Products > Integrated Circuits (ICs) > Power Management ICs > NR110K
NR110K 8-SOIC (0.173, 4.40mm Width)
  • NR110K
  • NR110K 0
  • NR110K 1
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Conv DC-DC 8V to 31V Step Down Single-Out 0.8V to 24V 4A 8-Pin HSOP

Manufacturer :
Sanken Electric Co., Ltd
Package/Case :
8-SOIC (0.173, 4.40mm Width)
Product Categories :
DC/DC Converter
RoHs Status:
Lead free / RoHS Compliant

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NR110K Product Details

NR110K is a step-down regulator IC with built-in power MOSFET.With the current mode control, ultra low ESR capacitors such as ceramic capacitors can be used. The ICs have protection functions such as Over-Current Protection (OCP), Under-Voltage Lockout (UVLO) and Thermal Shutdown (TSD). In order to protect the IC against in-rush current at start-up, the soft start function is provided. The soft start time can be set by connecting external capacitors.A function to turn on/off by external signals is provided and by sending external signals to the EN terminal, NR110K can be turned on/off. The setting value for OCP can be adjustable by the external resistor.Few external components required with built-in phase compensation circuit. This device is supplied in a compact and thin HOSP 8-pin package with heat slug on the back side.To increase efficiency under light load conditions, operating frequency changes on a certain load current condition.


  • Up to 90% Efficiency
  • Up to 70% Efficiency at light load  (VIN=12V/Vo=5V/Io=30mA)
  • Current mode PWM control
  • Output current: Up to 4.0A
  • Operating Frequency: 350kHz
  • Low ESR capacitors such as ceramic capacitors can be used for output.
  • Built-in protection circuit   Overcurrent protection (OCP)   Drooping type: auto restart   Thermal shutdown (TSD): auto restart   Undervoltage lockout (UVLO) circuit
  • Built-in phase compensation, with no need for external components
  • Adjustable Soft-Start with an external capacitor
  • External ON/OFF function
  • HSOP8 package


  • On-board local power supplies
  • Power supply for OA equipment
  • For stabilization of the secondary-side output voltage of regulators
  • Power supply for telecommunication

NR110K Block Diagram
(Picture: Diagram)

Technical Parameters

Function Step-Down Voltage Output (Max) 24V
Output Configuration Positive Current Output 4A
Topology Buck Frequency Switching 350kHz
Output Type Adjustable Synchronous Rectifier No
Number of Outputs 1 Operating Temperature -40??C ~ 85??C (TA)
Voltage Input (Min) 8V Mounting Type Surface Mount
Voltage Input (Max) 31V Package / Case 8-SOIC (0.173, 4.40mm Width) Exposed Pad
Voltage Output (Min/Fixed) 0.8V Supplier Device Package 8-HSOP

NR110K Documents

NR110K Related Products

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Estimated Delivery Time: Jan 28 - Feb 02 days (choose Expedited at checkout).

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Shipping Type Ship Fee Lead Time

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7-30 days

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    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.


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  • Step2:Vacuum packaging

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  • Step3:Anti-static bag

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  • Step4:Individual packaging

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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.


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 NR110K is the original manufacturer or agent of Sanken?
We have a professional business development department to strictly test and verify the qualifications of Sanken original manufacturers and agents. All Sanken suppliers must pass the qualification review before they can publish their NR110K devices; we pay more attention to the channels and quality of NR110K products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of NR110K chips? Including Sanken original factory information, DC/DC Converter application, NR110K pictures?
You can use Jotrin's intelligent search engine, or filter by ICs ; Power Management ICs ; DC/DC Converters category, or find it through Sanken Electric Co., Ltd Information page.
Q: Are the Sanken's NR110K price and stock displayed on the platform accurate?
The Sanken's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for NR110K, 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 NR110K?
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 NR110K we delivered, we will accept the replacement or return of the NR110K 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 NR110K.
(3)The NR110K 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 NR110K datasheet pdf, NR110K pin diagram?
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Sanken Electric Co., Ltd

Sanken Electric Co., Ltd carried out semiconductor research and development, and applied semiconductor technology to power products. With the development of semiconductor industry, sanken electric has...
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