{"id":6261,"date":"2026-06-12T10:18:34","date_gmt":"2026-06-12T10:18:34","guid":{"rendered":"https:\/\/materialparts.com\/mt3608\/"},"modified":"2026-06-12T10:18:34","modified_gmt":"2026-06-12T10:18:34","slug":"mt3608","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/mt3608\/","title":{"rendered":"MT3608"},"content":{"rendered":"

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

The MT3608 from Aerosemi is a 2A step-up (boost) DC-DC converter with a fixed 1.2MHz switching frequency. Operating from 2V to 24V input, it can generate output voltages up to 28V with internal 1.2A switch current limit in a compact SOT-23-6 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n2V to 24V<\/td>\n<\/tr>\n
Output Voltage Range<\/td>\nVIN to 28V (adjustable)<\/td>\n<\/tr>\n
Switch Current Limit<\/td>\n1.2A (internal MOSFET)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\nUp to 2A (depends on VIN\/VOUT ratio)<\/td>\n<\/tr>\n
\u5f00\u5173\u9891\u7387<\/td>\n1.2 MHz (fixed)<\/td>\n<\/tr>\n
Reference Voltage<\/td>\n0.6V<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\n<1 uA<\/td>\n<\/tr>\n
Efficiency<\/td>\nUp to 93%<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-6<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Internal 1.2A N-channel MOSFET switch<\/li>\n
  • Fixed 1.2MHz frequency allows small external components<\/li>\n
  • Adjustable output voltage via external resistor divider<\/li>\n
  • Internal soft-start and current mode control<\/li>\n
  • Under-voltage lockout and over-temperature protection<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Battery-powered boost converters<\/li>\n
    • OLED and LCD bias supplies<\/li>\n
    • LED string drivers<\/li>\n
    • USB power bank boost circuits<\/li>\n
    • Solar-powered energy harvesting<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MT3608 from Aerosemi is a 2A step-up (boost) DC-DC converter with a fixed 1.2MHz switching frequency. Operating from 2V to 24V input, it can generate output voltages up to 28V with internal 1.2A switch current limit in a compact SOT-23-6 package. Key Specifications Input Voltage Range 2V to 24V Output Voltage Range […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[31,13],"tags":[],"chip_brand":[282],"class_list":["post-6261","post","type-post","status-publish","format-standard","hentry","category-dc-dc-converters","category-integrated-circuits-ics","chip_brand-aerosemi"],"acf":{"brief_explanation":"2A boost converter, 2-24V in, up to 28V out, 1.2MHz, SOT-23-6, popular DIY boost module","date_code":"","package_case":"SOT-23-6 (2.9 x 2.8 x 1.5mm)","in_stock":14957,"datasheet":"https:\/\/www.olimex.com\/Products\/Breadboarding\/BB-PWR-3608\/resources\/MT3608.pdf","price":"$0.15 @ 1ku","product_introduction":"The MT3608 from Aerosemi is a compact and cost-effective step-up (boost) DC-DC converter with an integrated 1.2A N-channel MOSFET. Operating from 2V to 24V input, it can boost the voltage up to 28V output using a fixed 1.2MHz switching frequency. The current-mode control architecture provides fast transient response and stable operation. With efficiency up to 93% and a shutdown current below 1uA, it is widely used in battery-powered boost applications, USB power banks, and bias supply generation for displays.","working_principle":"The MT3608 employs a current-mode boost converter architecture. **Power Stage**: The internal N-channel MOSFET switches at 1.2MHz, storing energy in an external inductor during the on-time and releasing it to the output through an external Schottky diode during the off-time. **Control Loop**: Current-mode control compares the peak inductor current against the error amplifier output. This architecture provides inherent cycle-by-cycle current limiting and simplifies loop compensation. The output voltage is set by an external resistor divider connected to the FB pin (reference 0.6V). **Soft-Start**: Internal soft-start gradually increases the current limit during startup, preventing excessive inrush current that could damage the input supply or cause output overshoot. **Protection**: Under-voltage lockout (UVLO) prevents operation when input voltage drops below approximately 1.6V. Thermal shutdown protects the device when junction temperature exceeds safe limits.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>LX<\/td>Switching node (inductor connection, internal MOSFET drain)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td><\/tr>
      3<\/td>EN<\/td>Enable input (high=on, low=shutdown)<\/td><\/tr>
      4<\/td>FB<\/td>Feedback voltage input (reference 0.6V)<\/td><\/tr>
      5<\/td>VIN<\/td>Input supply voltage (2V to 24V)<\/td><\/tr>
      6<\/td>LX<\/td>Switching node (inductor connection, internal MOSFET drain)<\/td><\/tr><\/table>","application_scenarios":"
      • Power Banks: Boosting single-cell Li-ion (3.7V) to 5V USB output for portable charging<\/li>
      • Display Bias: Generating 12V-15V bias voltage for OLED and TFT-LCD modules from 3.3V\/5V<\/li>
      • LED Drivers: Powering series LED strings from low-voltage battery sources<\/li>
      • Solar Harvesting: Boosting low-voltage solar panel output to usable voltage levels<\/li>
      • Arduino Projects: 5V to 12V boost for motor drivers and relay modules from USB power<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        MT3608 with module<\/td>Aerosemi<\/td>Pre-assembled boost module with potentiometer<\/td><\/tr>
        XL6009E1<\/td>XLSEMI<\/td>4A, 35V output, 400kHz, TO-263<\/td><\/tr>
        LM2733XMF<\/td>TI<\/td>1A, 2.7-14V in, 1.6MHz, SOT-23-5<\/td><\/tr>
        TPS61021ADSGR<\/td>TI<\/td>3A, 0.5-5.5V in, 2.5MHz, WQFN<\/td><\/tr>
        SX1308<\/td>Suosemi<\/td>2A, 2-24V in, 28V out, SOT-23-6, pin-compatible<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6261","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=6261"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6261\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6261"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}