3pcs XL4015 5A Adjustable DC-DC Step-Down Power Module 96% Efficiency -40°C to 85°C Wide Temp Range STM32 Compatible
3pcs XL4015 5A Adjustable DC-DC Step-Down Power Module 96% Efficiency -40°C to 85°C Wide Temp Range STM32 Compatible
1. Key Parameters Input Voltage: 4-38V DC (Min Input > Output +2V) Output Voltage: 1.25-36V Continuously Adjustable Output Current: 0-5A (Max 4.5A Sustained; 5A Peak) Output Power: 75W Max (≥50W Requires Heatsink) Conversion Efficiency: Up to 96% Switching Frequency: 180 kHz Protections: Short-Circuit Limit (8A) Over-Temperature Shutdown Output Over-Current Operating Temp.: -40°C to +85°C Dimensions: 51.2×26.2×15 mm (Typical) 2. Pin Functions V-IN+: DC Input Positive (4-38V) - Requires stable source; reverse polarity unprotected. V-IN-: Input Ground - Isolate from output ground to avoid bypassing current-sense resistor. V-OUT+: Output Positive (1.25-36V) - Connect to load/LED/battery anode. V-OUT-: Output Ground - Separate path from input ground; star topology recommended. CV/CC Pots: CV Pot: Adjusts output voltage (rotate clockwise ↑ voltage). CC Pot: Sets current limit (use 10A multimeter to calibrate) . 3. Frequently Asked Questions (FAQ) Q1: Why does output voltage drop under load? A: Normal! A 0.05Ω current-sense resistor on V-OUT- causes 0–0.3V drop. This is not load-related . Q2: How to set CC/CV modes for battery charging? A: CV Mode: Unloaded→ Adjust CV pot to battery float voltage (e.g., 4.2V for Li-ion). CC Mode: Short output→ Adjust CC pot to target current (e.g., 1A) using multimeter . Q3: Overheating at >35W? A: Mandatory heatsink! Attach to XL4015 chip with thermal paste. Ensure ambient temp <85°C .
Product Features
- High Efficiency Power Module 96% Conversion Efficiency; 4-38V Input Range; 75W Max Output; Suitable for LED Lighting and Battery Charging
- Wide Adjustable Output 1.25-36V Continuously Adjustable; 0-5A Current Limit; 10-bit Precision Control; Suitable for Custom Power Systems
- Robust Protection Features Short-Circuit Protection (8A); Over-Temperature Shutdown; Isolated Ground Design; Ensures Safe Operation in Variable Enviro nments
- User-Friendly Setup Easy-to-Adjust CV/CC Settings; Clear Potentiometer Controls; Simple Calibration with Multimeter; Minimizes Configuration Time
- Stable Performance Under Load Low Dropout Voltage; No Calibration Drift; -40C to +85C Operating Range; Reliable for Continuous Use in Industrial and Hobby Applications