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Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator
| Hersteller : | Intersil Corporation (Renesas Electronics) |
|---|---|
| Verpackung/Behälter : | QFN |
| Produkt der Kategorien : | Integrierte Schaltungen (ICs) |
| Datasheet: | ISL8022 Datasheet (PDF) |
| RoHs Status: | Lead free/RoHS Compliant |
| Lagerbestand: | 295 |
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ISL8022 Beschreibung
The ISL8022 is a high efficiency, dual synchronous step-down DC/DC regulator that can deliver up to 2A/1.7A continuous output current per channel. The channels are 180� out-of-phase for input RMS current and EMI reduction.The supply voltage range of 2.8V to 5.5V allows the use of a single Li+ cell, three NiMH cells or a regulated 5V input. The current mode control architecture enables very low duty cycle operation at high frequency with fast transient response and excellent loop stability. The ISL8022 operates at 2.25MHz switching frequency allowing the use of small, low cost inductors and capacitors. Each channel is optimized for generating an output voltage as low as 0.6V. The ISL8022 has a user configurable mode of operation-forced PWM mode and PFM/PWM mode. The forced PWM mode operation reduces noise and RF interference while the PFM mode operation provides high efficiency by reducing switching losses at light loads. In PFM mode of operation, both channels draw a total quiescent current of only 40μA hence enabling high light load efficiency in order to maximize battery life. The ISL8022 offers a 1ms Power-Good (PG) to monitor both outputs at power-up. When shutdown, ISL8022 discharges the outputs capacitor. Other features include internal digital soft-start, enable for power sequence, overcurrent protection, and thermal shutdown. The ISL8022 is offered in a 4mmx3mm 12 Ld DFN package with 1mm maximum height. The complete converter occupies less than 1.8cm2 area.
Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck RegulatorThe is a high efficiency, dual synchronous step-down DC/DC regulator that can deliver to 2A/1.7A continuous output current per channel. The channels are 180� out-of-phase for input RMS current and EMI reduction.The supply voltage range to 5.5V allows the use of a single Li+ cell, three NiMH cells or a regulated 5V input. The current mode control architecture enables very low duty cycle operation at high frequency with fast transient response and excellent loop stability. The ISL8022 operates at 2.25MHz switching frequency allowing the use of small, low cost inductors and capacitors. Each channel is optimized for generating an output voltage as low as 0.6V. The ISL8022 has a user configurable mode of operation-forced PWM mode and PFM/PWM mode. The forced PWM mode operation reduces noise and RF interference while the PFM mode operation provides high efficiency by reducing switching losses at light loads. In PFM mode of operation, both channels draw a total quiescent current of only 40�A hence enabling high light load efficiency in order to maximize battery life. The ISL8022 offers a 1ms Power-Good (PG) to monitor both outputs at power-up. When shutdown, ISL8022 discharges the outputs capacitor. Other features include internal digital soft-start, enable for power sequence, overcurrent protection, and thermal shutdown. The ISL8022 is offered 12 Ld DFN package with 1mm maximum height. The complete converter occupies less than 1.8cm2 area.
FeaturesDual 2A/1.7A High Efficiency Synchronous Buck Regulator with to 97% Efficiency, Low (40�A) 180� Out-of-Phase Start-up with Pre-biased Output Selectable Forced PWM Mode and PFM Mode External Synchronization to 8MHz Negative Current Detection and Protection 100% Maximum Duty Cycle for Lowest Dropout Internal Current Mode Compensation Peak Current Limiting, Hiccup Mode Short Circuit Protection and Over-Temperature Protection Pb-Free (RoHs Compliant)
DC/DC POL Modules �C/�P, FPGA and DSP Power Plug-in DC/DC Modules for Routers and Switchers Test and Measurement Systems Li-ion Battery Powered Devices Bar Code Readers
AN1554 "ISL8022EVAL1Z Dual 2A/1.7A Low Quiescent Current 2.25MHz High Efficiency Synchronous Buck Regulator"
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2010. All Rights Reserved All other trademarks mentioned are the property of their respective owners.
