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LT1521IST-5

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LDO Regulator Pos 5V 0.3A 4-Pin(3+Tab) SOT-223

Manufacturer : Analog Devices, Inc
Package/Case : SOT-223
Product Categories : Linear (LDO)
Datasheet: LT1521IST-5 Datasheet (PDF)
RoHs Status: Lead free/RoHS Compliant
Marking Code: 1521I5
In-stock: 35

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LT1521IST-5 Product Details

The LT1521/LT1521-3/LT1521-3.3/LT1521-5 are low dropout regulators with micropower quiescent current and shutdown. These devices are capable of supplying 300mA of output current with a dropout voltage of 0.5V.Designed for use in battery-powered systems, the low quiescent current, 12uA operating and 6uA in shutdown, makes them an ideal choice. The quiescent current is well controlled; it does not rise in dropout as it does with many other low dropout PNP regulators.

Other features of the LT1521/LT1521-3/LT1521-3.3/LT1521-5 include the ability to operate with very small output capacitors. They are stable with only 1.5uF on the output while most older devices require between 10uF and 100uF for stability. Small ceramic capacitors can be used,enhancing manufacturability. Also, the input may be connected to voltages lower than the output voltage, including negative voltages, without reverse current flow from output to input. This makes the LT1521IST-5 series ideal for backup power situations where the output is held high and the input is low or reversed. Under these conditions only 5uA will flow from the output pin to ground.

LT1521IST-5

Feature

  • Dropout Voltage: 0.5V
  • Output Current: 300mA
  • Quiescent Current: 12µA
  • No Protection Diodes Needed
  • Adjustable Output from 3.8V to 20V
  • Fixed Output Voltages: 3V, 3.3V, 5V
  • Controlled Quiescent Current in Dropout
  • Shutdown IQ = 6µA
  • Reverse Battery Protection
  • No Reverse Current
  • Thermal Limiting

Applications

  • Low Current Regulator
  • Regulator for Battery-Powered Systems
  • Post Regulator for Switching Supplies

LT1521IST-5 Block Diagram
(Picture: Diagram)

Technical Parameters

  • Number of Outputs
  • 1
  • Vinmin | V
  • 4.3
  • Vinmax | V
  • 20
  • Output Currenttyp | A
  • 300m
  • Output Current 2typ | A
  • -
  • Output Voltage
  • 3, 3.3, 5, Adj
  • RMS Noisetyp | V
  • -
  • Isupplytyp | A
  • 12µ
  • Dropout Voltagetyp | V
  • 500m
  • Features
  • Shutdown

LT1521IST-5 Datasheet

  • LT1521 Technical Documentation/Data sheet

LT1521IST-5 Related Products

Ratings and Reviews (1)

  • 5 / 5
  • 5 Stars 100%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • **lain***
    2020-03-28

    Product meets my expectations

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Estimated Delivery Time: Jun 30 - Jul 05 days (choose Expedited at checkout).

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    90 days quality guarantee for all products.

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

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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.

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Guarantees

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 LT1521IST-5 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 LT1521IST-5 devices; we pay more attention to the channels and quality of LT1521IST-5 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of LT1521IST-5 chips? Including ADI original factory information, Linear (LDO) application, LT1521IST-5 pictures?
You can use Jotrin's intelligent search engine, or filter by LDO Linear Regulators ; Positive Linear Regulators (LDO) category, or find it through Analog Devices, Inc Information page.
Q: Are the ADI's LT1521IST-5 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 LT1521IST-5, 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.
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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 LT1521IST-5?
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 LT1521IST5 we delivered, we will accept the replacement or return of the LT1521IST-5 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 LT1521IST-5.
(3)The LT1521IST-5 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 LT1521IST-5 datasheet pdf, LT1521 pin diagram?
Need any After-Sales service, please feel free contact us: sales@jotrin.com

Analog Devices, Inc

ADI
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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