{"id":7787,"date":"2026-06-27T03:11:53","date_gmt":"2026-06-27T03:11:53","guid":{"rendered":"https:\/\/ic-vendor.com\/mcp1826t-3302e-dc\/"},"modified":"2026-06-28T10:09:49","modified_gmt":"2026-06-28T10:09:49","slug":"mcp1826t-3302e-dc","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/mcp1826t-3302e-dc\/","title":{"rendered":"MCP1826T-3302E\/DC"},"content":{"rendered":"

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

The MCP1826T-3302E\/DC is a 1A, 3.3V fixed-output LDO regulator from Microchip Technology with AEC-Q100 automotive qualification. It features low 250 mV typical dropout voltage, 120 \u00b5A quiescent current, power-good output, and shutdown function in a SOT-223-5 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Output Voltage<\/td>\n3.3 V (fixed)<\/td>\n<\/tr>\n
\u8f93\u51fa\u7535\u6d41<\/td>\n1000 mA<\/td>\n<\/tr>\n
\u8f93\u5165\u7535\u538b\u8303\u56f4<\/td>\n2.3 V to 6.0 V<\/td>\n<\/tr>\n
Dropout Voltage<\/td>\n250 mV typical at 1000 mA<\/td>\n<\/tr>\n
Output Voltage Accuracy<\/td>\n\u00b10.5% (typical), \u00b12% (max)<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n120 \u00b5A typical<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\n0.1 \u00b5A typical<\/td>\n<\/tr>\n
Power-Good Output<\/td>\nYes (fixed delay)<\/td>\n<\/tr>\n
Shutdown (EN) Pin<\/td>\nYes<\/td>\n<\/tr>\n
Output Capacitor<\/td>\n1.0 \u00b5F ceramic (stable)<\/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
\u5305\u88c5<\/td>\nSOT-223-5 (DC)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 1A output current capability<\/li>\n
  • Low dropout: 250 mV typical at 1000 mA<\/li>\n
  • 3.3V fixed output with \u00b10.5% typical accuracy<\/li>\n
  • Stable with 1.0 \u00b5F ceramic output capacitor<\/li>\n
  • Fast transient response<\/li>\n
  • Low quiescent current: 120 \u00b5A typical<\/li>\n
  • Shutdown current: 0.1 \u00b5A typical<\/li>\n
  • Power-good output with fixed delay<\/li>\n
  • Short circuit current limiting and overtemperature protection<\/li>\n
  • AEC-Q100 qualified for automotive applications<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Automotive electronics<\/li>\n
    • High-speed driver chipset power<\/li>\n
    • Networking backplane cards<\/li>\n
    • Notebook computers<\/li>\n
    • Network interface cards<\/li>\n
    • Palmtop and portable devices<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MCP1826T-3302E\/DC is a 1A, 3.3V fixed-output LDO regulator from Microchip Technology with AEC-Q100 automotive qualification. It features low 250 mV typical dropout voltage, 120 \u00b5A quiescent current, power-good output, and shutdown function in a SOT-223-5 package. Key Specifications Output Voltage 3.3 V (fixed) Output Current 1000 mA Input Voltage Range 2.3 V […]<\/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":[],"class_list":["post-7787","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo"],"acf":{"brief_explanation":"1A 3.3V LDO, 250mV dropout, 120\u00b5A Iq, PG output, AEC-Q100, SOT-223-5","date_code":"","package_case":"SOT-223-5 (6.5 x 3.5 x 1.6 mm)","in_stock":12548,"datasheet":"https:\/\/ww1.microchip.com\/downloads\/en\/DeviceDoc\/20002057D.pdf","price":"$0.80 @ 1ku","product_introduction":"The MCP1826T-3302E\/DC is a 1A, 3.3V fixed-output, Low Dropout (LDO) linear regulator from Microchip Technology with AEC-Q100 automotive qualification. It features low dropout voltage (250 mV typical at 1000 mA), high output voltage accuracy (\u00b10.5% typical), and is stable with only a 1.0 \u00b5F ceramic output capacitor. The device includes a shutdown (EN) pin that reduces supply current to 0.1 \u00b5A, and a power-good output with fixed delay for supply monitoring. Short circuit current limiting and overtemperature protection ensure robust operation in demanding