{"product_id":"lm317t-1-34vdc-adjustable-step-down-linear-regulator-module","title":"5-35VDC or 5-22VAC to 1-34VDC LM317T Adjustable Step Down Linear Regulator Module","description":"\u003ch2\u003e📋 Overview\u003c\/h2\u003e\n\u003cp\u003eThe LM317T adjustable voltage regulator module converts DC input from 5V to 35V, or AC input from 5V to 22V, into a clean, regulated DC output continuously adjustable from approximately 1V to 34V using the onboard multi-turn potentiometer. An integrated rectifier bridge allows both AC and DC input sources, and a large 1000µF filter capacitor reduces ripple, noise, and interference from common switching power supplies.\u003c\/p\u003e\n\u003cp\u003eThis module is ideal for repurposing surplus computer power supplies, wall adapters, and laptop chargers as a clean, adjustable DC power source for electronics, radios, and other equipment. For example, a 19V laptop power supply can provide a regulated, adjustable output from a few volts up to approximately 16V.\u003c\/p\u003e\n\u003ch2\u003e🚀 Getting Started\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eConnect your DC or AC power source to the input screw terminals (observe polarity for DC input).\u003c\/li\u003e\n\u003cli\u003eConnect your load or device to the output screw terminals.\u003c\/li\u003e\n\u003cli\u003eApply power — the onboard LED will illuminate to confirm input voltage is present.\u003c\/li\u003e\n\u003cli\u003eAdjust the multi-turn potentiometer to set your desired output voltage. Use a multimeter on the output terminals to verify the voltage before connecting sensitive equipment.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003e⭐ Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Input Range:\u003c\/strong\u003e Accepts 5V–35V DC or 5V–22V AC input, compatible with a wide variety of power sources\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Output:\u003c\/strong\u003e Continuously variable output from approximately 1V to 34V DC via onboard multi-turn potentiometer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC and DC Input:\u003c\/strong\u003e Built-in rectifier bridge allows direct connection of AC power sources without an external rectifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Noise Output:\u003c\/strong\u003e Large 1000µF input filter capacitor reduces ripple, hash noise, and interference from switching power supplies\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Indicator:\u003c\/strong\u003e PCB-mounted LED illuminates when input voltage is applied\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Connections:\u003c\/strong\u003e Screw terminal connectors for both input and output — no soldering required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Small form factor with integrated heatsink for thermal management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📊 Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRegulator IC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLM317T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage (DC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V – 35V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage (AC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5V – 22V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1V – 34V DC (continuously adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e600mA (input-output differential ≤10V); 400mA (differential \u0026gt;10V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput\/Output Connectors\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eScrew terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Adjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOnboard multi-turn potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Filter Capacitor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000µF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRectifier\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOnboard bridge rectifier (AC\/DC input)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePCB-mounted LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0°C to 100°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 50 × 25 × 25 mm (2.0 x 1.0 x 1.0 inches) L × W × H (28mm \/ 1.1 in. width including heatsink)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e⚠️ Important Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThis is a \u003cstrong\u003estep-down linear regulator\u003c\/strong\u003e — the input voltage must be at least approximately 2.5V greater than the desired output voltage.\u003c\/li\u003e\n\u003cli\u003eWhen the difference between input and output voltage exceeds 10V, keep output current below 400mA to prevent overheating.\u003c\/li\u003e\n\u003cli\u003eAt higher ambient temperatures or higher output currents, active cooling such as forced airflow may be required.\u003c\/li\u003e\n\u003cli\u003eAlways verify the output voltage with a multimeter before connecting sensitive equipment.\u003c\/li\u003e\n\u003cli\u003eDo not exceed the maximum input voltage ratings: 35V DC or 22V AC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📦 What's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x LM317T AC\/DC to DC Adjustable Linear Voltage Regulator Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📄 Documentation \u0026amp; Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/envistiamall.com\/blogs\/learn\/lm317t-ac-dc-linear-regulator-module-user-guide\" title=\"LM317T 5-35VDC \/ 5-22VAC to 1-34VDC Step-Down Linear Regulator Module User Guide\" rel=\"noopener\" target=\"_blank\"\u003eLM317T User \u0026amp; Hookup Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/envistiamall.com\/blogs\/learn\/tagged\/linear-regulators\" title=\"Linear Regulator Module User Guides\" rel=\"noopener\" target=\"_blank\"\u003eAll Linear Regulator Module User Guides\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cem\u003eSold and supported by\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/envistiamall.com\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eEnvistia Mall\u003c\/a\u003e. Ships from the USA. For wiring diagrams, setup instructions, and troubleshooting, see the User Guide. The manufacturer and Envistia LLC (dba Envistia Mall) are not responsible for any damages or losses resulting from the use of this product. Always follow proper electrical safety practices when working with electronic components. Specifications are based on manufacturer data and are subject to change without notice.\u003c\/em\u003e\u003c\/p\u003e","brand":"ENVISTIA","offers":[{"title":"Default Title","offer_id":31604876509268,"sku":"EM-POWER-0036","price":3.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1641\/0911\/products\/5-35vdc-or-5-22vac-to-1-34vdc-lm317t-adjustable-step-down-linear-regulator-converter-power-supply-module-528829.jpg?v=1594221383","url":"https:\/\/envistiamall.com\/products\/lm317t-1-34vdc-adjustable-step-down-linear-regulator-module","provider":"Envistia Mall","version":"1.0","type":"link"}