LM7805 multi-line power module 6~9V to 5V/3.3V/2.5V/1.8V/1.2V voltage output function demo board
LM7805 multi-line power module 6~9V to 5V/3.3V/2.5V/1.8V/1.2V voltage output function demo board image 1
LM7805 multi-line power module 6~9V to 5V/3.3V/2.5V/1.8V/1.2V voltage output function demo board image 2

LM7805 multi-line power module 6~9V to 5V/3.3V/2.5V/1.8V/1.2V voltage output function demo board

US $5.07 -15%

US $4.41



The layout is regular, the layout and wiring are strictly in accordance with the power circuit design, and the materials are generous. It has 5V, 3.3V, 2.5V, 1.8V, 1.2V and other multi-channel linear power output, which is suitable for student competition module and personal project development.


LM7805 module shipping list

Physical module + PDF information + after-sale technical support + electrostatic bag packaging + shockproof foam


(1) The module interface of our store is clear and the performance is stable. Please combine the data provided by our store to perform functional verification under the corresponding experimental conditions.

(2) The basic parameters of this module are in the details page, providing PDF information of the module information, and no engineering files are provided, please inform the buyer, if you have any operation problems, you can consult customer service.

(3) Buyers, before using the module, please read the details page of this module to understand the power supply and use restrictions, to avoid damage to the module due to improper operation.

(4) Our modules are guaranteed to provide real module parameters, functions and pictures, and all modules will be shipped after detection.

Please contact customer service after purchase, we will send module information to your email



Module parameters


Module model: LM7805

Module type: Multi-line linear voltage regulator

Input voltage: 6V-9V

Output voltage: multi-channel; 5V, 3.3V, 2.5V, 1.8V, 1.2V

Output current: 1A (MAX); @ 5V

Input and output pressure difference: output power 5W (5V / 1A); for reference only

Load adjustment rate: 2%; for reference only

Voltage regulation rate: 1%; for reference only

Static power consumption: 14mA; mostly LED power indicator power consumption

Switching frequency: none; linear power supply does not have this parameter

Output ripple: 3mV; no load @ 5V

Module enable: None

Module protection: multiple; reverse connection protection

Module features: multiple; multiple output; low noise, low ripple; with input power indicator

Module applications: multiple; precision operational amplifier power supply, high-speed / high-precision data converter power supply, MCU power supply, etc.

Module weight: 22g

Module size: 73 × 41 × 15; length × width × height (mm)

Module heating: the greater the load, the greater the heating

Working temperature: 0-125 ℃

Module interface: input: DC5.5 * 2.1, 5.08-2P; output: USB-A female, 2.54 double-row pin (straight) 2 * 15P



Module description


The module uses the most commonly used LM7805 and AMS1117 series chips; easy to use; regular layout; layout and wiring in strict accordance with the design specifications of the power supply circuit; the materials are exquisite; 5V, 3.3V, 2.5V, 1.8V, 1.2V multi-channel low ripple Linear power output. It is suitable for the power requirements of student learning competitions and company or individual project development. Generally, it can be used for power supply of precision operational amplifier, high-speed / high-precision data converter, MCU power supply, etc.


Precautions for using the module


(1) The heating of the linear power supply is mainly determined by the output voltage difference and the load current. Please choose and use the power supply module reasonably. Generally, you need to reserve 30% of the surplus.

(2) When the output current is large, the heat dissipation capacity can be appropriately increased, such as air cooling.

(3) The module belongs to the step-down type module, the input voltage needs to be greater than the output 1V or more to stabilize the output.

(4) The module generates heat during use, please purchasers to enhance heat dissipation according to the actual situation. When carrying a large load, the heat sink can be appropriately increased.

(5) When using the module, it is recommended to add 100uF or larger electrolytic capacitors to the input and output terminals; pay attention to the polarity of the positive and negative power supplies when adding capacitors; the electrolytic capacitors added to the negative power supply should be the positive electrode of the capacitor connected to GND; the negative electrode of the capacitor connected to the negative output of the module .

(6) It is recommended to use our transformer and rectifier filter module, which can be combined to form a precision power supply.


Frequently asked questions


Q: Can the power supply of the module be lower than 6V?

A: No. The module is a step-down type power supply, and the power supply must be greater than 6V module to output normally.

Q: Why are there two types of power supply interfaces for the module?

A: In order to meet the needs of different users, the store has designed two power supply interfaces; users can choose one to use according to their own needs.


About Elecdemo:

Elecdemonded in 2015 , Elecdemo is a well-established technology company that integrates supply , R & D , prodund sales , supporting agents , franchises , customization and bulk purchases . We are committed to provid our customers with the best electronic functional module products at the lowest price . We have a professional design and production team to providecustomer service to help our customers greatly improve the efficiency of development,learn and research.


About Transpiration:

1. Global shipping, (except for some countriesand APO/ FPO)

2. Import duties: Taxes are not included in theprice or shipping costs. Customs fees are the responsibility of the buyer.

3. If the package is not delivered within 30 days. please contact us. We will help you solve the problem.


About Delivery:

1. We will process the order in time after the payment is confirmed. Due to the difference in inventory status and time, we will choose to ship from our first warehouse for fast delivery.

2. We only send to the confirmed order address. Your order address must match your shipping address.

3.Service transit time is provided by the carrier, excluding weekends and holidays. Delivery time may vary, especially on holidays.


About Guarantee:

1.  manufacturers limited warrantyon defective items(excluding items damagedand/or misused after receipt). The accessory is backed by a 3 month warranty

2. The displayed image is taken in real time, but due to different production batches, thecolor may be different. The picture is for reference only, and the actual object is subjectto the final one

3. The defective item must be reported and reurned within the warranty period(if possible,in the original packaging

4. If the product features do not match the advertisement, we will bear all shipping costs.


About Feedback:

1. If you are satisfied, please leave 5 stars positive feedback, we are very honored to receivea generous real assessment and photos, th !!!!

2. For any product or shipping problems, please contact us before opening a dispute orleaving any feedback/negative feedback, we will try our best to solve the problem untilyou are satisfied.


Returns and Refunds:

1. You have 7 days to contact us and you will not be able to return from the receipt date after30 days. If the item has been owned by you for more than 7 days, it will be considered usedand we will not refund or replace it. with no exceptions! Return shipping costs are theresponsibility of the buver.

2. All returned items must be in original packaging, you must provide us with a shippingtracking number.

3. If there is a return, please contact us in advance, we will help you solve it. If it cannot besolved online, we will accept your return and refund it to you.




Very nice thing and externally, and when you take in hands. Unfortunately, the supply slightly darkened the first impression, because. The fee was faulty. But the seller instantly returned the money and I ordered the second time. Packing in case of nuclear war, fast delivery. The board itself is sealed in the antistatic, complete with fastening bushings and feeding cable. The fee is working and I am very pleased. I wish prosperity to this store and great sales to the honest seller!

2020-04-22 09:37:00