DFRobot
DC-DC Step Down Buck Converter (15~24V to 12V/12A)
· MPN: DFR1208
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##Introduction This DC-DC step-down converter module is designed to efficiently reduce a high input voltage (15-24V) to a stable 12V output, supporting up to...
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##Introduction This DC-DC step-down converter module is designed to efficiently reduce a high input voltage (15-24V) to a stable 12V output, supporting up to 12A of current. The module offers high conversion efficiency (over 95%), with minimal ripple noise (under 50mV), making it suitable for power-sensitive applications. It also includes built-in protection features such as over-temperature protection (up to 125°C) and short circuit protection, ensuring the safe operation of both the module and connected devices. High Conversion EfficiencyAchieves greater than 95% efficiency with 24V input and 1-12A load, minimizing energy loss and ensuring reliable power conversion for demanding applications.Over-Temperature and Short Circuit ProtectionFeatures over-temperature protection up to 125°C and output short circuit protection, safeguarding the module and connected devices from damage.Thermal Management for High-Current LoadsA built-in thermal pad allows for enhanced heat dissipation when soldered to a larger copper area, providing improved performance under heavy load conditions. The module features three control pins:Figure: Pin and Dimension Diagram of DC-DC step-down converter moduleEN: Floating (open) to enable the output, connected to ground to disable the output. It can be controlled by a microcontroller's IO pin with a 1K resistor in series.AGND: When control is needed from a microcontroller, connect a single ground point to this pad.PGOOD: Outputs a high level (5V) when the output voltage is normal. Outputs a low level (0V) when there is an abnormal output voltage or a short circuit. Conversion Efficiency Figure: Conversion efficiency (Input 24V, output 12V, with a load ranging from 1 to 12A) ##Applications Robotics, for driving motors and servosHigh-power LED lighting systemsDronesAutomotive electronics ##Specification Input Voltage: DC 15~24VOutput Voltage: DC 12V ±1%Max Output Current: 12AOutput Ripple Noise: ＜50mV (1~12A load)Conversion Efficiency: ＞95% (input 24V, load 1-12A)Static Current (EN floating): ＜3mAStatic Current (EN grounded): ＜3µAOperating Temperature: -25℃ ~ +70℃Output Short Circuit Protection: YesOver-Temperature Protection: 125°CDimensions: 30 x 26 x 8mm ##ShippingList DC-DC Buck Converter (15~24V to 12V/12A) × 1
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- Short circuit protection
- A safety feature that helps protect the device if its output or wiring is accidentally connected in a way that causes excessive current flow. This matters in automation wiring because mistakes or damaged cables can otherwise destroy the sensor or power supply.
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