{"product_id":"xbl-uc3843b-pwm-controller-ic-smd-8-current-mode-power-control-ic-xinbole","title":"XBL-UC3843B+ 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-b433-2b696e304742-16\" data-testid=\"conversation-turn-34\" 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=\"ae1b98e4-e22f-4752-be74-af28297a4bb5\" 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=\"496\"\u003eThe XBL-UC3843B+ by Xinbole is a high-efficiency current-mode PWM controller IC designed for precise power regulation in switch-mode power supplies (SMPS) and DC-DC converter applications. Encased in a compact SMD-8 package, this controller provides stable switching performance and accurate duty cycle control, making it suitable for a wide range of power management designs.\u003c\/p\u003e\n\u003cp data-start=\"498\" data-end=\"858\"\u003eFeaturing a fixed-frequency oscillator and advanced current-mode control architecture, the XBL-UC3843B+ delivers fast transient response, improved line regulation, and enhanced load stability. It includes an internal high-gain error amplifier, precision voltage reference, and built-in undervoltage lockout (UVLO) to ensure reliable startup and safe operation.\u003c\/p\u003e\n\u003cp data-start=\"860\" data-end=\"1126\"\u003eOptimized for low startup current and efficient energy usage, the device helps reduce overall system power consumption. Integrated protection features such as cycle-by-cycle current limiting improve system reliability and safeguard components under fault conditions.\u003c\/p\u003e\n\u003cp data-start=\"1128\" data-end=\"1352\"\u003eWidely used in power adapters, battery chargers, LED drivers, and industrial power supplies, the XBL-UC3843B+ Xinbole PWM controller IC offers a reliable and cost-effective solution for modern power electronics applications.\u003c\/p\u003e\n\u003cp data-start=\"1354\" data-end=\"1373\"\u003e\u003cstrong data-start=\"1354\" data-end=\"1371\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1374\" data-end=\"1646\"\u003e\n\u003cli data-section-id=\"1lmd26r\" data-start=\"1374\" data-end=\"1408\"\u003eCurrent-mode PWM controller IC\u003c\/li\u003e\n\u003cli data-section-id=\"ela9nt\" data-start=\"1409\" data-end=\"1439\"\u003eFixed-frequency oscillator\u003c\/li\u003e\n\u003cli data-section-id=\"cl6e02\" data-start=\"1440\" data-end=\"1470\"\u003eLow startup current design\u003c\/li\u003e\n\u003cli data-section-id=\"1ginqiy\" data-start=\"1471\" data-end=\"1511\"\u003eBuilt-in undervoltage lockout (UVLO)\u003c\/li\u003e\n\u003cli data-section-id=\"19sz0fn\" data-start=\"1512\" data-end=\"1541\"\u003eHigh-gain error amplifier\u003c\/li\u003e\n\u003cli data-section-id=\"yc1tm4\" data-start=\"1542\" data-end=\"1588\"\u003eCycle-by-cycle current limiting protection\u003c\/li\u003e\n\u003cli data-section-id=\"17eml3\" data-start=\"1589\" data-end=\"1620\"\u003ePrecision voltage reference\u003c\/li\u003e\n\u003cli data-section-id=\"1stfdfe\" data-start=\"1621\" data-end=\"1646\"\u003eCompact SMD-8 package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1648\" data-end=\"1667\"\u003e\u003cstrong data-start=\"1648\" data-end=\"1665\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1668\" data-end=\"1915\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"yzntfm\" data-start=\"1668\" data-end=\"1705\"\u003eSwitch-mode power supplies (SMPS)\u003c\/li\u003e\n\u003cli data-section-id=\"1r5671x\" data-start=\"1706\" data-end=\"1736\"\u003eAC-DC and DC-DC converters\u003c\/li\u003e\n\u003cli data-section-id=\"5btb0e\" data-start=\"1737\" data-end=\"1757\"\u003eBattery chargers\u003c\/li\u003e\n\u003cli data-section-id=\"6cw5zv\" data-start=\"1758\" data-end=\"1781\"\u003eLED driver circuits\u003c\/li\u003e\n\u003cli data-section-id=\"k1psmr\" data-start=\"1782\" data-end=\"1800\"\u003ePower adapters\u003c\/li\u003e\n\u003cli data-section-id=\"xygk0x\" data-start=\"1801\" data-end=\"1837\"\u003eIndustrial power control systems\u003c\/li\u003e\n\u003cli data-section-id=\"5g55vk\" data-start=\"1838\" data-end=\"1877\"\u003eEmbedded power management solutions\u003c\/li\u003e\n\u003cli data-section-id=\"1xuypfx\" data-start=\"1878\" data-end=\"1915\" 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 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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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