DM02 3A Step-Down DC-DC Buck Converter Module with Fixed 3.3V Output

DM02 3A Step-Down DC-DC Buck Converter Module with Fixed 3.3V Output
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  • Product Code:SQ3643
  • Availability: 1000
  • $0.95
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  • Ex Tax:$0.95
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Tags: DM02, step-down module, 3A buck converter, 3.3V regulator, DC-DC converter, MP1584, fixed output module, embedded power supply, mini buck module, voltage regulator

The DM02 3A step-down DC-DC buck converter module is a high-frequency, non-isolated switching regulator designed to provide a stable and efficient fixed 3.3V output from a wide input voltage range of 4.5V to 28V DC. Built around an MP1584-class high-frequency step-down controller, this compact DM02 module delivers up to 3A of peak output current (2.5A continuous) with a conversion efficiency of approximately 92%, making it an excellent choice for embedded systems, robotics, and portable electronic projects that require a reliable 3.3V power rail.

This step-down voltage regulator module features a fixed 3.3V output with an accuracy of ±0.1V and an output ripple of less than 50mV, ensuring clean and stable power delivery to sensitive digital circuits and microcontrollers. The module supports an input voltage range of 4.5V to 28V DC, with the requirement that the input voltage must be at least 1V higher than the output. This wide input range makes it compatible with a variety of power sources, including 5V USB supplies, 12V automotive systems, and 24V industrial power rails.

The DM02 module measures just 16.5mm x 22mm x 4mm and features a no-load quiescent current of only 0.5mA, making it highly efficient for battery-powered applications. The module operates over an extended temperature range of -40°C to +85°C, with a storage temperature of -40°C to +125°C, ensuring reliable performance in demanding environments. Typical applications include embedded boards, flying robots, model aircraft, automotive electronics, industrial power conversion, and battery charging systems.

 DC-DC converter module Application

  1. Embedded systems and development boards requiring stable 3.3V power
  2. Robotics and flying robot power supply
  3. Model aircraft and RC vehicle electronics
  4. Automotive electronics and 12V/24V to 3.3V conversion
  5. Industrial power conversion and control systems
  6. Battery charging and power management circuits
  7. Portable electronic devices and IoT hardware
  8. DIY electronics and prototyping projects

 DC-DC converter module Specifications

  1. Product Model: DM02
  2. Module Type: Non-isolated step-down (buck) DC-DC converter
  3. Controller IC: MP1584-class high-frequency step-down regulator
  4. Input Voltage Range: 4.5V to 28V DC (input must be at least 1V higher than output)
  5. Output Voltage: 3.3V DC (fixed)
  6. Output Voltage Accuracy: ±0.1V
  7. Output Current (Peak): 3A
  8. Output Current (Continuous): 2.5A
  9. Conversion Efficiency: Approximately 92%
  10. Output Ripple: Less than 50mV
  11. No-Load Quiescent Current: 0.5mA
  12. Operating Temperature: -40°C to +85°C
  13. Storage Temperature: -40°C to +125°C
  14. Module Dimensions: 16.5mm × 22mm × 4mm
  15. Rectification Mode: Synchronous rectification
  16. Protection Features: Over-current protection, thermal shutdown, input under-voltage lockout

Features

  1. Wide input voltage range: 4.5V to 28V DC
  2. Fixed 3.3V output with ±0.1V accuracy
  3. Up to 3A peak output current (2.5A continuous)
  4. High conversion efficiency of approximately 92%
  5. Low output ripple of less than 50mV
  6. Ultra-low no-load quiescent current of 0.5mA
  7. Compact dimensions: 16.5mm × 22mm × 4mm
  8. Synchronous rectification for high efficiency
  9. Extended operating temperature range: -40°C to +85°C
  10. Input under-voltage lockout and over-current protection
  11. Thermal shutdown protection for safe operation
  12. Requires input voltage to be at least 1V higher than output
Motor Specifications
Peak Current 3A
Electrical Parameters
Input Voltage DC 4.5-28V
Output Voltage DC 3.3V
Physical Parameters
Size 16.5mm x 22mmx 4mm

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