Products > Integrated Circuits (ICs) > Power Management ICs > ST1L05BPUR
  • ST1L05BPUR

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Very low quiescent BiCMOS voltage regulator,Switching Converters, Regulators & Controllers BiCMOS VOLT REG LOW QUIESCENT

  • Package/Case :
  • DFN-6
  • Product Categories :
  • Switching Converters, Regulators & Controllers
  • RoHs Status:
  • Rohs
  • In-stock:
  • 2480


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ST1L05BPUR Product Details

The ST1L05BPUR is a low drop linear voltage regulator, which supplies up to 1.3 A output current.

The output voltage is fixed at 1.8 V, 2.5 V, 3.3 V and it is adjustable. It is available in three different versions with different pinouts.
Thanks to BiCMOS technology, the quiescent current is controlled and maintained below 650 μA over the entire allowed junction temperature range. The ST1L05BPUR is stable with low ESR output ceramic capacitors.
Internal protection circuitry includes thermal protection with hysteresis and overcurrent limiting.
The ST1L05BPUR is suitable for data storage applications such as HDDs, where it can supply 3.3 V required by read channel and memory chips.
The regulator is available in the small and thin DFN6 (3x3 mm) and DFN8 (4x4 mm) packages.


  • Fixed output voltage: 1.8 V, 2.5 V, 3.3 V and ADJ
  • Output voltage tolerance: ± 2% at 25 °C
  • Output current capability: 1.3 A
  • Very low quiescent current: max. 650 μA
  • Typ. dropout 0.3 V (@ IO = 1.3 A)
  • Enable function for B, C and D versions

ST1L05BPUR Block Diagram
(Picture: Diagram)

Technical Parameters

  • Input Voltage MAX
  • 5.5 V
  • Output Voltage
  • 1.2 V to 5.2 V
  • Dropout Voltage (Max)
  • 500 mV
  • Output Current
  • 1.3 A
  • Load Regulation
  • 30 mV
  • Number of Outputs
  • 1
  • Output Type
  • Adjustable
  • Maximum Operating Temperature
  • + 125 C
  • Mounting Style
  • Package / Case
  • DFN-6
  • Input Voltage MIN
  • 3 V
  • Line Regulation
  • 15 mV
  • Minimum Operating Temperature
  • 0 C
  • Packaging
  • Reel
  • PSRR / Ripple Rejection (Typ)
  • 72 dB at 120 Hz
  • Factory Pack Quantity
  • 3000

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Estimated Delivery Time: Jul 30 - Aug 04 days (choose Expedited at checkout).

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  • Lead Time
  • $20.00-$40.00 (0.50 KG)
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  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • 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.We provide 90 days warranty.

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 ST1L05BPUR is the original manufacturer or agent of ST?
We have a professional business development department to strictly test and verify the qualifications of ST original manufacturers and agents. All ST suppliers must pass the qualification review before they can publish their ST1L05BPUR devices; we pay more attention to the channels and quality of ST1L05BPUR products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of ST1L05BPUR chips? Including ST original factory information, Switching Converters, Regulators & Controllers application, ST1L05BPUR pictures?
You can use Jotrin's intelligent search engine, or filter by Power Management ; Linear Voltage Regulators ; Low Dropout (LDO) Linear Regulators category, or find it through STMicroelectronics, Inc Information page.
Q: Are the ST's ST1L05BPUR price and stock displayed on the platform accurate?
The ST's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ST1L05BPUR, 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 ST1L05BPUR?
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 ST1L05BPUR we delivered, we will accept the replacement or return of the ST1L05BPUR 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 ST1L05BPUR.
(3)The ST1L05BPUR 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 ST1L05BPUR datasheet pdf, ST1L05 pin diagram?
Need any After-Sales service, please feel free contact us:

STMicroelectronics, Inc

ST Microelectronics is a global independent semiconductor company and a leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications, and that designs, develops, manufactures and markets a broad spectrum of products....
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