{"product_id":"20a-300w-high-power-dc-dc-adjustable-buck-converter-module","title":"20A 300W High-Power DC-DC Adjustable Buck Converter Module with Constant Voltage \u0026 Constant Current Protection","description":"\u003cp data-start=\"1587\" data-end=\"1992\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong data-start=\"1591\" data-end=\"1653\"\u003e20A 300W High-Power DC-DC Adjustable Buck Converter Module\u003c\/strong\u003e is a high-current step-down power supply designed to convert higher DC input voltages into stable adjustable lower output voltages. With Constant Voltage (CV), Constant Current (CC) regulation and short circuit protection, it is ideal for battery charging, LED drivers, laboratory power supplies, solar systems and industrial electronics.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"mzm7mz\" data-start=\"1999\" data-end=\"2020\"\u003eProduct Description\u003c\/h3\u003e\n\u003cp data-start=\"2022\" data-end=\"2473\"\u003eThe \u003cstrong data-start=\"2026\" data-end=\"2088\"\u003e20A 300W High-Power DC-DC Adjustable Buck Converter Module\u003c\/strong\u003e is a reliable step-down voltage regulator designed for applications that require stable, adjustable DC output with high current capability. Supporting an input voltage range of \u003cstrong data-start=\"2266\" data-end=\"2282\"\u003e6V to 40V DC\u003c\/strong\u003e and an adjustable output voltage from \u003cstrong data-start=\"2321\" data-end=\"2339\"\u003e1.2V to 36V DC\u003c\/strong\u003e, this module efficiently converts higher input voltages into regulated lower output voltages while maintaining excellent performance.\u003c\/p\u003e\n\u003cp data-start=\"2475\" data-end=\"2864\"\u003eThe module features \u003cstrong data-start=\"2495\" data-end=\"2520\"\u003eConstant Voltage (CV)\u003c\/strong\u003e and \u003cstrong data-start=\"2525\" data-end=\"2550\"\u003eConstant Current (CC)\u003c\/strong\u003e operation, making it suitable for charging lithium-ion, LiFePO₄ and lead-acid batteries, driving high-power LEDs and powering sensitive electronic equipment. Integrated short circuit protection improves operational safety, while the large heatsink ensures effective heat dissipation during demanding applications.\u003c\/p\u003e\n\u003cp data-start=\"2866\" data-end=\"3416\"\u003eDesigned for engineers, technicians, students and DIY electronics enthusiasts, this buck converter is widely used in laboratory power supplies, solar energy systems, automotive electronics, CNC equipment, robotics and industrial automation. Precision adjustment potentiometers allow accurate voltage and current settings, while screw terminals provide secure and convenient wiring. Whether you're building a custom power supply or upgrading an existing DC system, this 300W buck converter delivers efficient, stable and dependable voltage regulation.\u003c\/p\u003e\n\u003ch3 data-section-id=\"u0ybrq\" data-start=\"3423\" data-end=\"3437\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"3439\" data-end=\"3829\"\u003e\n\u003cli data-section-id=\"54ywd0\" data-start=\"3439\" data-end=\"3477\"\u003eHigh-Power DC-DC Step-Down Converter\u003c\/li\u003e\n\u003cli data-section-id=\"q6apqv\" data-start=\"3478\" data-end=\"3512\"\u003eAdjustable Constant Voltage (CV)\u003c\/li\u003e\n\u003cli data-section-id=\"5oqx2h\" data-start=\"3513\" data-end=\"3547\"\u003eAdjustable Constant Current (CC)\u003c\/li\u003e\n\u003cli data-section-id=\"3flglm\" data-start=\"3548\" data-end=\"3573\"\u003eUp to 300W Power Rating\u003c\/li\u003e\n\u003cli data-section-id=\"1mfwjrv\" data-start=\"3574\" data-end=\"3600\"\u003eUp