DC-DC 5V to 3V 3.3V 4.2V 12V USB Buck Boost Power Supply Voltage Regulator Module Desktop Power Module


  Availability: In Stock
  Shipping: Free Airmail 
  Ship From: China Warehouse
  Estimated Delivery: 
  •   Shipping Methods

    Handling Time

    Before we can ship your order, we prepare your products, do strict quality-control tests and carefully package the items. The time it takes to prepare your items for shipping is separate from the delivery time. It usually takes 1-3 business days to ship out .

    Shipping Methods

    You can choose the preferred shipping method on the cart page during the checkout process. We offers 3 international shipping methods:

    1. Airmail – Free untracked economy shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    2. Airmail Registered – Tracked shipping via national postal services (HK Post, Singapore Post, China Post, PostNL, Swiss Post, Sweden Post, USPS, Royal Mail e.t.c.)
    3. Expedited Shipping – Express shipping with courier delivery (DHL, UPS, FedEx, TNT)

    Delivery Time

    Airmail and Airmail Registered Area Estimated Delivery Time
    United States, Canada 7-25 business days
    Australia, New Zealand, Singapore, United Arab Emirates 10-25 business days
    United Kingdom, France, Spain, Germany, Netherlands, Japan, Belgium, Denmark, Finland, Ireland, Norway, Portugal, Sweden, Switzerland 10-25 business days
    Italy, Brazil, Russia, South Africa 10-45 business days
    Other countries 10-35 business days
    Expedited Shipping 3-10 business days to Worldwide

    Note: If you choose an expedited shipping, please remember to leave a valid contact number, this is required for expedited shipping’s courier delivery.

  •  Returns & Refund

    Last updated October 05, 2022


    If you are not completely satisfied with your purchase for any reason, you may return it to us for a full refund within 15 days from delivery date. All returned items must be in new and unused condition, with all original tags and labels attached.

    Return Process

    To return an item, please email our customer service at sales@alexnld.com to obtain a Return Merchandise Authorization (RMA) number. After receiving a RMA number, place the item securely in its original packaging, and mail your return to the following address:

    Alex NLD
    Attn: Returns
    RMA #
    HaGiborim St 8
    Tiberias, 14388

    Please note, you will be responsible for the return shipping charges. We strongly recommend that you use a trackable method to mail your return.

    All customers should contact us and obtain Return Merchandise Authorization (RMA) number before sending anything to us. We will not be responsible for returned item(s) without notifying us in advance.


    After receiving your return and inspecting the condition of your item, we will process your refund to the credit / debit card or PayPal account which was used to place the original order.

    Please allow at least seven (7) days from the receipt of your item to process your refund. Refunds may take 1-2 billing cycles to appear on your credit card statement, depending on your credit card company. We will notify you by email when your refund has been processed.


    If an item is found damaged or defective on receipt, we kindly ask you to contact us within 15 days from the delivery date to arrange a refund or exchange without physical return of the item.

    Please provide us with following:

    1. Photos of the front and back sides of the packaging box;
    2. A photo, video or screenshot of the defective item or the defective part of the parcel.

    Our customer service team will communicate with you to arrange a refund or reshipment without physical return of the item.

    Warranty & Repair service

    If any of the items you have purchased from us is found defective within 1 year from receipt, you are entitled to a repair under warranty. Please kindly provide us with evidence photos or videos of the defective item. After providing such information to our Customer Service team  and the problem is acknowledged, you can send the items back to us for a repair.

    Note:  Please be aware, we do not cover the cost of the returns fees in  warranty & repair service.

    Order Cancellation

    If you want to cancel an order within 24 hours from confirmation of the payment, you will be entitled to a full refund. It is still possible to cancel an order after 24 hours, provided that it has not yet been shipped. If an order has been shipped, it’s impossible for us to cancel or modify it anymore. If you still want a refund, you required to return the item on it’s arrival.


