Products > Integrated Circuits (ICs) > NB680GD-Z

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Voltage Regulators - Switching Regulators 26V Fixed 3.3 V-8A Sync Buck Converter

Manufacturer : Monolithic Power Systems
Package/Case : QFN-12
Product Categories : Vin (Max) 20V to 29V
Datasheet: NB680GD-Z Datasheet (PDF)
RoHs Status: Lead free/RoHS Compliant
In-stock: 58594


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NB680GD-Z Product Details

The NB680GD-Z is a fully integrated, high-frequency, synchronous, rectified, step-down, switch-mode converter with a fixed 3.3 V Vout. It offers a very compact solution to achieve an 8 A continuous output current and a 10 A peak output current over a wide input supply range with excellent load and line regulation. The NB680GD-Z operates at high efficiency over a wide output current load range based on MPS proprietary switching loss reduction technology and internal low Ron power MOSFETs. Adaptive constant-on-time (COT) control mode provides fast transient response and eases loop stabilization. The DC auto-tune loop provides good load and line regulation.NB680GD-Z provides a fixed 3.3 V LDO, which can power the external peripheries, such as the keyboard controller in the laptop.Also, a 250 kHz CLK is available; its output can drive an external charge pump, generating gate drive voltage for the load switches without reducing the main converter’s efficiency. Full protection features include OC limit, OVP, UVP, and thermal shutdown. NB680GD-Z requires a minimum number of external components and is available in a QFN 2mm x 3mm package.



  • Wide 4.8 V to 26 V Operating Input Range
  • Fixed 3.3 V Vout
  • Ultrasonic Mode with Fs over 25 kHz
  • 100 μA Low Quiescent Current
  • 8 A Continous Output Current
  • 10 A Peak Output Current
  • Adaptive COT for Fast Transient
  • DC Auto-Tune Loop
  • Stable with POSCAP and Ceramic Output Capacitors
  • 250 kHz CLK for External Charge Pump
  • Built-In 3.3 V, 100 mA LDO with Switch Over
  • 1% Reference Voltage
  • Internal Soft Start
  • Output Discharge
  • 700 kHZ Switching Frequency
  • OCL, OVP, UVP, and Thermal Shutdown.
  • Latch-Off Reset via EN or Power Cycle.
  • QFN 2mm x 3mm Package

NB680GD-Z Block Diagram
(Picture: Diagram)

Technical Parameters

  • Manufacturer
  • MPS
  • Packing
  • Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
  • RoHs Status
  • Lead free/RoHS Compliant
  • Package/Case
  • QFN-12

NB680GD-Z Datasheet

NB680GD-Z Related Products

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Estimated Delivery Time: Dec 06 - Dec 11 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.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

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 NB680GD-Z is the original manufacturer or agent of MPS?
We have a professional business development department to strictly test and verify the qualifications of MPS original manufacturers and agents. All MPS suppliers must pass the qualification review before they can publish their NB680GD-Z devices; we pay more attention to the channels and quality of NB680GD-Z products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of NB680GD-Z chips? Including MPS original factory information, Vin (Max) 20V to 29V application, NB680GD-Z pictures?
You can use Jotrin's intelligent search engine, or filter by Vin (Max) 20V to 29V category, or find it through Monolithic Power Systems Information page.
Q: Are the MPS's NB680GD-Z price and stock displayed on the platform accurate?
The MPS's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for NB680GD-Z, 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 NB680GD-Z?
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 NB680GDZ we delivered, we will accept the replacement or return of the NB680GD-Z 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 NB680GD-Z.
(3)The NB680GD-Z 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 NB680GD-Z datasheet pdf, NB680 pin diagram?
Need any After-Sales service, please feel free contact us:

Monolithic Power Systems

Monolithic Power Systems (MPS) is a high-performance analog semiconductor company headquartered in San Jose, California. MPS has three core strengths; deep system level and application knowledge, strong analog design expertise and innovative proprietary process technology. These combined advantages...
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