to 20A Current Rating\u003c\/li\u003e\n\u003cli data-section-id=\"vwo53x\" data-start=\"3601\" data-end=\"3638\"\u003eIntegrated Short Circuit Protection\u003c\/li\u003e\n\u003cli data-section-id=\"gikyjt\" data-start=\"3639\" data-end=\"3667\"\u003eHigh Conversion Efficiency\u003c\/li\u003e\n\u003cli data-section-id=\"10tsuxf\" data-start=\"3668\" data-end=\"3698\"\u003ePrecision Voltage Adjustment\u003c\/li\u003e\n\u003cli data-section-id=\"1qxoxg8\" data-start=\"3699\" data-end=\"3729\"\u003ePrecision Current Adjustment\u003c\/li\u003e\n\u003cli data-section-id=\"vvabtd\" data-start=\"3730\" data-end=\"3756\"\u003eLarge Aluminium Heatsink\u003c\/li\u003e\n\u003cli data-section-id=\"yspxrt\" data-start=\"3757\" data-end=\"3785\"\u003eScrew Terminal Connections\u003c\/li\u003e\n\u003cli data-section-id=\"1hieayu\" data-start=\"3786\" data-end=\"3829\"\u003eSuitable for Industrial \u0026amp; DIY Electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"zjxypn\" data-start=\"3836\" data-end=\"3862\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"3864\" data-end=\"4545\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"3864\" data-end=\"3891\"\u003e\n\u003ctr data-start=\"3864\" data-end=\"3891\"\u003e\n\u003cth data-start=\"3864\" data-end=\"3880\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"3880\" data-end=\"3891\" data-col-size=\"md\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3919\" data-end=\"4545\"\u003e\n\u003ctr data-start=\"3919\" data-end=\"3965\"\u003e\n\u003ctd data-start=\"3919\" data-end=\"3934\" data-col-size=\"sm\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-start=\"3934\" data-end=\"3965\" data-col-size=\"md\"\u003eDC-DC Buck Converter Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3966\" data-end=\"4003\"\u003e\n\u003ctd data-start=\"3966\" data-end=\"3983\" data-col-size=\"sm\"\u003eConverter Type\u003c\/td\u003e\n\u003ctd data-start=\"3983\" data-end=\"4003\" data-col-size=\"md\"\u003eStep-Down (Buck)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4004\" data-end=\"4033\"\u003e\n\u003ctd data-start=\"4004\" data-end=\"4020\" data-col-size=\"sm\"\u003eInput Voltage\u003c\/td\u003e\n\u003ctd data-start=\"4020\" data-end=\"4033\" data-col-size=\"md\"\u003e6V–40V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4034\" data-end=\"4077\"\u003e\n\u003ctd data-start=\"4034\" data-end=\"4051\" data-col-size=\"sm\"\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd data-start=\"4051\" data-end=\"4077\" data-col-size=\"md\"\u003e1.2V–36V DC Adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4078\" data-end=\"4124\"\u003e\n\u003ctd data-start=\"4078\" data-end=\"4095\" data-col-size=\"sm\"\u003eOutput Current\u003c\/td\u003e\n\u003ctd data-start=\"4095\" data-end=\"4124\" data-col-size=\"md\"\u003eUp to 20A \u003cem data-start=\"4107\" data-end=\"4122\"\u003e(Peak Rating)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4125\" data-end=\"4193\"\u003e\n\u003ctd data-start=\"4125\" data-end=\"4158\" data-col-size=\"sm\"\u003eRecommended Continuous Current\u003c\/td\u003e\n\u003ctd data-start=\"4158\" data-end=\"4193\" data-col-size=\"md\"\u003eUp to 15A with adequate cooling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4194\" data-end=\"4225\"\u003e\n\u003ctd data-start=\"4194\" data-end=\"4217\" data-col-size=\"sm\"\u003eMaximum Output Power\u003c\/td\u003e\n\u003ctd data-start=\"4217\" data-end=\"4225\" data-col-size=\"md\"\u003e300W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4226\" data-end=\"4289\"\u003e\n\u003ctd