{"product_id":"mp1484-3a-dc-dc-step-down-power-supply-module-fixed-selectable-output","title":"MP1484 3A DC-DC Step-Down Power Supply Module (Fixed \/ Selectable Output)","description":"\u003cp data-path-to-node=\"4\"\u003eWhen your electronics project requires a highly specific, unwavering logic voltage, mechanical adjustment potentiometers can sometimes be a liability if they drift due to intense physical vibration or temperature changes. The MP1484 fixed-output buck converter solves this problem beautifully by incorporating an innovative solder-pad array on the back of the printed circuit board. While you can use the onboard potentiometer to dial in a custom voltage, you also have the option to bypass the potentiometer entirely. By simply cutting a tiny trace and bridging a dedicated solder pad, you instantly lock the module to a permanent, factory-set 1.8-Volt, 2.5-Volt, 3.3-Volt, 5-Volt, 9-Volt, or 12-Volt output.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eBuilt around the monolithic MP1484 synchronous switching regulator, this module readily accepts input voltages ranging from 4.75 Volts up to 18 Volts. Operating at a fixed 340 kHz switching frequency, it requires minimal onboard filtering components, keeping its physical footprint incredibly small while comfortably delivering up to 3 Amps of continuous load current. It is an outstanding, vibration-proof power solution for robotics, drones, and rugged industrial enclosures where an accidental voltage bump could destroy sensitive microcontrollers.\u003c\/p\u003e\n\u003cp data-path-to-node=\"6\"\u003e\u003cb data-path-to-node=\"6\" data-index-in-node=\"0\"\u003eKey Features \u0026amp; Functional Advantages\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"7\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,0,0\"\u003e\u003cb data-path-to-node=\"7,0,0\" data-index-in-node=\"0\"\u003eDual-Mode Output:\u003c\/b\u003e Offers both a standard precision potentiometer for fully custom voltages and a set of rear solder pads for locking in standard fixed voltages.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,1,0\"\u003e\u003cb data-path-to-node=\"7,1,0\" data-index-in-node=\"0\"\u003eVibration-Proof Reliability:\u003c\/b\u003e By using the fixed solder pads, the output voltage becomes completely immune to mechanical vibrations that would normally throw a standard potentiometer out of calibration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,2,0\"\u003e\u003cb data-path-to-node=\"7,2,0\" data-index-in-node=\"0\"\u003eSynchronous Rectification:\u003c\/b\u003e Integrates low-resistance internal MOSFETs to achieve up to 95 percent conversion efficiency, drastically reducing thermal waste and maximizing battery life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,3,0\"\u003e\u003cb data-path-to-node=\"7,3,0\" data-index-in-node=\"0\"\u003eCompact Footprint:\u003c\/b\u003e The high 340 kHz switching frequency allows for the use of small onboard inductors and capacitors, making the module extremely easy to hide in tight enclosures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"7,4,0\"\u003e\u003cb data-path-to-node=\"7,4,0\" data-index-in-node=\"0\"\u003eComprehensive Protection:\u003c\/b\u003e Features built-in hardware safeguards including cycle-by-cycle over-current protection, thermal shutdown, and an adjustable soft-start to prevent destructive inrush current spikes.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"8\"\u003e\u003cb data-path-to-node=\"8\" data-index-in-node=\"0\"\u003ePerfect For\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eHigh-Vibration Environments:\u003c\/b\u003e The absolute best choice for drones, RC vehicles, and mobile robotics where continuous mechanical shaking would typically alter a standard adjustable converter.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003eDedicated Logic Power:\u003c\/b\u003e Locking in a permanent 3.3-Volt or 5-Volt power rail to safely run ESP-based Wi-Fi modules, standard development boards, and delicate sensor arrays without fear of over-voltaging.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eCustom Automotive Builds:\u003c\/b\u003e Stepping down a car's noisy, fluctuating 12-Volt system to a perfectly stable fixed output for custom dashboard displays and networking gear.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eMass Production Prototyping:\u003c\/b\u003e Ideal for testing custom DIY hardware where you need absolute certainty that your input voltage will not accidentally change during bench testing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eTechnical Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003eDevice Type:\u003c\/b\u003e DC-DC Step-Down (Buck) Switching Converter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003eMain Control Chip:\u003c\/b\u003e MP1484EN\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003e\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003eInput Voltage Range:\u003c\/b\u003e 4.75 Volts to 18.0 Volts DC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,3,0\"\u003e\u003cb data-path-to-node=\"11,3,0\" data-index-in-node=\"0\"\u003eSelectable Fixed Outputs:\u003c\/b\u003e 1.8V, 2.5V, 3.3V, 5.0V, 9.0V, 12.0V (Via rear solder pads)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,4,0\"\u003e\u003cb data-path-to-node=\"11,4,0\" data-index-in-node=\"0\"\u003eAdjustable Output Range:\u003c\/b\u003e 0.925 Volts to 15.0 Volts DC (Via potentiometer)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,5,0\"\u003e\u003cb data-path-to-node=\"11,5,0\" data-index-in-node=\"0\"\u003eMaximum Output Current:\u003c\/b\u003e 3.0 Amps (Continuous)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,6,0\"\u003e\u003cb data-path-to-node=\"11,6,0\" data-index-in-node=\"0\"\u003eSwitching Frequency:\u003c\/b\u003e 340 kHz\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,7,0\"\u003e\u003cb data-path-to-node=\"11,7,0\" data-index-in-node=\"0\"\u003eMaximum Efficiency:\u003c\/b\u003e Up to 95 percent\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"K-TECHNICS","offers":[{"title":"Default Title","offer_id":42873592447047,"sku":null,"price":0.0,"currency_code":"KES","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0680\/7637\/2039\/files\/S39fd60e4a365481a86ca12e72067f71b7_jpg_960x960q75_jpg.webp?v=1781293259","url":"https:\/\/www.ktechnics.com\/products\/mp1484-3a-dc-dc-step-down-power-supply-module-fixed-selectable-output","provider":"K-TECHNICS","version":"1.0","type":"link"}