{"product_id":"lm2596-dual-usb-3a-dc-dc-buck-converter-6v-40v-to-5v-step-down-module","title":"LM2596 Dual USB 3A DC-DC Buck Converter – 6V–40V to 5V Step-Down Module","description":"\n\u003ch2\u003eLM2596 Dual USB 3A Buck Converter Step-Down Module – 5V DC Output\u003c\/h2\u003e\n\n\u003cp\u003eBuy the \u003cstrong\u003eLM2596 Dual USB 3A Buck Converter Step-Down Module\u003c\/strong\u003e online in Pakistan from \u003cstrong\u003eRobostan.pk\u003c\/strong\u003e. This compact DC-DC power converter transforms a higher DC input voltage into a regulated 5V output through two convenient USB-A ports.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for DIY USB power supplies, vehicle electronics, Arduino projects, mobile device charging, and embedded systems, the \u003cstrong\u003eLM2596 Dual USB Converter\u003c\/strong\u003e accepts a commonly specified 6V to 40V DC input and delivers a fixed 5V output with up to 3A maximum combined current under suitable operating conditions.\u003c\/p\u003e\n\n\u003cp\u003eWith an efficient switching regulator design, dual USB connections, and simple input wiring, this module is a practical solution for powering compatible 5V USB devices from 12V or 24V DC power sources.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLM2596 DC-DC step-down buck converter module\u003c\/li\u003e\n\u003cli\u003eTwo USB Type-A output ports\u003c\/li\u003e\n\u003cli\u003eFixed regulated 5V DC output\u003c\/li\u003e\n\u003cli\u003eTypical advertised input voltage: 6V to 40V DC\u003c\/li\u003e\n\u003cli\u003eMaximum combined USB output current: 3A\u003c\/li\u003e\n\u003cli\u003eBased on LM2596 switching regulator technology\u003c\/li\u003e\n\u003cli\u003e150kHz switching frequency\u003c\/li\u003e\n\u003cli\u003eAdvertised conversion efficiency up to 92%\u003c\/li\u003e\n\u003cli\u003eSuitable for 12V and 24V DC power systems\u003c\/li\u003e\n\u003cli\u003eCompatible with suitable USB-powered electronics\u003c\/li\u003e\n\u003cli\u003eConvenient input connections on common board versions\u003c\/li\u003e\n\u003cli\u003eCompact PCB for custom power supply projects\u003c\/li\u003e\n\u003cli\u003eUseful for Arduino, robotics and embedded electronics\u003c\/li\u003e\n\u003cli\u003eSuitable for DIY vehicle USB power adapters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eLM2596 Dual USB Buck Converter Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegulator Type\u003c\/td\u003e\n\u003ctd\u003eDC-DC Step-Down \/ Buck Converter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRegulator IC\u003c\/td\u003e\n\u003ctd\u003eLM2596 or equivalent on compatible boards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e6V to 40V DC (advertised module range)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e5V DC fixed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Output Current\u003c\/td\u003e\n\u003ctd\u003e3A total, shared between both USB ports\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Nominal Output Power\u003c\/td\u003e\n\u003ctd\u003e15W at 5V and 3A, subject to operating limits\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Ports\u003c\/td\u003e\n\u003ctd\u003e2 x USB Type-A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003e150kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdvertised Efficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 92%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Polarity\u003c\/td\u003e\n\u003ctd\u003ePositive (+) and Negative (-)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConversion Direction\u003c\/td\u003e\n\u003ctd\u003eStep-Down Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Adjustment\u003c\/td\u003e\n\u003ctd\u003eNot adjustable on the standard fixed-5V version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Board Dimensions\u003c\/td\u003e\n\u003ctd\u003eApproximately 59 x 21 x 17mm on common versions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eNon-isolated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDIY 12V to 5V USB power supplies\u003c\/li\u003e\n\u003cli\u003eVehicle USB charging projects\u003c\/li\u003e\n\u003cli\u003e24V to 5V DC conversion\u003c\/li\u003e\n\u003cli\u003eMobile phone charging from suitable DC sources\u003c\/li\u003e\n\u003cli\u003eUSB-powered Arduino projects\u003c\/li\u003e\n\u003cli\u003eESP32 and microcontroller power supply projects\u003c\/li\u003e\n\u003cli\u003ePortable electronics power distribution\u003c\/li\u003e\n\u003cli\u003eBattery-powered USB accessories\u003c\/li\u003e\n\u003cli\u003eSolar-powered USB supply experiments\u003c\/li\u003e\n\u003cli\u003eCustom electronics enclosures\u003c\/li\u003e\n\u003cli\u003eRobotics and automation power supplies\u003c\/li\u003e\n\u003cli\u003eEducational DC-DC converter experiments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow Does the LM2596 Dual USB Converter Work?