data-start=\"4226\" data-end=\"4240\" data-col-size=\"sm\"\u003eOutput Mode\u003c\/td\u003e\n\u003ctd data-start=\"4240\" data-end=\"4289\" data-col-size=\"md\"\u003eConstant Voltage (CV) + Constant Current (CC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4290\" data-end=\"4331\"\u003e\n\u003ctd data-start=\"4290\" data-end=\"4303\" data-col-size=\"sm\"\u003eProtection\u003c\/td\u003e\n\u003ctd data-start=\"4303\" data-end=\"4331\" data-col-size=\"md\"\u003eShort Circuit Protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4332\" data-end=\"4369\"\u003e\n\u003ctd data-start=\"4332\" data-end=\"4356\" data-col-size=\"sm\"\u003eConversion Efficiency\u003c\/td\u003e\n\u003ctd data-start=\"4356\" data-end=\"4369\" data-col-size=\"md\"\u003eUp to 95%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4370\" data-end=\"4419\"\u003e\n\u003ctd data-start=\"4370\" data-end=\"4391\" data-col-size=\"sm\"\u003eVoltage Adjustment\u003c\/td\u003e\n\u003ctd data-start=\"4391\" data-end=\"4419\" data-col-size=\"md\"\u003eMulti-turn Potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4420\" data-end=\"4469\"\u003e\n\u003ctd data-start=\"4420\" data-end=\"4441\" data-col-size=\"sm\"\u003eCurrent Adjustment\u003c\/td\u003e\n\u003ctd data-start=\"4441\" data-end=\"4469\" data-col-size=\"md\"\u003eMulti-turn Potentiometer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4470\" data-end=\"4508\"\u003e\n\u003ctd data-start=\"4470\" data-end=\"4480\" data-col-size=\"sm\"\u003eCooling\u003c\/td\u003e\n\u003ctd data-start=\"4480\" data-end=\"4508\" data-col-size=\"md\"\u003eLarge Aluminium Heatsink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4509\" data-end=\"4545\"\u003e\n\u003ctd data-start=\"4509\" data-end=\"4527\" data-col-size=\"sm\"\u003eConnection Type\u003c\/td\u003e\n\u003ctd data-start=\"4527\" data-end=\"4545\" data-col-size=\"md\"\u003eScrew Terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-section-id=\"c3mln3\" data-start=\"4552\" data-end=\"4566\"\u003eApplications\u003c\/h3\u003e\n\u003cul data-start=\"4568\" data-end=\"4780\"\u003e\n\u003cli data-section-id=\"11ivp64\" data-start=\"4568\" data-end=\"4594\"\u003eBattery Charging Systems\u003c\/li\u003e\n\u003cli data-section-id=\"hocpwb\" data-start=\"4595\" data-end=\"4616\"\u003eLED Driver Circuits\u003c\/li\u003e\n\u003cli data-section-id=\"u1r5r5\" data-start=\"4617\" data-end=\"4644\"\u003eLaboratory Power Supplies\u003c\/li\u003e\n\u003cli data-section-id=\"58qd73\" data-start=\"4645\" data-end=\"4668\"\u003eSolar Energy Projects\u003c\/li\u003e\n\u003cli data-section-id=\"p2rx6i\" data-start=\"4669\" data-end=\"4693\"\u003eAutomotive Electronics\u003c\/li\u003e\n\u003cli data-section-id=\"9vvu0g\" data-start=\"4694\" data-end=\"4708\"\u003eCNC Machines\u003c\/li\u003e\n\u003cli data-section-id=\"g0eet1\" data-start=\"4709\" data-end=\"4719\"\u003eRobotics\u003c\/li\u003e\n\u003cli data-section-id=\"17og4a8\" data-start=\"4720\" data-end=\"4743\"\u003eIndustrial Automation\u003c\/li\u003e\n\u003cli data-section-id=\"labcvh\" data-start=\"4744\" data-end=\"4761\"\u003eDIY Electronics\u003c\/li\u003e\n\u003cli data-section-id=\"8d9kq8\" data-start=\"4762\" data-end=\"4780\"\u003eEmbedded Systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1i2miyw\" data-start=\"4787\" data-end=\"4802\"\u003eCompatibility\u003c\/h3\u003e\n\u003cp data-start=\"4804\" data-end=\"4820\"\u003eCompatible with:\u003c\/p\u003e\n\u003cul data-start=\"4822\" data-end=\"5022\"\u003e\n\u003cli data-section-id=\"19kcq7i\" data-start=\"4822\" data-end=\"4845\"\u003eLithium-Ion Batteries\u003c\/li\u003e\n\u003cli