{"id":6765,"date":"2026-06-21T10:28:14","date_gmt":"2026-06-21T10:28:14","guid":{"rendered":"https:\/\/materialparts.com\/mcp1700t-3302e-tt\/"},"modified":"2026-06-21T10:28:14","modified_gmt":"2026-06-21T10:28:14","slug":"mcp1700t-3302e-tt","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/mcp1700t-3302e-tt\/","title":{"rendered":"MCP1700T-3302E\/TT"},"content":{"rendered":"

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

The MCP1700T-3302E\/TT from Microchip Technology is a 250 mA CMOS low-dropout linear regulator with 3.3 V fixed output, 1.6 uA quiescent current, 178 mV dropout, and 2.3 V to 6.0 V input range in a SOT-23-3 package. AEC-Q100 qualified.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nLow-Dropout Linear Regulator (LDO)<\/td>\n<\/tr>\n
Output Voltage<\/td>\n3.3 V (Fixed)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n250 mA<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b<\/td>\n2.3 V to 6.0 V<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n178 mV typical @ 250 mA<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n1.6 uA (typical)<\/td>\n<\/tr>\n
Output Accuracy<\/td>\n\u00b10.4% typical (\u00b12% max)<\/td>\n<\/tr>\n
Output Capacitor<\/td>\n1 uF ceramic (stable)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOT-23-3<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +125\u00b0C<\/td>\n<\/tr>\n
\u8d44\u683c<\/td>\nAEC-Q100<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Ultra-low 1.6 uA quiescent current for extended battery life<\/li>\n
  • 178 mV low dropout at full load<\/li>\n
  • \u00b10.4% typical output voltage accuracy<\/li>\n
  • Stable with only 1 uF ceramic output capacitor<\/li>\n
  • Short-circuit and over-temperature protection<\/li>\n
  • AEC-Q100 automotive qualified<\/li>\n
  • Pin-compatible upgrade for bipolar regulators<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Battery-powered devices and instruments<\/li>\n
    • Smoke and CO2 detectors<\/li>\n
    • Microcontroller and sensor power supply<\/li>\n
    • Portable medical devices<\/li>\n
    • Smart battery packs and PDAs<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MCP1700T-3302E\/TT from Microchip Technology is a 250 mA CMOS low-dropout linear regulator with 3.3 V fixed output, 1.6 uA quiescent current, 178 mV dropout, and 2.3 V to 6.0 V input range in a SOT-23-3 package. AEC-Q100 qualified. Key Specifications Type Low-Dropout Linear Regulator (LDO) Output Voltage 3.3 V (Fixed) Output Current […]<\/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-6765","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-microchip"],"acf":{"brief_explanation":"250mA LDO, 3.3V Fixed, 1.6uA IQ, 178mV VDO, AEC-Q100, SOT-23-3","date_code":"","package_case":"SOT-23-3 (2.9 x 1.3 x 0.95 mm)","in_stock":11432,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/20001826D.pdf","price":"$0.51 @ 1ku","product_introduction":"The MCP1700T-3302E\/TT from Microchip Technology is a 250 mA CMOS low-dropout positive voltage regulator with a fixed 3.3 V output. Its extremely low 1.6 uA typical quiescent current makes it ideal for battery-powered applications where standby time is critical. The 178 mV typical dropout voltage at 250 mA allows operation with minimal headroom between input and output. The device is stable with only a 1 uF ceramic output capacitor, simplifying PCB design. AEC-Q100 qualification ensures automotive-grade reliability. The wide 2.3 V to 6.0 V input range supports single-cell Li-ion and multi-cell alkaline battery configurations.","working_principle":"The MCP1700T-3302E\/TT uses a P-channel MOSFET pass element controlled by an error amplifier that compares the divided output voltage against an internal bandgap reference. The P-channel MOSFET allows low dropout operation because no gate drive voltage above VIN is needed. The error amplifier drives the gate to regulate the output at 3.3 V. The 1.6 uA quiescent current is achieved by biasing the internal circuitry at very low current levels. The output voltage is set by an internal trimmed resistor divider, providing \u00b10.4% typical accuracy. Short-circuit protection limits the output current when VOUT drops below the regulation threshold. Thermal shutdown disables the output when the die temperature exceeds approximately 145\u00b0C. The device requires only 1 uF output capacitance for stability due to the internal compensation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN<\/td>Power<\/td>Input supply (2.3-6.0V)<\/td><\/tr>
      2<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      3<\/td>VOUT<\/td>Output<\/td>Regulated 3.3V output<\/td><\/tr><\/table>","application_scenarios":"
      • MCU and sensor 3.3V power rail from Li-ion battery<\/li>
      • Smoke detector and CO2 sensor long-life standby power<\/li>
      • Portable medical instrument voltage regulation<\/li>
      • Smart battery pack management power supply<\/li>
      • PDA and digital camera battery-powered regulation<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Microchip<\/td>MCP1700T-5002E\/TT<\/td>SOT-23-3<\/td>5.0V output variant<\/td><\/tr>
        Microchip<\/td>MCP1703AT-3302E\/MB<\/td>SOT-89-3<\/td>Higher current, 250mA<\/td><\/tr>
        Texas Instruments<\/td>TLV70033DDCR<\/td>SOT-23-5<\/td>3.3V, 300mA, EN pin<\/td><\/tr>
        onsemi<\/td>NCP551SN33T1G<\/td>TSOP-5<\/td>3.3V, 150mA, low IQ<\/td><\/tr>
        Richtek<\/td>RT9193-33GB<\/td>SOT-23-3<\/td>3.3V, 300mA, low noise<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6765","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=6765"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6765\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6765"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}