Products > Integrated Circuits (ICs) > LT4363MPMS-2

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High Voltage Surge Stopper with Current Limit

  • Package/Case :
  • DFN12
  • Product Categories :
  • Hot Swap Controllers ; High Voltage Hot Swap Controllers
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 64


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LT4363MPMS-2 Product Details

The LT4363MPMS-2 surge stopper protects loads from high voltage transients. It regulates the output during an overvoltage event, such as load dump in vehicles, by controlling the gate of an external N-channel MOSFET. The output is limited to a safe value allowing the loads to continue functioning. The LT4363MPMS-2 also monitors the voltage drop between the SNS and OUT pins to protect against overcurrent faults. An internal amplifier limits the voltage across the current sense resistor to 50mV. In either fault condition, a timer is started inversely proportional to MOSFET stress. Before the timer expires, the FLT pin pulls low to warn of an impending power down. If the condition persists, the MOSFET is turned off. The LT4363-1 remains off until reset whereas the LT4363-2 restarts after a cool down period.

Two precision comparators can monitor the input supply for overvoltage (OV) and undervoltage (UV) conditions. When the potential is below the UV threshold, the external MOSFET is kept off. If the input supply voltage is above the OV threshold, the MOSFET is not allowed to turn back on. Back-to-back MOSFETs can be used in lieu of a Schottky diode for reverse input protection, reducing voltage drop and power loss. A shutdown pin reduces the quiescent current to less than 7μA during shutdown.


  • Withstands Surges Over 80V with VCC Clamp
  • Wide Operating Voltage Range: 4V to 80V
  • Adjustable Output Clamp Voltage
  • Fast Overcurrent Limit: Less Than 5μs
  • Reverse Input Protection to –60V
  • Adjustable UV/OV Comparator Thresholds
  • Low 7μA Shutdown Current
  • Shutdown Pin Withstands –60V to 100V
  • Adjustable Fault Timer
  • Controls N-Channel MOSFET
  • Less Than 1% Retry Duty Cycle During Faults, LT4363-2
  • Available in 12-Pin (4mm × 3mm) DFN, 12-Pin MSOP or 16-Pin SO Packages


  • Automotive/Avionic Surge Protection
  • Hot Swap™/Live Insertion
  • High Side Switch for Battery Powered Systems
  • Intrinsic Safety Applications

LT4363MPMS-2 Pinout
(Picture: Pinout)

LT4363MPMS-2 Block Diagram
(Picture: Diagram)

Technical Parameters

  • Circuit Breakers
  • 1
  • Vin Range
  • 4V to 80V
  • Circuit Breaker Threshold
  • 50mV
  • Circuit Breaker Accuracytyp | %
  • 10
  • Isupplytyp | A
  • 700µ
  • Features
  • Surge Stopper
  • Comments
  • Ride-through protection, Adjustable output-clamp and circuit-breaker with timer, Shutdown mode, Latc

LT4363MPMS-2 Documents

  • LT4363 Technical Documentation/Data sheet

LT4363MPMS-2 Related Products

Ratings and Reviews (1)

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  • **ngo ***

    Alles prima... Gerne wieder DANKE

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Estimated Delivery Time: Jan 27 - Feb 01 days (choose Expedited at checkout).

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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

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    Step3: Anti-Static Bag

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    Step4: Individual Packaging

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    Step5: Packaging Boxes

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    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 LT4363MPMS-2 is the original manufacturer or agent of LINEAR?
We have a professional business development department to strictly test and verify the qualifications of LINEAR original manufacturers and agents. All LINEAR suppliers must pass the qualification review before they can publish their LT4363MPMS-2 devices; we pay more attention to the channels and quality of LT4363MPMS-2 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LT4363MPMS-2 chips? Including LINEAR original factory information, Hot Swap Controllers ; High Voltage Hot Swap Controllers application, LT4363MPMS-2 pictures?
You can use Jotrin's intelligent search engine, or filter by Hot Swap Controllers ; High Voltage Hot Swap Controllers category, or find it through Linear Technology Corp. (ADI) Information page.
Q: Are the LINEAR's LT4363MPMS-2 price and stock displayed on the platform accurate?
The LINEAR's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for LT4363MPMS-2, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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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.
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TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
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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 LT4363MPMS-2?
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 LT4363MPMS2 we delivered, we will accept the replacement or return of the LT4363MPMS-2 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 LT4363MPMS-2.
(3)The LT4363MPMS-2 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 LT4363MPMS-2 datasheet pdf, LT4363 pin diagram?
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Linear Technology Corp. (ADI)

Linear Technology designs, manufactures and markets a wide range of high performance standard integrated circuits. Product applications include telecommunications, cellular phones, networking products, notebook and desktop computers, video/multimedia, industrial instrumentation, automotive electroni...

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