environments.","working_principle":"The MCP1826 uses a P-channel MOSFET pass transistor controlled by an error amplifier that compares a divided version of the output voltage to an internal precision bandgap reference. The low RDS(ON) of the PMOS pass transistor achieves 250 mV dropout at full 1A load. The error amplifier provides fast transient response to load steps. The power-good (PG) comparator monitors the output voltage through an internal voltage divider and asserts the open-drain PG output after a fixed delay when the output is within regulation. The enable (EN) pin controls the pass transistor gate; when EN is low, the pass transistor is turned off, reducing supply current to 0.1 \u00b5A. Current limiting and thermal shutdown protect against overload and overheating conditions.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>VIN<\/td>Power<\/td>Input supply voltage (2.3-6.0V)<\/td><\/tr>\n
      2<\/td>GND<\/td>Power<\/td>Ground \/ thermal tab<\/td><\/tr>\n
      3<\/td>EN<\/td>Input<\/td>Enable input (active high)<\/td><\/tr>\n
      4<\/td>PG<\/td>Output<\/td>Power-good open-drain output<\/td><\/tr>\n
      5<\/td>VOUT<\/td>Power<\/td>Regulated 3.3V output<\/td><\/tr>\n
      Tab<\/td>GND<\/td>Power<\/td>Thermal tab (connect to GND plane)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Automotive ECU Power:<\/strong> AEC-Q100 qualification ensures reliable 3.3V regulation in engine and body control modules<\/li>\n
      • Networking Equipment:<\/strong> 1A output with fast transient response powers high-speed driver chipsets on backplane cards<\/li>\n
      • Portable Devices:<\/strong> 120 \u00b5A quiescent current and 0.1 \u00b5A shutdown extend battery life in palmtop computers<\/li>\n
      • Power Sequencing:<\/strong> PG output with fixed delay enables orderly power-up sequencing in multi-rail systems<\/li>\n
      • Notebook Computers:<\/strong> Low dropout at 1A allows efficient 3.3V regulation from 3.6V+ battery rails<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Output<\/th><\/tr>\n
        MCP1826T-5002E\/DC<\/td>Microchip<\/td>5.0V output version for 5V logic systems with same 1A current and low 210mV dropout<\/td>SOT-223-3<\/td>5.0V fixed<\/td><\/tr>\n
        MCP1826T-ADJE\/DC<\/td>Microchip<\/td>Adjustable output version (0.8-5.0V) for custom voltage rails with external resistor divider<\/td>SOT-223-3<\/td>0.8-5.0V adj<\/td><\/tr>\n
        MCP1825T-3302E\/DC<\/td>Microchip<\/td>500mA lower-current version with even lower 150mV dropout for light-load applications<\/td>SOT-223-3<\/td>3.3V fixed<\/td><\/tr>\n
        TLV1117LV33DCYR<\/td>TI<\/td>Equivalent 3.3V\/1A LDO with 300mV dropout and 500uA quiescent current<\/td>SOT-223-3<\/td>3.3V fixed<\/td><\/tr>\n
        NCV8164ASN330T1G<\/td>onsemi<\/td>Automotive-grade 300mA LDO with 70dB PSRR and AEC-Q100 qualification<\/td>TSNP-4<\/td>3.3V fixed<\/td><\/tr>\n
        AP2112K-3.3TRG1<\/td>Diodes Inc<\/td>600mA LDO in SOT-23-5 with 60dB PSRR and enable pin for power sequencing<\/td>SOT-23-5<\/td>3.3V fixed<\/td><\/tr>\n<\/table>\n

        The MCP1826T-3302E\/DC is a 1A low-dropout regulator in SOT-223-3 with 210mV dropout and 0.35%\/V line regulation. For adjustable output, use the -ADJE version. The 5.0V version (-5002E) is pin-compatible. All require only 1uF ceramic output capacitor for stability.<\/p>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/7787","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=7787"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/7787\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=7787"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=7787"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=7787"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7787"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}