{"product_id":"xbl-uc3844b-pwm-controller-ic-smd-8-current-mode-power-control-ic-xinbole","title":"XBL-UC3844B+ PWM Controller IC SMD-8 | Current Mode Power Control IC | Xinbole","description":"\u003cdiv class=\"relative basis-auto flex-col -mb-(--composer-overlap-px) pb-(--composer-overlap-px) [--composer-overlap-px:55px] grow flex\"\u003e\n\u003cdiv class=\"flex flex-col text-sm\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-WEB:c75627a1-99da-4f55-b433-2b696e304742-17\" data-testid=\"conversation-turn-36\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"75f3a8c4-52a4-4f62-a4ed-4f919358aef1\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003cp data-start=\"97\" data-end=\"498\"\u003eThe XBL-UC3844B+ by Xinbole is a high-performance current-mode PWM controller IC designed for efficient and reliable power management in switch-mode power supplies (SMPS) and DC-DC converter applications. Available in a compact SMD-8 package, this controller delivers precise duty cycle control and stable switching operation, making it ideal for energy-efficient power designs.\u003c\/p\u003e\n\u003cp data-start=\"500\" data-end=\"826\"\u003eUtilizing advanced current-mode control architecture, the XBL-UC3844B+ ensures fast transient response, improved line and load regulation, and enhanced overall system stability. It features a fixed-frequency oscillator, high-gain error amplifier, and precision voltage reference to support accurate and consistent performance.\u003c\/p\u003e\n\u003cp data-start=\"828\" data-end=\"1109\"\u003eThe IC includes built-in undervoltage lockout (UVLO) for reliable startup and protection, along with cycle-by-cycle current limiting to safeguard against overcurrent conditions. Its optimized low startup current design helps reduce power consumption in standby and operating modes.\u003c\/p\u003e\n\u003cp data-start=\"1111\" data-end=\"1363\"\u003eWidely used in power adapters, battery chargers, LED drivers, industrial power supplies, and embedded power systems, the XBL-UC3844B+ Xinbole PWM controller IC provides a dependable and cost-effective solution for modern power electronics applications.\u003c\/p\u003e\n\u003cp data-start=\"1365\" data-end=\"1384\"\u003e\u003cstrong data-start=\"1365\" data-end=\"1382\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1385\" data-end=\"1657\"\u003e\n\u003cli data-section-id=\"1lmd26r\" data-start=\"1385\" data-end=\"1419\"\u003eCurrent-mode PWM controller IC\u003c\/li\u003e\n\u003cli data-section-id=\"ela9nt\" data-start=\"1420\" data-end=\"1450\"\u003eFixed-frequency oscillator\u003c\/li\u003e\n\u003cli data-section-id=\"cl6e02\" data-start=\"1451\" data-end=\"1481\"\u003eLow startup current design\u003c\/li\u003e\n\u003cli data-section-id=\"1ginqiy\" data-start=\"1482\" data-end=\"1522\"\u003eBuilt-in undervoltage lockout (UVLO)\u003c\/li\u003e\n\u003cli data-section-id=\"19sz0fn\" data-start=\"1523\" data-end=\"1552\"\u003eHigh-gain error amplifier\u003c\/li\u003e\n\u003cli data-section-id=\"yc1tm4\" data-start=\"1553\" data-end=\"1599\"\u003eCycle-by-cycle current limiting protection\u003c\/li\u003e\n\u003cli data-section-id=\"17eml3\" data-start=\"1600\" data-end=\"1631\"\u003ePrecision voltage reference\u003c\/li\u003e\n\u003cli data-section-id=\"1stfdfe\" data-start=\"1632\" data-end=\"1657\"\u003eCompact SMD-8 package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1659\" data-end=\"1678\"\u003e\u003cstrong data-start=\"1659\" data-end=\"1676\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1679\" data-end=\"1926\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"yzntfm\" data-start=\"1679\" data-end=\"1716\"\u003eSwitch-mode power supplies (SMPS)\u003c\/li\u003e\n\u003cli data-section-id=\"1r5671x\" data-start=\"1717\" data-end=\"1747\"\u003eAC-DC and DC-DC converters\u003c\/li\u003e\n\u003cli data-section-id=\"5btb0e\" data-start=\"1748\" data-end=\"1768\"\u003eBattery chargers\u003c\/li\u003e\n\u003cli data-section-id=\"6cw5zv\" data-start=\"1769\" data-end=\"1792\"\u003eLED driver circuits\u003c\/li\u003e\n\u003cli data-section-id=\"k1psmr\" data-start=\"1793\" data-end=\"1811\"\u003ePower