AC-DC 3.3V 500mA 3W Switching Power Supply Module Voltage Regulator Switching Circuit Bare Board Buck 220V-3.3V Converter Module

AC-DC 3.3V 500mA 3W Switching Power Supply Module Voltage Regulator Switching Circuit Bare Board Buck 220V-3.3V Converter Module Features: 1. Using high-quality materials, the quality is guaranteed 2. Wide input voltage range 3. With overload, short circuit, over temperature protection functions 4. Small size and high efficiency 5. Simple operation and wide application range Parameter: Output voltage: 3.3V Output accuracy: ±1% Voltage regulation rate: ±1% Load Regulation: ±1.3% Notice: 1. All parameters are measured under the conditions of rated voltage 220V AC input, rated load, environment 25°C, and humidity 70%. 2. Accuracy: including setting error, voltage regulation rate, load regulation rate. 3. Rple test: connect the power supply and the load with a 30cm long stranded wire, with 0.1uF and 47uF s at the load end, and measure it with a 20MH oscillo at the load end. 4. Voltage regulation rate: Under rated load conditions, the input voltage changes from low to high. 5. Load regulation rate: The measured output is measured from 0% load to 100% load change. 6. Each channel can output the maximum current, but the sum of the total load cannot exceed the maximum output power. Package list: Power board module*1

About shping
Shping and Pack All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.