The MCP1826ST-3302E\/DB from Microchip is a 1A, 3.3V fixed-output ultra-low-noise LDO regulator with power-good output in SOT-223-5 package for noise-sensitive RF and analog circuits.<\/p>\n
| Paquete<\/td>\n | SOT-223-5<\/td>\n<\/tr>\n<\/table>\nCaracter\u00edsticas<\/h2>\nAplicaciones<\/h2>\nProduct Overview The MCP1826ST-3302E\/DB from Microchip is a 1A, 3.3V fixed-output ultra-low-noise LDO regulator with power-good output in SOT-223-5 package for noise-sensitive RF and analog circuits. Key Specifications Package SOT-223-5 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":[13,32],"tags":[],"chip_brand":[134],"class_list":["post-5552","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-low-dropout-regulators-ldo","chip_brand-microchip"],"acf":{"brief_explanation":"1A LDO, 3.3V fixed, ultra-low noise, SOT-223-5","date_code":"","package_case":"SOT-223-5","in_stock":2520,"datasheet":"https:\/\/www.microchip.com\/en-us\/product\/MCP1826","price":"$0.85 @ 1ku","product_introduction":"The MCP1826ST-3302E\/DB from Microchip is a 1A, 3.3V fixed-output ultra-low-noise LDO regulator with power-good output in SOT-223-5 package for noise-sensitive RF and analog circuits.","working_principle":"The MCP1826ST-3302E\/DB is a 1A LDO (Low Dropout Regulator) from Microchip in SOT-223-5, providing a fixed 3.3V output with 210mV dropout at 1A. The LDO uses a P-channel MOSFET pass transistor (vs. PNP on older LDOs), which eliminates the base current waste: the ground pin current is only 220uA at 1A load, compared to 5-10mA on PNP-based LDOs. This makes the MCP1826 ideal for battery-powered applications where quiescent current matters. The dropout voltage is 210mV at 1A and 20mV at 100mA, allowing operation with VIN as low as 3.51V while maintaining 3.3V output at full load. The output is stable with ceramic output capacitors (1-10uF X5R\/X7R), unlike older LDOs that required tantalum capacitors with specific ESR ranges. The PSRR (Power Supply Rejection Ratio) is 75dB at 1kHz, attenuating input ripple. The output noise is 40uVrms from 10Hz-100kHz. The enable pin (EN) features an internal pull-up, so the device operates if EN is left floating. Pulling EN LOW enters shutdown mode with 0.1uA supply current. The short-circuit current limit is 1.5A typical, and the thermal shutdown activates at 150C. The -3302 suffix specifies 3.3V output and SOT-223-5 package. The \/DB suffix specifies SOT-223-5, tape-and-reel. The SOT-223-5 package provides 62C\/W thermal resistance, allowing 800mW dissipation at 25C ambient with minimal PCB copper. Applications include 3.3V MCU power, USB-powered devices, and post-regulation after switching converters.","pin_description":"
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