adapters\u003c\/li\u003e\n\u003cli data-section-id=\"xygk0x\" data-start=\"1812\" data-end=\"1848\"\u003eIndustrial power control systems\u003c\/li\u003e\n\u003cli data-section-id=\"5g55vk\" data-start=\"1849\" data-end=\"1888\"\u003eEmbedded power management solutions\u003c\/li\u003e\n\u003cli data-section-id=\"1xuypfx\" data-start=\"1889\" data-end=\"1926\" data-is-last-node=\"\"\u003eConsumer electronics power supplies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv id=\"thread-bottom-container\" class=\"sticky bottom-0 z-10 group\/thread-bottom-container relative isolate w-full basis-auto has-data-has-thread-error:pt-2 has-data-has-thread-error:[box-shadow:var(--sharp-edge-bottom-shadow)] md:border-transparent md:pt-0 dark:border-white\/20 md:dark:border-transparent print:hidden content-fade flex flex-col\"\u003e\n\u003cdiv id=\"thread-bottom\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"text-base mx-auto [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 mb-[var(--thread-component-gap,1rem)]\"\u003e\n\u003cdiv class=\"pointer-events-auto relative z-1 flex h-(--composer-container-height,100%) max-w-full flex-(--composer-container-flex,1) flex-col\"\u003e\u003cform class=\"group\/composer w-full\" data-expanded=\"\" data-type=\"unified-composer\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003cdiv class=\"bg-token-bg-primary dark:bg-token-bg-elevated-primary dark-oled:bg-token-bg-primary corner-superellipse\/1.1 cursor-text overflow-clip bg-clip-padding p-2.5 contain-inline-size motion-safe:transition-colors motion-safe:duration-200 motion-safe:ease-in-out grid grid-cols-[auto_1fr_auto] [grid-template-areas:'header_header_header'_'leading_primary_trailing'_'._footer_.'] group-data-expanded\/composer:[grid-template-areas:'header_header_header'_'primary_primary_primary'_'leading_footer_trailing'] shadow-short-composer\" data-composer-surface=\"true\"\u003e\n\u003cdiv data-testid=\"composer-footer-actions\" class=\"-m-1 max-w-full overflow-x-auto p-1 [grid-area:footer] [scrollbar-width:none] group-not-data-expanded\/composer:-mb-12\"\u003e\n\u003cdiv class=\"flex min-w-fit items-center cant-hover:px-1.5 cant-hover:gap-1.5\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"flex items-center gap-2 [grid-area:trailing]\"\u003e\n\u003cdiv class=\"ms-auto flex items-center gap-1.5\"\u003e\n\u003cdiv id=\"_r_2_\" popover=\"hint\" class=\"overflow-visible bg-transparent inset-s-[anchor(center)] inset-e-auto top-[calc(anchor(bottom)+var(--spacing))] bottom-auto h-fit -translate-x-1\/2 [position-try-fallbacks:flip-block] z-50\" role=\"tooltip\"\u003e\u003c\/div\u003e\n\u003cbutton aria-label=\"Start dictation\" type=\"button\" class=\"composer-btn h-9 min-h-9 w-9 min-w-9\" aria-describedby=\"_r_2_\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-label=\"\" class=\"icon\" font-size=\"inherit\"\u003e\u003cuse fill=\"currentColor\" href=\"\/cdn\/assets\/sprites-core-e650466a.svg#29f921\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/button\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"inline-flex\"\u003e\n\u003cdiv\u003e\n\u003cdiv id=\"_r_q7_\" popover=\"hint\" class=\"overflow-visible bg-transparent inset-s-[anchor(center)] inset-e-auto top-[calc(anchor(bottom)+var(--spacing))] bottom-auto h-fit -translate-x-1\/2 [position-try-fallbacks:flip-block] z-50\" role=\"tooltip\"\u003e\u003c\/div\u003e\n\u003cbutton aria-describedby=\"_r_q7_\" type=\"button\" aria-label=\"Start Voice\" class=\"composer-submit-button-color text-submit-btn-text keyboard-focused:focus-ring relative flex h-9 w-9 items-center justify-center rounded-full transition-colors hover:opacity-70 disabled:text-[#f4f4f4] disabled:opacity-30\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" class=\"h-5 w-5\"\u003e\u003cuse fill=\"currentColor\" href=\"\/cdn\/assets\/sprites-core-e650466a.svg#f8aa74\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/button\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/form\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"xinbole","offers":[{"title":"Default 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