{"product_id":"pt4115-89e-led-driver-buck-converter-ic-sot-89-10-pack","title":"PT4115-89E LED Driver Buck Converter IC SOT-89 – 10 Pack","description":"\n\u003ch2\u003ePT4115-89E Constant Current LED Driver IC – 10 Pieces\u003c\/h2\u003e\n\u003cp\u003eGet reliable, high-efficiency LED driving performance with this 10-pack of \u003cstrong\u003ePT4115-89E integrated circuits\u003c\/strong\u003e. Designed in the compact \u003cstrong\u003eSOT-89 package\u003c\/strong\u003e, these buck converter ICs deliver stable constant current output — ideal for engineers, hobbyists, and electronics professionals building or repairing LED lighting circuits, driver boards, and power management systems.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e PT4115 \/ PT4115-89E (4115)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage:\u003c\/strong\u003e SOT-89 surface-mount package\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Buck (step-down) converter with constant current LED drive output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Voltage regulator \/ LED driver integrated circuit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Brand new\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 pieces per order\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-concern chemicals:\u003c\/strong\u003e None\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose the PT4115-89E?\u003c\/h3\u003e\n\u003cp\u003eThe PT4115-89E is a widely used, high-performance LED driver IC trusted in professional and DIY electronics. Its buck converter topology ensures efficient power conversion and consistent current delivery to your LEDs, protecting them from over-current damage and extending their operational lifespan. The SOT-89 footprint makes it easy to integrate into PCB designs of all sizes.\u003c\/p\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLED lighting driver boards\u003c\/li\u003e\n  \u003cli\u003ePortable and battery-powered LED systems\u003c\/li\u003e\n  \u003cli\u003ePCB design and prototyping projects\u003c\/li\u003e\n  \u003cli\u003eElectronics repair and component replacement\u003c\/li\u003e\n  \u003cli\u003eDIY constant current power supplies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e10 × PT4115-89E SOT-89 Integrated Circuit ICs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/electromagnetic-induction-tester-coil-motherboard-fault-detector\"\u003eElectromagnetic Induction Tester – Coil \u0026amp; Circuit Fault Detector\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/air-compressor-pressure-gauge-0-10-0-12-0-25-bar-hydraulic-diy\"\u003eAir Compressor Pressure Gauge 0-10\/0-12\/0-25 Bar | DIY Tool\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/personal-protective-equipment\" target=\"_blank\" rel=\"noopener\"\u003eOSHA on personal protective equipment\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the PT4115-89E IC used for?\u003c\/h4\u003e\n\u003cp\u003eA: The PT4115-89E is a buck (step-down) converter integrated circuit designed to deliver a stable, constant current output for driving LEDs. It is commonly used in LED lighting driver boards, portable lighting systems, and PCB prototyping projects where consistent LED current control is essential.\u003c\/p\u003e\n\u003ch4\u003eQ: What package type is the PT4115-89E?\u003c\/h4\u003e\n\u003cp\u003eA: The PT4115-89E comes in the SOT-89 surface-mount package, which is compact and easy to solder onto standard PCBs, making it suitable for both professional circuit designs and DIY electronics projects.\u003c\/p\u003e\n\u003ch4\u003eQ: How many ICs are included in this listing?\u003c\/h4\u003e\n\u003cp\u003eA: This listing includes 10 pieces of the PT4115-89E SOT-89 integrated circuit, all brand new and ready for immediate use in your electronics projects or repairs.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the PT4115-89E IC used for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The PT4115-89E is a buck (step-down) converter integrated circuit designed to deliver a stable, constant current output for driving LEDs. 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