\u003c\/h3\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eLM2596 Dual USB Step-Down Module\u003c\/strong\u003e uses a switching regulator to reduce a higher DC input voltage to a lower regulated output voltage.\u003c\/p\u003e\n\n\u003cp\u003eThe LM2596 switches current through an inductor and associated power components to regulate the output efficiently.\u003c\/p\u003e\n\n\u003cp\u003eOn the standard dual-USB board, the output is fixed at approximately 5V and connected to both USB-A sockets.\u003c\/p\u003e\n\n\u003cp\u003eThis allows suitable USB devices to receive 5V power from a 12V, 24V, or other compatible DC input source.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This module reduces voltage only. It cannot increase a voltage below the level required to maintain its 5V output.\u003c\/p\u003e\n\n\u003ch3\u003eDual USB 5V Output\u003c\/h3\u003e\n\n\u003cp\u003eThe module includes two USB-A output ports, allowing compatible USB-powered devices to be connected simultaneously.\u003c\/p\u003e\n\n\u003cp\u003eThe published 3A output capability refers to the \u003cstrong\u003ecombined maximum current across both USB ports\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eIt does not mean that each port can independently deliver 3A at the same time.\u003c\/p\u003e\n\n\u003cp\u003eThe actual available current depends on the module's regulator, PCB layout, input source, cooling and operating temperature.\u003c\/p\u003e\n\n\u003ch3\u003e12V to 5V USB Power Supply\u003c\/h3\u003e\n\n\u003cp\u003eThe LM2596 Dual USB Buck Converter is useful for generating a 5V supply from a suitable 12V DC source.\u003c\/p\u003e\n\n\u003cp\u003eFor example, it can be integrated into custom vehicle electronic projects where a 12V battery powers USB accessories.\u003c\/p\u003e\n\n\u003cp\u003eThe module can also be used with appropriate regulated DC adapters and battery systems.\u003c\/p\u003e\n\n\u003cp\u003eFor automotive installations, suitable external protection against voltage spikes, reverse polarity and electrical noise should be provided.\u003c\/p\u003e\n\n\u003ch3\u003e24V to 5V DC Converter\u003c\/h3\u003e\n\n\u003cp\u003eThe module can also reduce a compatible 24V DC input to a regulated 5V output.\u003c\/p\u003e\n\n\u003cp\u003eThis makes it suitable for appropriate low-power electronics and USB supply applications where a 24V source is available.\u003c\/p\u003e\n\n\u003cp\u003eAt higher input voltages and output currents, converter temperature and power dissipation should be monitored carefully.\u003c\/p\u003e\n\n\u003ch3\u003eLM2596 Dual USB Wiring\u003c\/h3\u003e\n\n\u003cp\u003eThe standard module includes positive and negative DC input connections.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN+:\u003c\/strong\u003e Positive DC input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIN-:\u003c\/strong\u003e Negative DC input \/ Ground\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Port 1:\u003c\/strong\u003e Fixed 5V output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Port 2:\u003c\/strong\u003e Fixed 5V output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eConnect a suitable DC source to the marked input terminals, observing correct polarity.\u003c\/p\u003e\n\n\u003cp\u003eBefore connecting USB devices, measure the output voltage to confirm that the module is delivering approximately 5V.\u003c\/p\u003e\n\n\u003ch3\u003eLM2596 Dual USB vs LM2596 Adjustable Buck Converter\u003c\/h3\u003e\n\n\u003cp\u003eBoth products use LM2596-family step-down regulator technology, but their board configurations differ.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLM2596 Dual USB Module:\u003c\/strong\u003e Designed to provide a fixed 5V output through two USB-A ports.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLM2596 Adjustable Buck Converter:\u003c\/strong\u003e Usually provides an adjustable output voltage through screw terminals or solder pads.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eChoose the dual-USB version for convenient 5V USB-powered projects. Select the adjustable version when your circuit requires another suitable regulated voltage.