ST1S40IDR

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STMicroelectronics ST1S40IDR

Part No.:
ST1S40IDR
Manufacturer:
STMicroelectronics
Package:
8-SOIC (0.154, 3.90mm Width)
Datasheet:
ST1S40IDR.pdf
Description:
IC REG BUCK ADJUSTABLE 3A 8SO
In Stock:
13023
Quantity:
  Add To Cart
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  • Purchase and inquiryPurchase and inquiry

    ST1S40IDR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ST1S40IDR price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for ST1S40IDR to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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    ST1S40IDR Typical application Circuitry Schematics


    The ST1S40IDR is a synchronous step-down switching voltage regulator, developed by STMicroelectronics. It is designed to provide an efficient and regulated lower output voltage from a higher input voltage. These types of devices are broadly used in power supply and power management applications where energy efficiency is pivotal.  

    Main Circuit Elements:  

    1. Power Input and Output: - VIN: Connect the input voltage, ensuring adherence to the specified range in the datasheet. - VOUT: The regulated output voltage is accessed from this pin.  

    2. Feedback Network: - FB (Feedback Pin): Connect to a resistive divider network from the output voltage to the ground to set the output voltage. - R1 and R2: Select these resistors to set your desired output voltage as per the datasheet's guideline.  

    3. Output Capacitor (Cout): - Employ a capacitor here to stabilize the output voltage, selecting type and value based on datasheet recommendations.  

    4. Input Capacitor (Cin): - Connect a capacitor close to the VIN pin to decouple the input power source and provide stability to the input voltage.  

    5. Inductor (L): - This is connected to the switch pin (SW) and is crucial for energy storage and release in the converter.  

    6. Compensation Network: - COMP Pin: Sometimes, a compensation network (an RC, or R-C-Z network) might be connected here to stabilize the control loop, based on datasheet guidelines.  

    7. Soft Start (if applicable): - SS (Soft Start) Pin: Connect an external capacitor here to manage the inrush current and define the soft-start profile during startup.  

    8. Enable/Shutdown: - EN: Use this pin to enable or disable the regulator, controlling the active and shutdown modes of the device.  

    Additional Considerations:  - Thermal Management: - Ensure that your layout allows for efficient heat dissipation and that the component operates within the specified temperature range.  - PCB Layout: - High-current paths (input, output, and SW) should have short, wide traces, and critical passive components should be placed close to relevant IC pins. - The feedback network should be routed away from noisy traces to prevent interference.  - Protection: - Depending on your application, consider implementing input over-voltage, under-voltage, and reverse-voltage protection.  - Filtering: - Additional input or output filtering may be required for noise-sensitive applications.  - Feedback Divider: - Ensure accurate calculation and implementation of the feedback resistive divider for precise output voltage setting.  Important Note: Always refer to the datasheet and any available application notes for the ST1S40 for specific guidelines regarding electrical characteristics, stability criteria, compensation network design, and other application-specific recommendations to create a robust and efficient power supply. If you have additional questions or specific application challenges, feel free to share more details!

    ST1S40IDR informationST1S40IDR information

    ST1S40IDR FAQ

    1. How to order ST1S40IDR on icwhale.com?

    Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

    2. How does icwhale.com guarantee that ST1S40IDR is from the original manufacturer or authorized agents?

    We have a professional and experienced quality control team to strictly verify and test the ST1S40IDR. All suppliers must pass our qualification reviews before they can publish their products including ST1S40IDR on icwhale.com; we pay more attention to the channels and quality of ST1S40IDR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

    3. Are the ST1S40IDR price and inventory displayed accurate?

    The price and inventory of ST1S40IDR fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

    4. What forms of payment are accepted?

    Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

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    Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

    6. What is the process for return or replacement of ST1S40IDR?

    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 ST1S40IDR we delivered, we will accept the replacement or return of the ST1S40IDR 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 ST1S40IDR.

    (3)The PartNo 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

    7.How to contact us to get technical supports, such as ST1S40IDR pin diagram, ST1S40IDR datasheet?

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