    If you have any questions concerning our return policy, please contact us at:

    +972 054-536-2888



This is an instrument with integrated buck-boost power supply module and multi-function voltage ammeter.
In ‘PER’ work mode, it can be used as a buck-boost power supply module. It can convert to DC 3.5V~12V to DC 1.2V~24V and power is about 2W~3W.
In ‘VAH’ work mode, it can be used as multi-function voltage ammeter. It can be used to measure voltage, current, power, battery capacity, discharging time.
It is very suitable for technical engineers to develop, debug instrumentation, after-sales engineers travel maintenance, etc.
1. Dual operating system
2. Support power supply output function
3. Support test power supply function
4. Support over power protection
5. LCD high definition display
6. Automatic calibration
7. Multi-parameter simultaneous display
8. Support power saving mode
9. Three voltage input methods
10. Support voltage and current calibration
1. Product name: XY-LUP Boost Buck Converter Voltmeter Ammeter;
2. Model: XY-LUP;
3. Work Voltage: DC 3.5V-12V;
4. Output Voltage:DC 1.2V-24V;
5. Output Power:3W(MAX);
Maximum output power within 2W when output DC 1.2V~2V;
Maximum output power within 3W when output DC 2V~20V;
Maximum output power within 2.5W when output DC 20V~24V;
6. Output voltage accuracy:+/-0.5%
7. Output voltage accuracy:+/-1%
8. Measure voltage range: DC 0~35V
9. Measure current range:0~3A
10. Measure power range:0~110W
11. Measure battery capacity range:0~9999Ah
12. Discharging time:0~100hours
13. Work Temperature:-40℃~85℃;
14. Work Humidity:0%~95%RH;
15. Size:77*33*16mm;
Mode Switching:
1. The default is the Power Output Mode PER at first;
2. Keep press button ‘ON/OFF’ to switch mode;
3. When power is removed, the module can remember the current operating mode. The default work will be the same mode when power on at next time.
Power Output Mode PER:
1. Input from standard USB male socket, Micro USB female socket and ‘VIN+/VIN-’;
2. The output from ‘OUT+’ and ‘OUT-'.The ‘COM’ terminal can not be used at PER mode.
3. Rotate the potentiometer to adjust the output voltage;
4. There is a symbol ‘OUT’ when working in PER mode;
5.Terminal ‘COM’ unavailable at PER mode;
6. Short press button ‘ON/OFF’ to turn ON or OFF output voltage. At this time, the screen will display 0V.
7. Keep press button ‘ON/OFF’ for 2 seconds to switch display output current or output power at the second line.
8. Keep press button ‘ON/OFF’ for 5 seconds to turn ON or OFF display screen backlight. But the module can output voltage normally.
9. Keep press button ‘ON/OFF’ for 10 seconds to turn switch work mode PER or VAH.
10. The module supports over-power protection. If the rated power is exceeded, the module will automatically stop output voltage and the LCD will display ‘OPP’ and flash.
11. The module does not support reverse connection protection, please do not short circuit and reverse.
Calibrate Voltage/Current:
1. Calibrate Voltage: Keep press button ‘ON/OFF’ before power ON and then power ON and release button. Automatically enter calibration mode after 5 seconds. The voltage display will be flashing. Short press button to adjust and calibration voltage. Adjustment range is -0.2V~0.2V. Enter current calibration mode if keep press button for 2 seconds.
2. Calibrate Current: Enter current calibration mode if keep press button for 2 seconds after Calibrate Voltage. The current display will be flashing. Short press button to adjust and calibration voltage. Adjustment range is -0.02A~0.02A.Automatically save parameters and return to the normal display interface if keep press button for 5 seconds.
3. User needs to repeat the correction multiple times. If the voltage(current) error exceeds 0.2V(0.02A).
4. For example Change 12V to 12.6V:
4.1. First calibration: Change 12V to 12.2V
4.2. Second calibration: Change 12.2V to 12.4V
4.3. Third calibration: Change 12.4V to 12.6V
Use steps:
1. Connect to power supply from the input terminal;
2. Set work mode by keep press button ‘ON/OFF’ for 10second;
3. Connect load or Device Voltage;
4. Rotate potentiometer to change output voltage if work in PER mode;
5. Short press button ‘ON/OFF’ to switch parameter display;
6. Test and use.
1. Ordinary low power supply;
2. Voltmeter;
3. Ammeter;
4. Battery capacity tester;
5. Battery load capacity tester;
Note Please:
1. The module does not support reverse connection protection, please do not short circuit and reverse.
2. Adjust the working mode before use.
3. USB just can input DC 5V. User needs input from ‘VIN+’ and ‘VIN-’ if input 3.5V-12V.
Package includes:
1 x Boost Buck Converter Voltmeter Ammeter

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