lmages are for reference only See Product Specifications

Microchip Technology LR8K4-G

Part No.:
Microchip Technology
TO-252-3, DPak (2 Leads + Tab), SC-63
In Stock:
  Add To Cart
For more detailed including pricing and shipping
Quick response, quick quotation
Flash shipment, no worries after sales
Original channel, guarantee of the authentic products

Please send RFQ , we will respond immediately.

Part Number
Email / phone number*
Contact Name / Company Name
  • Purchase and inquiryPurchase and inquiry

    LR8K4-G this integrated circuit is available in factory sealed anti static packs. at Please read product page below detail information. including LR8K4-G price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for LR8K4-G to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

    Purchase in

    There is no doubt that you may place an order without registering to

    We strongly suggest you sign in our shop before purchasing as you can track your order real-time tracking.

    Means of Payment in

    For your convenience, we support multiple payment methods in USD, including PayPal, Credit Card, wire transfer. and Alipay.

    RFQ (Request for Quotations) in

    It is recommended to acquire for quotations to get the latest prices and inventories about the parts.

    Our sales will reply to your request by email within 24 hours.

    Warm reminder

    1. You'll receive an order information email in your email inbox. (Please remember to check the spam folder if you didn't hear from us).

    2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

    Shipping & Handling

    Shipping fee starts at $35, but some countries will exceed $35. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)

    The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and countries.

    Shipping Method

    Currently, our products are shipped through DHL, FedEx, SF, UPS and China Post.

    Order Tracking for International Orders

    Once your order has been shipped, the tracking number will be sent to the email address registered to your account. This information can also be viewed when logged into your account in the "my account" page.


    LR8K4-G Typical application Circuitry


    The LR8K4-G is a high-voltage adjustable linear regulator, commonly used in situations where high input voltage and low output voltage is required. This Microchip's IC can manage an input voltage range of 12V to 440V and offers an adjustable output voltage from 1.20V to 440V. The following are the crucial circuit connection points:

    1. Input Pin (IN): Connect your input voltage source to the 'IN' pin. Remember that this input can handle up to 440V, so it is quite suitable for high voltage applications.

    2. Adjust Pin (ADJ): Using a resistor divider network, this pin adjusts the output voltage. Connect two resistors, one from the 'OUT' pin to the 'ADJ' pin and another from the 'ADJ' pin to the ground. The value of these resistors will determine the output voltage based on the formula given in the data sheet.

    3. Output Pin (OUT): The 'OUT' pin provides the regulated output voltage. A capacitor should be connected from this pin to the ground to ensure stability. The value of the capacitor can typically start from 1uF, but refer to the data sheet for specific applications.

    4. Ground: The LR8K4-G is usually available in TO-252-3, DAK (2 Leads + Tab), SC-63 package, where the tab is typically connected to the ground. Make sure this is appropriately connected to your circuit's ground.

    5. Protection Diodes: Depending upon the application, protection diodes might be required between the 'ADJ' and 'OUT' pins as well as between 'ADJ' and ground to protect the IC against possible voltage transients.

    Remember, in all cases involving the LR8K4-G or similar high voltage devices, care must be taken to follow safety precautions associated with high voltages. Also, always double-check your circuit and component values with the recommendations given in the Microchip LR8K4-G data sheet.

    LR8K4-G informationLR8K4-G information

    LR8K4-G FAQ

    1. How to order LR8K4-G on

    Currently, only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

    2. How does guarantee that LR8K4-G is from the original manufacturer or authorized agents?

    We have a professional and experienced quality control team to strictly verify and test the LR8K4-G. All suppliers must pass our qualification reviews before they can publish their products including LR8K4-G on; we pay more attention to the channels and quality of LR8K4-G products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

    3. Are the LR8K4-G price and inventory displayed accurate?

    The price and inventory of LR8K4-G fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

    4. What forms of payment are accepted?

    Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

    Warm Tips: Some orders in certain payment forms may require handling fee.

    5. How is the shipping arranged?

    Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

    Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

    Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

    6. What is the process for return or replacement of LR8K4-G?

    All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the LR8K4-G we delivered, we will accept the replacement or return of the LR8K4-G only when all of the below conditions are fulfilled:

    (1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

    (2)We are informed of the defect described above within 90 days after the delivery of LR8K4-G.

    (3)The PartNo is unused and only in the original unpacked packaging.

    Two processes to return the products:

    (1)Inform us within 90 days

    (2)Obtain Requesting Return Authorizations

    7.How to contact us to get technical supports, such as LR8K4-G pin diagram, LR8K4-G datasheet?

    If you need any after-sales service, please do not hesitate to contact us.

    Hot Products







    Contact Us