data-section-id=\"gegoou\" data-start=\"4846\" data-end=\"4865\"\u003eLiFePO₄ Batteries\u003c\/li\u003e\n\u003cli data-section-id=\"1mbsce8\" data-start=\"4866\" data-end=\"4887\"\u003eLead Acid Batteries\u003c\/li\u003e\n\u003cli data-section-id=\"6kny2u\" data-start=\"4888\" data-end=\"4909\"\u003e12V Battery Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1h2b3k3\" data-start=\"4910\" data-end=\"4931\"\u003e24V Battery Systems\u003c\/li\u003e\n\u003cli data-section-id=\"13cxb59\" data-start=\"4932\" data-end=\"4954\"\u003eLED Lighting Systems\u003c\/li\u003e\n\u003cli data-section-id=\"2lcxlu\" data-start=\"4955\" data-end=\"4976\"\u003eSolar Power Systems\u003c\/li\u003e\n\u003cli data-section-id=\"1asvp5f\" data-start=\"4977\" data-end=\"4996\"\u003eRobotics Projects\u003c\/li\u003e\n\u003cli data-section-id=\"1dpqi8y\" data-start=\"4997\" data-end=\"5022\"\u003eIndustrial DC Equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"hg9dub\" data-start=\"5029\" data-end=\"5047\"\u003ePackage Includes\u003c\/h3\u003e\n\u003cul data-start=\"5049\" data-end=\"5113\"\u003e\n\u003cli data-section-id=\"9n6zwq\" data-start=\"5049\" data-end=\"5113\"\u003e1 × 20A 300W High-Power DC-DC Adjustable Buck Converter Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1bujgeb\" data-start=\"5120\" data-end=\"5137\"\u003eImportant Notes\u003c\/h3\u003e\n\u003cul data-start=\"5139\" data-end=\"5492\"\u003e\n\u003cli data-section-id=\"14r45a4\" data-start=\"5139\" data-end=\"5210\"\u003eThis is a \u003cstrong data-start=\"5151\" data-end=\"5181\"\u003eStep-Down (Buck) Converter\u003c\/strong\u003e and cannot increase voltage.\u003c\/li\u003e\n\u003cli data-section-id=\"t7d9j8\" data-start=\"5211\" data-end=\"5285\"\u003eThe input voltage must always be higher than the desired output voltage.\u003c\/li\u003e\n\u003cli data-section-id=\"tvdb2n\" data-start=\"5286\" data-end=\"5354\"\u003eVerify the output voltage before connecting sensitive electronics.\u003c\/li\u003e\n\u003cli data-section-id=\"1epmide\" data-start=\"5355\" data-end=\"5421\"\u003eUse additional cooling during continuous high-current operation.\u003c\/li\u003e\n\u003cli data-section-id=\"y00mn5\" data-start=\"5422\" data-end=\"5492\"\u003eEnsure correct input and output polarity before powering the module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"lrexyz\" data-start=\"5499\" data-end=\"5512\"\u003eSetup Guide\u003c\/h3\u003e\n\u003ch3 data-section-id=\"1qucdzo\" data-start=\"5514\" data-end=\"5543\"\u003eOutput Voltage Adjustment\u003c\/h3\u003e\n\u003col data-start=\"5545\" data-end=\"5790\"\u003e\n\u003cli data-section-id=\"1um84ha\" data-start=\"5545\" data-end=\"5582\"\u003eConnect the DC input power supply.\u003c\/li\u003e\n\u003cli data-section-id=\"fujm4w\" data-start=\"5583\" data-end=\"5639\"\u003eMeasure the output voltage with a digital multimeter.\u003c\/li\u003e\n\u003cli data-section-id=\"ly670v\" data-start=\"5640\" data-end=\"5732\"\u003eRotate the voltage adjustment potentiometer until the desired output voltage is achieved.\u003c\/li\u003e\n\u003cli data-section-id=\"rq0242\" data-start=\"5733\" data-end=\"5790\"\u003eVerify the output voltage before connecting your load.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-section-id=\"7x5wz9\" data-start=\"5792\" data-end=\"5820\"\u003eCurrent Limit Adjustment\u003c\/h3\u003e\n\u003col data-start=\"5822\" data-end=\"6001\"\u003e\n\u003cli data-section-id=\"sl5s22\" data-start=\"5822\" data-end=\"5854\"\u003eConnect a suitable test load.