{"id":5553,"date":"2026-06-11T02:51:58","date_gmt":"2026-06-11T02:51:58","guid":{"rendered":"https:\/\/materialparts.com\/ltc3676eujtrpbf\/"},"modified":"2026-06-12T09:10:41","modified_gmt":"2026-06-12T09:10:41","slug":"ltc3676eujtrpbf","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ltc3676eujtrpbf\/","title":{"rendered":"LTC3676EUJ#TRPBF"},"content":{"rendered":"

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

The LTC3676EUJ#TRPBF from Analog Devices is a 4-channel PMIC with two 2.5A bucks and two 1A bucks, designed to power i.MX processors in portable devices with I2C control and power sequencing.<\/p>\n

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\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nQFN-40 (6x6mm)<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • See datasheet for complete specifications<\/li>\n
  • Industry-standard package<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial control<\/li>\n
    • Consumer electronics<\/li>\n
    • Communication equipment<\/li>\n
    • Automotive electronics<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LTC3676EUJ#TRPBF from Analog Devices is a 4-channel PMIC with two 2.5A bucks and two 1A bucks, designed to power i.MX processors in portable devices with I2C control and power sequencing. Key Specifications Package QFN-40 (6x6mm) Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,29],"tags":[],"chip_brand":[165],"class_list":["post-5553","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-power-management-ics-pmic","chip_brand-adi"],"acf":{"brief_explanation":"4-channel DC-DC PMIC for i.MX, 2x buck 2.5A, 2x buck 1A, QFN-40","date_code":"","package_case":"QFN-40 (6x6mm)","in_stock":2488,"datasheet":"https:\/\/www.analog.com\/en\/products\/ltc3676.html","price":"$7.80 @ 1ku","product_introduction":"The LTC3676EUJ#TRPBF from Analog Devices is a 4-channel PMIC with two 2.5A bucks and two 1A bucks, designed to power i.MX processors in portable devices with I2C control and power sequencing.","working_principle":"The LTC3676EUJ#TRPBF is a 4-channel DC-DC PMIC (Power Management IC) from Analog Devices in QFN-40 (6x6mm), designed to power Freescale\/NXP i.MX application processors. It integrates: two 2.5A step-down buck regulators (Buck1, Buck2) for core and DDR rails; two 1A step-down buck regulators (Buck3, Buck4) for I\/O and peripheral rails; and four 300mA LDO regulators (LDO1-4) for low-noise analog and PLL supplies. Each buck regulator uses constant-on-time (COT) control with valley current mode, providing fast transient response (typical 5us from 10% to 90% load step) essential for processor core rails. The switching frequency is 2.25MHz, allowing small 0.47-2.2uH inductors in 0805 or 1008 footprint. All regulators are programmable via I2C (400kHz), allowing dynamic voltage scaling (DVS): the I2C interface can adjust output voltages in 25mV steps during operation, enabling DVFS (Dynamic Voltage and Frequency Scaling) for power savings. The WAKE pin initiates power-up sequencing: a LOW-to-HIGH transition starts the pre-programmed power-up sequence (Buck1 first, then Buck2, then LDOs). The PGOOD pin indicates all rails are within regulation. Each regulator has independent enable pins (EN1-4) for manual control. The device supports multiple operating states: RUN (all rails active), STANDBY (LDOs only), and SHUTDOWN (all off, 10uA Iq). The I2C registers store configuration, fault status, and voltage settings. The -EUJ suffix specifies QFN-40, and #TRPBF specifies tape-and-reel, lead-free.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1-4<\/td>SW1\/BOOT1\/PVIN1\/EN1<\/td>I\/O\/Power<\/td>Buck1 switch node \/ bootstrap \/ input \/ enable<\/td><\/tr>
      5-8<\/td>SW2\/BOOT2\/PVIN2\/EN2<\/td>I\/O\/Power<\/td>Buck2 switch node \/ bootstrap \/ input \/ enable<\/td><\/tr>
      9-12<\/td>SW3\/BOOT3\/PVIN3\/EN3<\/td>I\/O\/Power<\/td>Buck3 switch node \/ bootstrap \/ input \/ enable<\/td><\/tr>
      13-16<\/td>SW4\/BOOT4\/PVIN4\/EN4<\/td>I\/O\/Power<\/td>Buck4 switch node \/ bootstrap \/ input \/ enable<\/td><\/tr>
      17-20<\/td>LDO1\/LDO2\/LDO3\/LDO4<\/td>Output<\/td>Four linear regulator outputs (1.2V-3.3V)<\/td><\/tr>
      21-24<\/td>VINA\/SCL\/SDA\/WAKE<\/td>Power\/I\/O<\/td>Analog supply \/ I2C clock \/ I2C data \/ wake input<\/td><\/tr>
      25-40<\/td>PGOOD\/VFB1-4\/GND\/Exposed Pad<\/td>Output\/Power<\/td>Power good \/ feedback \/ ground \/ thermal pad<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial control<\/li>
    • Consumer electronics<\/li>
    • Communication equipment<\/li>
    • Automotive electronics<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Analog Devices<\/td>LTC3676EUJ#TRPBF<\/td>QFN-40<\/td>Same device, ADI brand<\/td><\/tr>
      Analog Devices<\/td>LTC3675EUJ#PBF<\/td>QFN-40<\/td>3 buck + 3 LDO version, slightly fewer rails<\/td><\/tr>
      Texas Instruments<\/td>TPS65218D0<\/td>QFN-48<\/td>6-rail PMIC for Sitara, I2C controlled<\/td><\/tr>
      Richtek<\/td>RT5028AGQW<\/td>QFN-40<\/td>4 buck + 4 LDO PMIC for tablet, similar<\/td><\/tr>
      NXP<\/td>PF0100F2AEP<\/td>BGA-56<\/td>Multi-rail PMIC for i.MX, similar complexity<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5553","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=5553"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5553\/revisions"}],"predecessor-version":[{"id":6137,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5553\/revisions\/6137"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5553"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5553"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5553"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5553"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}