Продукция > Интегральные схемы (ИС) > ИС для управления питанием > ADP1821ARQZ-R7

Изображения приведены только для справки, см. Технические характеристики изделия.


DC/DC Cntrlr Dual-OUT Step Down 1200kHz 16-Pin QSOP T/R

Производитель : Analog Devices, Inc
Упаковка/Ящик : QSOP-16
категорий продукта : Step-Down (Buck) Regulators ; External Power Switch Buck Controllers
Datasheet: ADP1821ARQZ-R7 Datasheet (PDF)
RoHs Status: Rohs
Наличность: 823


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ADP1821ARQZ-R7 информация о продукте

The ADP1821ARQZ-R7 is well suited for a wide range of high power applications, such as DSP and processor core power in telecommunications, medical imaging, high performance servers, and industrial applications. It operates from a 3.7 V to 5.5 V supply with a power input voltage ranging from 1.0 V to 24 V.

The ADP1821ARQZ-R7 operates at a pin-selectable, fixed switching frequency of either 300 kHz or 600 kHz, minimizing external component size and cost. For noise sensitive applications, it can be synchronized to an external clock to achieve switching frequencies between 300 kHz and 1.2 MHz. The ADP1821ARQZ-R7 includes soft start protection to limit the inrush current from the input supply during startup, reverse current protection during soft start for precharged outputs, as well as a unique adjustable lossless current-limit scheme utilizing external MOSFET sensing.

The ADP1821ARQZ-R7 operates over the –40°C to +125°C junction temperature range and is available in a 16-lead QSOP.



  • Wide power-input voltage range: 1 V to 24 V
  • Chip supply voltage range: 3.7 V to 5.5 V
  • Wide output voltage range: 0.6 V to 85% of input voltage
  • 1% accuracy, 0.6 V reference voltage
  • All N-channel MOSFET design for low cost
  • Fixed-frequency operation 300 kHz, 600 kHz, or synchronized operation up to 1.2 MHz
  • No current sense resistor required
  • Power-good output
  • Programmable soft start with reverse current protection
  • Soft start, thermal overload, current-limit protection
  • Undervoltage lockout
  • 10 μA shutdown supply current


  • Telecommunications and networking systems
  • Set-top boxes
  • Printers
  • Servers
  • Medical imaging systems
  • Microprocessor and DSP core power supplies
  • Mobile communication base stations

ADP1821ARQZ-R7 Pinout
(Картинка: Pinout)

ADP1821ARQZ-R7 Block Diagram
(Картинка: Diagram)

Технические параметры

  • Input Voltage
  • 3.7 V to 5.5 V
  • Switching Frequency
  • 300 kHz to 600 kHz
  • Output Voltage
  • 0.6 V to 20.4 V
  • Output Current
  • 20 A
  • Number of Outputs
  • 1
  • Maximum Operating Temperature
  • + 85 C
  • Mounting Style
  • Package / Case
  • QSOP-16
  • Minimum Operating Temperature
  • - 40 C
  • Packaging
  • Reel
  • Series
  • ADP1821
  • Shutdown
  • Yes

ADP1821ARQZ-R7 Datasheet

ADP1821ARQZ-R7 Связанные специальные

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Перевозка Больше
Estimated Delivery Time: Mar 10 - Mar 15 days (choose Expedited at checkout).

Перевозка & Оплата


  • Доставка типа
  • Гонорар корабля
  • Затягивание
  • $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

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    90 дней гарантия качества для всех продуктов.


  • 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 ADP1821ARQZ-R7 is the original manufacturer or agent of ADI?
We have a professional business development department to strictly test and verify the qualifications of ADI original manufacturers and agents. All ADI suppliers must pass the qualification review before they can publish their ADP1821ARQZ-R7 devices; we pay more attention to the channels and quality of ADP1821ARQZ-R7 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of ADP1821ARQZ-R7 chips? Including ADI original factory information, Step-Down (Buck) Regulators ; External Power Switch Buck Controllers application, ADP1821ARQZ-R7 pictures?
You can use Jotrin's intelligent search engine, or filter by Step-Down (Buck) Regulators ; External Power Switch Buck Controllers category, or find it through Analog Devices, Inc Information page.
Q: Are the ADI's ADP1821ARQZ-R7 price and stock displayed on the platform accurate?
The ADI's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ADP1821ARQZ-R7, 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 ADP1821ARQZ-R7?
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 ADP1821ARQZR7 we delivered, we will accept the replacement or return of the ADP1821ARQZ-R7 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 ADP1821ARQZ-R7.
(3)The ADP1821ARQZ-R7 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 ADP1821ARQZ-R7 datasheet pdf, ADP1821 pin diagram?
Need any After-Sales service, please feel free contact us: sales@jotrin.com

Analog Devices, Inc

Analog Devices, Inc. was founded by two MIT graduates, Ray Stata and Matthew Lorber in 1965. The same year, the company released its first product, the model 101 op amp, which was a hockey-puck sized module used in test and measurement equipment. In 1967, the company published the first issue of its...
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