{"product_id":"pt4115-led-driver-ic-30v-1-2a-step-down-constant-current-sot89-power-ic-xinbole","title":"PT4115 LED Driver IC 30V 1.2A Step-Down Constant Current | SOT89 Power 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:f478a70c-78d3-4c82-a28e-66aa29b00a3a-32\" data-testid=\"conversation-turn-66\" 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=\"d70cea2f-fe43-49c6-900b-09ac30009680\" dir=\"auto\" data-message-model-slug=\"gpt-5-3-mini\" 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=\"104\" data-end=\"590\"\u003eThe PT4115 from Xinbole is a high-efficiency step-down (buck) constant current LED driver IC designed for reliable and energy-efficient LED lighting applications. Operating over a wide input voltage range up to 30V, it delivers up to 1.2A output current, making it ideal for driving high-power LEDs in compact and efficient lighting systems. Its advanced switching regulator topology ensures stable current regulation with excellent efficiency and low power loss.\u003c\/p\u003e\n\u003cp data-start=\"592\" data-end=\"1082\"\u003eBuilt with high-speed PWM control technology, the PT4115 achieves fast switching performance and precise current control, ensuring consistent LED brightness and extended lifespan. Its low quiescent current and high conversion efficiency significantly reduce heat generation, improving thermal performance and overall system reliability. Compared to lower voltage LED driver solutions, the PT4115 offers greater input voltage flexibility and improved robustness for diverse lighting designs.\u003c\/p\u003e\n\u003cp data-start=\"1084\" data-end=\"1387\"\u003eThe device features built-in protection functions including thermal shutdown and current limiting, ensuring safe and stable operation under varying load conditions. Its compact SOT89 package supports efficient thermal dissipation while enabling space-saving PCB designs for modern lighting applications.\u003c\/p\u003e\n\u003cp data-start=\"1389\" data-end=\"1574\"\u003eWith its combination of high efficiency, wide voltage range, and reliable performance, the PT4115 is widely used in LED lighting, automotive lighting, and portable illumination systems.\u003c\/p\u003e\n\u003cp data-start=\"1576\" data-end=\"1595\"\u003e\u003cstrong data-start=\"1576\" data-end=\"1593\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1596\" data-end=\"1863\"\u003e\n\u003cli data-section-id=\"uzeuw2\" data-start=\"1596\" data-end=\"1647\"\u003e30V input step-down constant current LED driver\u003c\/li\u003e\n\u003cli data-section-id=\"19howws\" data-start=\"1648\" data-end=\"1688\"\u003eUp to 1.2A output current capability\u003c\/li\u003e\n\u003cli data-section-id=\"efu38j\" data-start=\"1689\" data-end=\"1730\"\u003eHigh-efficiency PWM switching control\u003c\/li\u003e\n\u003cli data-section-id=\"6wn17z\" data-start=\"1731\" data-end=\"1774\"\u003eLow quiescent current for energy saving\u003c\/li\u003e\n\u003cli data-section-id=\"1ot5iy6\" data-start=\"1775\" data-end=\"1818\"\u003eBuilt-in thermal and current protection\u003c\/li\u003e\n\u003cli data-section-id=\"11yiy3i\" data-start=\"1819\" data-end=\"1863\"\u003eSOT89 package for compact thermal design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1865\" data-end=\"1884\"\u003e\u003cstrong data-start=\"1865\" data-end=\"1882\"\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1885\" data-end=\"2079\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"wklx9p\" data-start=\"1885\" data-end=\"1909\"\u003eLED lighting systems\u003c\/li\u003e\n\u003cli data-section-id=\"15cv6bv\" data-start=\"1910\" data-end=\"1936\"\u003eAutomotive LED drivers\u003c\/li\u003e\n\u003cli data-section-id=\"dhrtjn\" data-start=\"1937\" data-end=\"1974\"\u003eFlashlights and portable lighting\u003c\/li\u003e\n\u003cli data-section-id=\"1e38nro\" data-start=\"1975\" data-end=\"2004\"\u003eBacklighting applications\u003c\/li\u003e\n\u003cli data-section-id=\"gjp2ds\" data-start=\"2005\" data-end=\"2046\"\u003eDecorative and architectural lighting\u003c\/li\u003e\n\u003cli data-section-id=\"lm7ryv\" data-start=\"2047\" data-end=\"2079\" data-is-last-node=\"\"\u003eIndustrial LED power solutions\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 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gap-1.5\"\u003e\n\u003cdiv id=\"_r_9_\" popover=\"hint\" role=\"tooltip\" class=\"fixed 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] overflow-visible bg-transparent z-50\"\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_9_\"\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-6d2147a0.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_24e_\" popover=\"hint\" role=\"tooltip\" class=\"fixed inset-s-[anchor(center)] inset-e-auto top-[calc(anchor(bottom)+var(--spacing))] bottom-auto h-fit -translate-x-1\/2 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