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Synchronous Step Down Controller with Sourcing and Sinking LDO Regulator
| メーカー : | Renesas Technology Corp |
|---|---|
| パッケージ : | TQFN-28 |
| 製品 : | PMIC - Power Supply Controllers, Monitors |
| Datasheet: | ISL88550AIRZ-T Datasheet (PDF) |
| RoHs Status: | Rohs |
| 在庫: | 900 |
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ISL88550AIRZ-T 製品詳細
ISL88550AIRZ-T integrates a synchronous buck PWM controller to generate VDDQ, a sourcing and sinking LDO linear regulator to generate VTT, and a 10mA reference output buffer to generate VTTR. The buck controller drives two external N-Channel MOSFETs to generate output voltages down to 0.7V from a 2V to 25V input with output currents up to 15A. The LDO can source up to 2.5A and sink up to -2.0A continuously. Both the LDO output and the 10mA reference buffer output can be made to track the REFIN voltage via a built-in resistive divider. These features make the ISL88550AIRZ-T ideally suited for DDR memory applications in desktops, notebooks and graphics cards. The PWM controller in the ISL88550AIRZ-T uses constant-on-time PWM architecture with a programmable switching frequency of up to 600kHz. This control scheme handles wide input/output voltage ratios with ease and provides 100ns "instant-on" response to load transients while maintaining high efficiency and a relatively constant switching frequency. The ISL88550AIRZ-T offers full programmable UVP/OVP and skip mode options ideal in portable applications. Skip mode allows for improved efficiency at lighter loads. The VTT and VTTR outputs track to VREFIN/2. The high bandwidth of this LDO regulator allows excellent transient response without the need for bulk capacitors, thus reducing the cost and size. The buck controller and LDO regulators are provided with independent current limits. Adjustable loss-less fold-back current limit for the buck regulator is achieved by monitoring the drain-to-source voltage drop of the low side synchronous MOSFET. Once overcurrent is removed, the regulator is allowed to enter soft-start again. This helps minimize power dissipation during short-circuit condition. Additionally, overvoltage and undervoltage protection mechanisms are built in. The ISL88550AIRZ-T allow flexible sequencing and standby power management using SHDNA#, and STBY# inputs.
アプリケーション/パラメータの範囲
- Pb-Free (RoHS Compliant) Buck Controller
- Constant-On PWM with 100ns Load-Step Response
- Start-up with Pre-biased Output Voltage
- Up to 95% Efficiency
- 2V to 25V Input Voltage Range
- 2.5V Fixed or 0.7V to 3.5V Adjustable Output
- 200kHz/300kHz/450kHz/600kHz Switching Frequencies
- Programmable Current Limit with Foldback Capability
- 1.7ms Digital Soft-Start and Independent Shutdown
- Overvoltage/Undervoltage Protection Option
- Power-Good Window Comparator LDO Section
- Fully Integrated VTT and VTTR Capability
- VTT has +2.5A/-2.0A Sourcing/Sinking Capability
- Start-Up with Pre-Biased Output Voltage
- VTT and VTTR Outputs Track VREFIN/2
- VTT and VTTR 1% of VREFIN/2
- Low All-Ceramic Output Capacitor Designs
- 1.0V to 2.8V Input REFIN Range
- Analog Soft-Start Option and Independent Shutdown
- Power-Good Window Comparator
(商品画像: Diagram)
技術的パラメータ
- Input Voltage
- 2 V to 25 V
- Switching Frequency
- 600 kHz
- Output Voltage
- 0.7 V to 3.5 V
- Output Current
- 15 A
- Number of Outputs
- 1
- Maximum Operating Temperature
- + 85 C
- Mounting Style
- SMD/SMT
- Package / Case
- TQFN-28
- Minimum Operating Temperature
- - 40 C
- Packaging
- Reel
ISL88550AIRZ-T Datasheet
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ISL88550A
ISL88550AIRZ-T 特殊な製品に関連する
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運送
- 交通手段
- 出荷
- 配信
- 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.
支払い
- お支払い方法
- 支払手数料
- 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$0.00 banking fee.
私たちは高品質の製品、思いやりのサービスと販売保証後を提供します
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私たちは、豊かな製品を持って、あなたの様々なニーズを満たすことができます。
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最小発注数量がの1pcsから始まります。
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最低国際海運料金は$ 2.00米から始まります。
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すべての製品の90日間の品質保証。
梱包
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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.
保証
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 ISL88550AIRZ-T is the original manufacturer or agent of RENESAS?
- We have a professional business development department to strictly test and verify the qualifications of RENESAS original manufacturers and agents. All RENESAS suppliers must pass the qualification review before they can publish their ISL88550AIRZ-T devices; we pay more attention to the channels and quality of ISL88550AIRZ-T products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
- Q: How to find the detailed information of ISL88550AIRZ-T chips? Including RENESAS original factory information, PMIC - Power Supply Controllers, Monitors application, ISL88550AIRZ-T pictures?
- You can use Jotrin's intelligent search engine, or filter by Power Management ; Switching Controller ; Multiple Output Controllers category, or find it through Renesas Technology Corp Information page.
- Q: Are the RENESAS's ISL88550AIRZ-T price and stock displayed on the platform accurate?
- The RENESAS's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ISL88550AIRZ-T, 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 ISL88550AIRZ-T?
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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 ISL88550AIRZT we delivered, we will accept the replacement or return of the ISL88550AIRZ-T 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 ISL88550AIRZ-T.
(3)The ISL88550AIRZ-T 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 ISL88550AIRZ-T datasheet pdf, ISL88550A pin diagram?
- Need any After-Sales service, please feel free contact us: sales@jotrin.com
Renesas Technology Corp
In April 2010, NEC electronics and renesas technologies, two major semiconductor manufacturers in Japan, merged, creating a new professional semiconductor manufacturer renesas electronics. Based on its strong r&d strength, design and development platform and various manufacturing technologies, rene...
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- 5.Renesas electronics has developed a new flash memory technology to achieve the industry's maximum capacity and fastest random access operations
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