\u003c\/p\u003e\n\n\u003ch3\u003eLM2596 Dual USB vs Quick Charging Modules\u003c\/h3\u003e\n\n\u003cp\u003eThe standard LM2596 Dual USB Converter supplies regulated 5V power.\u003c\/p\u003e\n\n\u003cp\u003eIt should not be confused with USB Power Delivery (PD), Qualcomm Quick Charge (QC), or other fast-charging negotiation modules.\u003c\/p\u003e\n\n\u003cp\u003eSupported charging current and device compatibility depend on the connected device and the USB port identification circuitry implemented on the specific board.\u003c\/p\u003e\n\n\u003ch3\u003eAdvantages of the LM2596 Dual USB Module\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003eTwo USB Outputs:\u003c\/strong\u003e Convenient connection of compatible USB-powered devices.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWide DC Input Range:\u003c\/strong\u003e Suitable for many 12V and 24V power supply projects.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSwitching Regulation:\u003c\/strong\u003e More efficient than many simple linear regulator designs under suitable conditions.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFixed 5V Output:\u003c\/strong\u003e Convenient for projects requiring standard USB power.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Easy to incorporate into DIY electronics and power conversion projects.\u003c\/p\u003e\n\n\u003ch3\u003eImportant Safety and Usage Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse only DC power within the limits specified for your actual module.\u003c\/li\u003e\n\u003cli\u003eObserve correct input polarity to avoid permanent damage.\u003c\/li\u003e\n\u003cli\u003eDo not connect directly to AC mains.\u003c\/li\u003e\n\u003cli\u003eThe 3A rating is a maximum shared output, not a guaranteed continuous current from each port.\u003c\/li\u003e\n\u003cli\u003eCheck regulator temperature under load and provide adequate ventilation.\u003c\/li\u003e\n\u003cli\u003eDo not exceed the thermal or current limits of the converter.\u003c\/li\u003e\n\u003cli\u003eMaintain suitable input voltage margin above the regulated 5V output.\u003c\/li\u003e\n\u003cli\u003eThe manufacturer's 40V input figure may be close to the regulator's maximum rating; avoid input voltage spikes.\u003c\/li\u003e\n\u003cli\u003eMeasure the USB output before connecting expensive electronic devices.\u003c\/li\u003e\n\u003cli\u003eThe module is not a USB-C PD charger or a guaranteed QC fast charger.\u003c\/li\u003e\n\u003cli\u003eIt does not include the complete charging-management circuitry required to charge bare lithium-ion cells safely.\u003c\/li\u003e\n\u003cli\u003eUse a suitably protected power supply for automotive applications.\u003c\/li\u003e\n\u003cli\u003eThe converter is non-isolated and does not provide galvanic isolation.\u003c\/li\u003e\n\u003cli\u003eBoard layout and dimensions may vary between manufacturers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x LM2596 Dual USB 3A DC-DC Buck Converter Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuy LM2596 Dual USB Converter in Pakistan\u003c\/h3\u003e\n\n\u003cp\u003eLooking for an \u003cstrong\u003eLM2596 Dual USB 3A Buck Converter in Pakistan\u003c\/strong\u003e? Shop online at \u003cstrong\u003eRobostan.pk\u003c\/strong\u003e for USB power modules, DC-DC converters, LM2596 voltage regulators, Arduino accessories, battery electronics and robotics components.\u003c\/p\u003e\n\n\u003cp\u003eThis dual-USB module is useful for students, engineers, technicians and electronics enthusiasts developing compact low-voltage DC power supply projects.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOrder your LM2596 Dual USB Step-Down Converter from Robostan.pk\u003c\/strong\u003e with nationwide delivery across Pakistan, including Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar and other cities.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRobostan.pk – Build. Innovate. Create.\u003c\/strong\u003e\u003c\/p\u003e\n","brand":"ROBOSTAN","offers":[{"title":"Default Title","offer_id":68381851779438,"sku":null,"price":270.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/7391\/8062\/files\/ChatGPTImageNov14_2026_03_38_33PM-2.png?v=1794653151","url":"https:\/\/robostan.pk\/products\/lm2596-dual-usb-3a-dc-dc-buck-converter-6v-40v-to-5v-step-down-module","provider":"ROBOSTAN","version":"1.0","type":"link"}