\u003c\/li\u003e\n\u003cli data-section-id=\"1kncg83\" data-start=\"5855\" data-end=\"5935\"\u003eAdjust the current potentiometer until the required current limit is reached.\u003c\/li\u003e\n\u003cli data-section-id=\"l6k8kz\" data-start=\"5936\" data-end=\"6001\"\u003eConfirm the setting using an ammeter before regular operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3 data-section-id=\"2xgsg0\" data-start=\"6008\" data-end=\"6031\"\u003eWhy Buy from Chip.pk?\u003c\/h3\u003e\n\u003cul data-start=\"6033\" data-end=\"6282\"\u003e\n\u003cli data-section-id=\"1iqwzql\" data-start=\"6033\" data-end=\"6064\"\u003eGenuine electronic components\u003c\/li\u003e\n\u003cli data-section-id=\"8z38hz\" data-start=\"6065\" data-end=\"6090\"\u003eQuality-tested products\u003c\/li\u003e\n\u003cli data-section-id=\"1bboeec\" data-start=\"6091\" data-end=\"6131\"\u003eCompetitive retail \u0026amp; wholesale pricing\u003c\/li\u003e\n\u003cli data-section-id=\"l45g6o\" data-start=\"6132\" data-end=\"6163\"\u003eFast delivery across Pakistan\u003c\/li\u003e\n\u003cli data-section-id=\"1pedf4w\" data-start=\"6164\" data-end=\"6182\"\u003eSecure packaging\u003c\/li\u003e\n\u003cli data-section-id=\"pba99i\" data-start=\"6183\" data-end=\"6218\"\u003eTechnical support before purchase\u003c\/li\u003e\n\u003cli data-section-id=\"bcneu8\" data-start=\"6219\" data-end=\"6282\"\u003eTrusted supplier for students, engineers and industrial users\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"195ecoo\" data-start=\"6289\" data-end=\"6324\"\u003eFrequently Asked Questions (FAQs)\u003c\/h3\u003e\n\u003ch3 data-section-id=\"14h2y8r\" data-start=\"6326\" data-end=\"6355\"\u003eIs this a buck converter?\u003c\/h3\u003e\n\u003cp data-start=\"6357\" data-end=\"6476\"\u003eYes. It is a DC-DC Step-Down (Buck) Converter that reduces a higher input voltage to a lower adjustable output voltage.\u003c\/p\u003e\n\u003ch3 data-section-id=\"47kxqz\" data-start=\"6478\" data-end=\"6530\"\u003eCan I charge lithium batteries with this module?\u003c\/h3\u003e\n\u003cp data-start=\"6532\" data-end=\"6690\"\u003eYes. The Constant Voltage and Constant Current functions make it suitable for charging lithium-ion, LiFePO₄ and lead-acid batteries when configured correctly.\u003c\/p\u003e\n\u003ch3 data-section-id=\"x90kjr\" data-start=\"6692\" data-end=\"6737\"\u003eDoes it include short circuit protection?\u003c\/h3\u003e\n\u003cp data-start=\"6739\" data-end=\"6828\"\u003eYes. The module features built-in short circuit protection to improve operational safety.\u003c\/p\u003e\n\u003ch3 data-section-id=\"btmfvy\" data-start=\"6830\" data-end=\"6869\"\u003eWhat is the maximum output current?\u003c\/h3\u003e\n\u003cp data-start=\"6871\" data-end=\"6991\"\u003eThe module is rated for up to \u003cstrong data-start=\"6901\" data-end=\"6913\"\u003e20A peak\u003c\/strong\u003e, while adequate cooling is recommended for continuous high-current operation.\u003c\/p\u003e\n\u003ch3 data-section-id=\"l31whl\" data-start=\"6993\" data-end=\"7026\"\u003eCan I use it for LED drivers?\u003c\/h3\u003e\n\u003cp data-start=\"7028\" data-end=\"7137\"\u003eYes. It is suitable for powering high-power LED lighting systems with adjustable voltage and current control.\u003c\/p\u003e","brand":"Chip.pk","offers":[{"title":"Default Title","offer_id":51931971780893,"sku":null,"price":1200.0,"currency_code":"PKR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0998\/1060\/7389\/files\/20A-300W-buck-top.png?v=1784114626","url":"https:\/\/www.chip.pk\/products\/20a-300w-high-power-dc-dc-adjustable-buck-converter-module","provider":"Chip.pk","version":"1.0","type":"link"}