Typical ApplicationsFIGURE 1. TYPICAL APPLICATION DIAGRAM - DUAL INDEPENDENT OUTPUTS
In Table 1, the minimum output capacitor value is given for different output voltage to make sure the whole converter system is stable. Output capacitance should increase to support faster load transient requirement.
1m s DELAY E R O-C IN G SYNC SHUTDO W N VCC 27pF 250k SHUTDO IN 2 EAMP + COMP IC CO NTROLLER E RTechnische Parameter
- Hersteller
- INTERSIL
- Verpackung
- Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube
- RoHs Status
- Lead free/RoHS Compliant
- Verpackung/Behälter
- QFN
ISL8022 Verwandte besondere
Bewertungen und Rezensionen (1)
- 5 / 5
- 5 Stars 100%
- 4 Stars 0%
- 3 Stars 0%
- 2 Stars 0%
- 1 Stars 0%
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**KHIL***2018-10-02
Super ! Top Ware ! Immer wieder gerne !
- Fracht:
Fracht & Zahlung
Fracht
- Liefer-Type
- Schiff Fee
- Lead Time
- DHL
- $20.00-$40.00 (0.50 KG)
- 2-5 days
- Fedex
- $20.00-$40.00 (0.50 KG)
- 3-7 days
- UPS
- $20.00-$45.00 (0.50 KG)
- 2-5 days
- TNT
- $25.00-$65.00 (0.50 KG)
- 2-5 days
- EMS
- $25.00-$45.00 (0.50 KG)
- 5-14 days
- REGISTERED AIR MAIL
- $2.00-$3.00 (0.10 KG)
- 7-30 days
Processing Time:Shipping fee depend on different zone and country.
Zahlung
- Zahlungsbedingungen
- Hand Fee
- Wire Transfer
- charge US$30.00 banking fee.
- Paypal
- charge 4.0% service fee.
- Credit Card
- charge 3.5% service fee.
- Western Union
- charge US$0.00 banking fee.
- Money Gram
- charge US$0.00 banking fee.
Wir bieten qualitativ hochwertige Produkte, aufmerksamen Service und nach dem Verkauf Garantie
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Wir haben reiche Produkte, können Ihre verschiedenen Bedürfnisse erfüllen.
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Mindestbestellmenge beginnt 1pcs.
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Niedrigsten Transportgebühr beginnt bei US $ 2,00.
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90 Tage Qualitätsgarantie für alle Produkte.
Verpackung
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Step1: 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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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.
Garantien
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.
FAQ:
- Q: How does Jotrin guarantee that ISL8022 is the original manufacturer or agent of INTERSIL?
- We have a professional business development department to strictly test and verify the qualifications of INTERSIL original manufacturers and agents. All INTERSIL suppliers must pass the qualification review before they can publish their ISL8022 devices; we pay more attention to the channels and quality of ISL8022 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of ISL8022 chips? Including INTERSIL original factory information, application, ISL8022 pictures?
- You can use Jotrin's intelligent search engine, or filter by Integrierte Schaltungen (ICs) category, or find it through Intersil Corporation (Renesas Electronics) Information page.
- Q: Are the INTERSIL's ISL8022 price and stock displayed on the platform accurate?
- The INTERSIL's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ISL8022, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
- Q: Can I place an order offline?
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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. - 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?
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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 ISL8022?
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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 ISL8022 we delivered, we will accept the replacement or return of the ISL8022 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 ISL8022.
(3)The ISL8022 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 ISL8022 datasheet pdf, ISL8022 pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
Intersil Corporation (Renesas Electronics)
- 1.Buck Regulators address multiple voltage rail requirements.
- 2.Power Module delivers up to 40 A and 100 W.
- 3.PMICs optimized to support subsystem peripheral power requirements
- 4.DC/DC module simplifies power supply design
- 5.Buck controller supports new levels of flexibility for high-current designs
- 6.Digital power monitor capable of industry’s widest common mode input voltage range
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