Products > Integrated Circuits (ICs) > LP3773
  • LP3773

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Low power offline constant current / constant voltage PSR controller

  • Manufacturer :
  • /
  • Package/Case :
  • SOP-8
  • Product Categories :
  • Integrated Circuits (ICs)
  • RoHs Status:
  • Lead free/RoHS Compliant
  • Marking Code:
  • LP3773
  • In-stock:
  • 61310


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LP3773 Product Details


LP3773/4/5 is a high performance AC/DC power controller for battery chargers and adapters with built-in VCBO

750V power transistor. The device uses pulse frequency modulation (PFM) to establish discontinuous conduction mode (DCM)
Flyback power supply.
LP3773/4/5 provides precise constant voltage, constant current (CV / CC) does not require optocoupler and secondary control circuit
Adjustment. It also eliminates the need for loop compensation circuitry while maintaining good stability. LP3773/4/5 can achieve good
The regulation and higher average efficiency satisfy the no-load loss of less than 30mW.
LP3773/4/5 has a proprietary output cable voltage drop compensation function, that is, output line loss compensation, line loss compensation can be adjusted
The FB divider resistor is adjusted to adjust the maximum compensation amount to 12% of the output voltage, which can effectively compensate the output current at the output line.
Loss voltage drop on.

■Primary feedback control high precision constant current, constant voltage
■ 30mW standby power consumption
■ Built-in triode
■ Adjustable voltage drop compensation
■ Adjustable DC line compensation under constant current variation
■ Random frequency jitter modulation reduction system electromagnetic interference
■ Open circuit protection
■ Overvoltage protection
■ Short circuit protection
■ Over temperature protection
■ Adjustable line loss compensation

LP3773 Pin Diagram
(Picture:Pinout / Diagram)

Technical Parameters

  • Manufacturer
  • Packing
  • Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
  • RoHs Status
  • Lead free/RoHS Compliant
  • Package/Case
  • SOP-8

LP3773 Related Products

Ratings and Reviews (1)

  • 5 / 5
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  • **orma***

    All PERFECT and fast shipping! Tnx a lot.

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Shipping More
Estimated Delivery Time: Sep 24 - Sep 29 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that LP3773 is the original manufacturer or agent ?
We have a professional business development department to strictly test and verify the qualifications of original manufacturers and agents. All suppliers must pass the qualification review before they can publish their LP3773 devices; we pay more attention to the channels and quality of LP3773 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LP3773 chips? Including original factory information, application, LP3773 pictures?
You can use Jotrin's intelligent search engine, or filter by Integrated Circuits (ICs) category, or find it through brand manufacturer page.
Q: Are the LP3773 price and stock displayed on the platform accurate?
The inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LP3773, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of LP3773?
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 LP3773 we delivered, we will accept the replacement or return of the LP3773 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 LP3773.
(3)The LP3773 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
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as LP3773 datasheet pdf, LP3773 pin diagram?
Need any After-Sales service, please feel free contact us:

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