feedback (0.5V ref)<\/td><\/tr>
      4<\/td>GND<\/td>Ground<\/td><\/tr>
      5<\/td>OUT<\/td>Regulated output<\/td><\/tr>
      6<\/td>OUT<\/td>Regulated output<\/td><\/tr>
      7<\/td>ERR<\/td>Error flag output (open drain)<\/td><\/tr>
      Tab<\/td>GND<\/td>Thermal tab (connect to GND)<\/td><\/tr><\/table>","application_scenarios":"
      • ASIC core voltage regulator with 0.5V minimum output and 5A capability<\/li>
      • PLD\/FPGA core power supply with 250mV dropout and +\/-1% accuracy<\/li>
      • Linear point-of-load conversion from 3.3V or 5V to low-voltage core<\/li>
      • High-speed post-regulator for switcher output cleanup<\/li>
      • Low-voltage high-current supply with enable and error flag<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        MIC69302WR<\/td>Microchip<\/td>3A version, same family<\/td><\/tr>
        MIC69303WR<\/td>Microchip<\/td>3A, flag output, same pkg<\/td><\/tr>
        LT3021EDH#PBF<\/td>ADI<\/td>500mA, 0.2V dropout, adjustable<\/td><\/tr>
        TPS74401RGWR<\/td>TI<\/td>3A, adjustable, very low dropout<\/td><\/tr>
        NCP59702MNTXG<\/td>onsemi<\/td>2A, low dropout, DFN<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7545","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=7545"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7545\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7545"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}