{"product_id":"lm2596s-adj-step-down-switching-regulator-ic-to-263-surface-mount-package","title":"LM2596S-ADJ (Step-Down Switching Regulator IC - TO-263 Surface Mount Package)","description":"\u003cp data-path-to-node=\"5\"\u003eIf you have ever tried to drop a 12V battery down to 5V to power an Arduino using a classic LM7805 linear regulator, you know they get dangerously hot. They work by burning off the excess voltage as pure heat. The \u003cb data-path-to-node=\"5\" data-index-in-node=\"214\"\u003eLM2596S-ADJ\u003c\/b\u003e solves this massive inefficiency. It is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. Instead of burning off the difference, it rapidly switches on and off at 150kHz, efficiently converting the higher voltage into usable current.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003eThis specific chip is the exact silicon heart found on the famous blue \"LM2596 Buck Converter\" modules used by makers worldwide. By buying the bare IC in its robust TO-263 (D2PAK) surface-mount package, you can integrate this highly efficient power supply directly onto your custom printed circuit boards. It requires a minimum number of external components—just an inductor, a catch diode (like an SS34 or 1N5822), and a few capacitors—making the design of high-current, custom power supplies incredibly straightforward. Because this is the \"-ADJ\" (Adjustable) version, you can perfectly tune the output voltage from 1.23V all the way up to 37V using two external resistors.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eKey Features \u0026amp; Functional Advantages:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eHigh Efficiency Switching:\u003c\/b\u003e Operates as a buck converter, running vastly cooler and more efficiently than standard linear regulators, especially when the voltage drop is significant.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eMassive Current Capacity:\u003c\/b\u003e Capable of driving a massive 3 Amp continuous load with excellent line and load regulation, providing plenty of power for thirsty microcontrollers, displays, and servos.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eFully Adjustable Output:\u003c\/b\u003e Requires just two external resistors (or a single potentiometer) to tune the output voltage down to a highly precise 1.23V, no matter what the input voltage is doing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eBuilt-in Protection:\u003c\/b\u003e Features integrated thermal shutdown circuitry and highly reliable current-limiting, preventing the chip from destroying itself under heavy loads or short circuits.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003e150 kHz Internal Oscillator:\u003c\/b\u003e Because it switches at a relatively high frequency, you can use significantly smaller, cheaper external filter capacitors and inductors compared to older, slower switching regulators.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003ePerfect For:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"10\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,0,0\"\u003e\u003cb data-path-to-node=\"10,0,0\" data-index-in-node=\"0\"\u003eCustom PCB Power Supplies:\u003c\/b\u003e The standard silicon choice for integrating reliable 5V or 3.3V power rails directly onto your custom robotics or IoT motherboards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,1,0\"\u003e\u003cb data-path-to-node=\"10,1,0\" data-index-in-node=\"0\"\u003eBattery Step-Down:\u003c\/b\u003e Excellent for taking 12V or 24V from lead-acid batteries or large LiPo packs and stepping it down to run sensitive microcontrollers.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,2,0\"\u003e\u003cb data-path-to-node=\"10,2,0\" data-index-in-node=\"0\"\u003eSolar Power Systems:\u003c\/b\u003e Frequently used in DIY solar setups to regulate fluctuating panel voltages into a steady, usable output for charging devices.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"10,3,0\"\u003e\u003cb data-path-to-node=\"10,3,0\" data-index-in-node=\"0\"\u003eHigh-Power LED Drivers:\u003c\/b\u003e A highly efficient way to build constant-voltage driver circuits for high-brightness 3W and 10W LEDs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"11\"\u003e\u003cb data-path-to-node=\"11\" data-index-in-node=\"0\"\u003eTechnical Specifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"12\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,0,0\"\u003e\u003cb data-path-to-node=\"12,0,0\" data-index-in-node=\"0\"\u003eRegulator Type:\u003c\/b\u003e Step-Down (Buck) Switching Regulator\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,1,0\"\u003e\u003cb data-path-to-node=\"12,1,0\" data-index-in-node=\"0\"\u003eOutput Type:\u003c\/b\u003e Adjustable (-ADJ)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,2,0\"\u003e\u003cb data-path-to-node=\"12,2,0\" data-index-in-node=\"0\"\u003eInput Voltage Range:\u003c\/b\u003e 4.5V to 40V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,3,0\"\u003e\u003cb data-path-to-node=\"12,3,0\" data-index-in-node=\"0\"\u003eAdjustable Output Voltage:\u003c\/b\u003e 1.23V to 37V DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,4,0\"\u003e\u003cb data-path-to-node=\"12,4,0\" data-index-in-node=\"0\"\u003eMaximum Output Current:\u003c\/b\u003e 3A (Note: Heavy continuous loads above 2A will require the PCB's copper plane to act as a heatsink).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,5,0\"\u003e\u003cb data-path-to-node=\"12,5,0\" data-index-in-node=\"0\"\u003eSwitching Frequency:\u003c\/b\u003e 150 kHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,6,0\"\u003e\u003cb data-path-to-node=\"12,6,0\" data-index-in-node=\"0\"\u003eProtection:\u003c\/b\u003e Thermal Shutdown \u0026amp; Current Limiting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,7,0\"\u003e\u003cb data-path-to-node=\"12,7,0\" data-index-in-node=\"0\"\u003ePackage \/ Case:\u003c\/b\u003e TO-263-5 (D2PAK - 5 Leads + Tab)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"12,8,0\"\u003e\u003cb data-path-to-node=\"12,8,0\" data-index-in-node=\"0\"\u003eMounting Type:\u003c\/b\u003e Surface Mount (SMD\/SMT)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42865737564231,"sku":null,"price":50.0,"currency_code":"KES","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/s-l1600_3.webp?v=1781084318","url":"https:\/\/www.ktechnics.com\/products\/lm2596s-adj-step-down-switching-regulator-ic-to-263-surface-mount-package","provider":"K-TECHNICS","version":"1.0","type":"link"}