Mini MP1584EN DCDC Buck Adjustable StepDown Module
Compact 22mm x 17mm Power Converter for DIY Projects
The MP1584EN is a highefficiency DCDC buck step-down module that outperforms the LM2596 in a compact 22mm x 17mm footprint. Ideal for DIY mobile power boards and portable device power conversion.
Superior Efficiency - Up to 96% conversion rate
UltraCompact Size Fits tight spaces easily
Input voltage must exceed output by 1.5V minimum
Trim potentiometer for precise voltage adjustment
Do not exceed 28V input maximum
Technical Specifications
| Parameter | Value |
|---|
| Input Voltage | 4.5V to 28V DC |
| Output Voltage | 0.8V to 20V DC |
| Output Current | 3A max |
| Switching Frequency | 1.5MHz |
| Efficiency | Up to 96% |
| Dimensions | 22mm x 17mm |
| Module Type | MP1584EN |
= Key Features =
Higher Efficiency - Beats LM2596 performance
Small Footprint - Saves PCB real estate
Adjustable Output - Precision trim pot
Overheat Protection Thermal shutdown builtin
Short Circuit Protection - Safe for loads
= Applications =
- Mobile power bank boards
- Battery charging circuits
- Portable device power
- Sensor power supplies
- Arduino and ESP projects
- LED driver circuits
Space Saver Design - 22x17mm only
Efficient Power - Less heat generated
√ SMD components for reliability
√ Through-hole mounting pins
√ Adjustable via potentiometer
Connection Guide
Terminal connections:
- IN+ : Positive input (4.5-28V)
- IN- : Ground input
- OUT+ : Positive output
- OUT- : Ground output
Add input capacitor for stability
Use multi-turn pot for fine adjustment
Adjust voltage without load first
Ensure adequate heat dissipation
Adjustment Instructions
Set output voltage:
- Connect input power
- No load on output
- Turn trim pot clockwise (increase)
- Turn counterclockwise (decrease)
- Monitor with multimeter
Precise Tuning - Stable output
Wide Range - 0.8V to 20V adjustable
96% efficiency at optimal load
Compact solution for portable designs
√ Includes pin headers
√ Pre-calibrated to 5V default
√ Ready for breadboard use
Performance Notes
The MP1584EN operates at 1.5MHz switching frequency, allowing smaller inductors and capacitors compared to LM2596. This high frequency contributes to both the compact size and improved efficiency.
Use heatsink for continuous 3A loads
Add output capacitor for noise reduction
Avoid reverse polarity connection
Do not exceed power rating
Troubleshooting
No output:
- Check input voltage
- Verify wiring polarity
Avoid loose connections
Low voltage:
- Turn trim pot clockwise
- Check load current
Avoid undervoltage input
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