Dual Display 3A DC-DC 5-23V To 0-16.5V Step Down Power Supply Buck Converter Adjustable LCD Step- down Voltage Regulator Without Case
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The Dual Display 3A DC-DC Step-Down Buck Converter is a versatile and compact adjustable voltage regulator designed for precision power supply applications. It accepts an input voltage of 5–23V and provides an adjustable output from 0–16.5V, making it ideal for powering low-voltage electronics, DIY projects, and lab testing setups.
Equipped with an STN LCD display, this module simultaneously shows both output voltage and current, allowing real-time monitoring of your circuit performance. It also supports reverse polarity protection for enhanced safety.
Unlike traditional potentiometer-based regulators, this module includes a tactile push button for fine-tuning voltage adjustments, offering higher accuracy and ease of control. With up to 95% conversion efficiency and automatic current adaptation according to load, it delivers reliable performance for a wide range of applications.
Its compact size and user-friendly design make it a perfect tool for students, hobbyists, and professionals working with electronics.
Applications
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DIY electronics projects
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Laboratory testing and experiments
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Power supply for Arduino, ESP32, Raspberry Pi, and microcontrollers
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Battery charging (within rated limits)
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LED drivers and small motor control
Features
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Input voltage: 5–23V, output adjustable 0–16.5V
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Dual LCD display for voltage & current monitoring
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High efficiency up to 95%
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Reverse polarity protection for safety
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Output current up to 3A (recommended ≤2A without heatsink)
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Automatic load current adaptation
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Push button control for fine voltage adjustment
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Compact and lightweight design
Specifications
| Parameter | Value |
|---|---|
| Converter Type | DC-DC Step-Down (Buck) |
| Input Voltage | 5–23V |
| Output Voltage | 0–16.5V (adjustable) |
| Minimum Voltage Difference | 1V |
| Output Current | Max 3A (recommended ≤2A) |
| Conversion Efficiency | Up to 95% |
| Display Module | STN LCD |
| Display Accuracy | ±1% |
| LCD Size | 37.5 x 17.0 mm |
| Resolution | 0.01 |
| Load Regulation (S (I)) | ≤0.8% |
| Voltage Regulation (S (U)) | ≤0.8% |
| Module Size | 62 x 44 x 18 mm |
| Motherboard Size | 50 x 30 x 12 mm |
| Operating Protection | Reverse polarity |
Package Includes
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1 x Dual Display 3A DC-DC 5–23V to 0–16.5V Step-Down Power Supply Buck Converter Adjustable LCD Voltage Regulator