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HomeProductsIntegrated Circuits (ICs)PMIC - Voltage Regulators - DC DC Switching RegulatorsLSP5503L-R8A
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LSP5503L-R8A - Diodes Incorporated

Manufacturer Part Number
LSP5503L-R8A
Manufacturer
Diodes Incorporated
Allelco Part Number
32D-LSP5503L-R8A
Warranty
1 Year Allelco Warranty - Find out more
Parts Description
IC REG BUCK ADJ 3A 8SOP
Package
8-SOP-EP
Data sheet
1.LSP5503L-R8A.pdf ...

PCN Obsolescence/ EOL

Diodes 31-Aug-22.pdf

Environmental Information

Diodes Environmental Compliance Cert.pdf
Our certification
In stock: 14780
  • Unit Price: $0.224
  • Subtotal: $0.00

Want a better price?
Add to Cart and Submit RFQ now, we'll contact you immediately.

Quantity Unit Price Ext. Price
5+ $0.224 $1.12
50+ $0.183 $9.15
150+ $0.165 $24.75
500+ $0.143 $71.50
2500+ $0.133 $332.50
5000+ $0.127 $635.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.
EXPRESS OPTION
Payment method
Our certification

Specifications

LSP5503L-R8A Tech Specifications
Diodes Incorporated - LSP5503L-R8A technical specifications, attributes, parameters and parts with similar specifications to Diodes Incorporated - LSP5503L-R8A

Product Attribute Attribute Value  
Manufacturer Diodes Incorporated  
Voltage - Output (Min/Fixed) 0.925V  
Voltage - Output (Max) 18.4V  
Voltage - Input (Min) 4.5V  
Voltage - Input (Max) 23V  
Topology Buck  
Synchronous Rectifier Yes  
Supplier Device Package 8-SOP-EP  
Series -  
Package / Case 8-SOIC (0.154", 3.90mm Width) Exposed Pad  
Product Attribute Attribute Value  
Package Tape & Reel (TR)  
Output Type Adjustable  
Output Configuration Positive  
Operating Temperature -20°C ~ 125°C (TJ)  
Number of Outputs 1  
Mounting Type Surface Mount  
Function Step-Down  
Frequency - Switching 340kHz  
Current - Output 3A  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
ECCN OBSOLETE

Parts Introduction

Manufacturer Part Number

LSP5503L-R8A

Manufacturer

diodes

Introduction

The LSP5503L-R8A is a high-efficiency, synchronous step-down DC-DC converter that provides a regulated output voltage from a wide input voltage range. It features an adjustable output voltage, allowing for customization to meet specific application requirements. With its compact surface mount package and robust thermal performance, this product is well-suited for a variety of power supply applications.

Product Features and Performance

Wide input voltage range: 4.5V to 23V

Adjustable output voltage: 0.925V to 18.4V

Output current capability up to 3A

High efficiency of up to 95%

Switching frequency of 340kHz

Synchronous rectification for improved efficiency

Thermal shutdown and overcurrent protection

Small 8-SOIC package with exposed thermal pad

Product Advantages

Wide input voltage range accommodates various power sources

Adjustable output voltage enables flexible system design

High efficiency reduces power loss and heat generation

Compact package and robust thermal performance

Key Reasons to Choose This Product

Versatile power solution for a wide range of applications

Efficient and reliable operation to optimize system performance

Space-saving design for compact system integration

Comprehensive protection features for enhanced safety and reliability

Quality and Safety Features

Robust thermal design for reliable operation

Overcurrent and thermal shutdown protection

Compliance with industry standards for quality and safety

Compatibility

The LSP5503L-R8A is compatible with a variety of power supply and electronic system applications.

Application Areas

Portable electronics

Industrial equipment

Telecommunications infrastructure

Automotive electronics

Household appliances

Product Lifecycle

The LSP5503L-R8A is an obsolete product. Please contact our website's sales team for information on equivalent or alternative models that may be available.

Parts with Similar Specifications

The three parts on the right have similar specifications to Diodes Incorporated LSP5503L-R8A

Product Attribute LSP5523-R8A LSP5526-S8A LSP5311AAADADJ LSP5311BAADADJ
Part Number LSP5523-R8A LSP5526-S8A LSP5311AAADADJ LSP5311BAADADJ
Manufacturer Diodes Incorporated Diodes Incorporated Diodes Incorporated Diodes Incorporated
Frequency - Switching - - - -
Voltage - Input (Min) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Number of Outputs - - - -
Function - - - -
Output Type - Current - Unbuffered Voltage - Buffered -
Voltage - Input (Max) - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Current - Output - - - -
Output Configuration - - - -
Voltage - Output (Max) - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Synchronous Rectifier - - - -
Topology - - - -
Voltage - Output (Min/Fixed) - - - -
Series - - - -

LSP5503L-R8A Datasheet PDF

Download LSP5503L-R8A pdf datasheets and Diodes Incorporated documentation for LSP5503L-R8A - Diodes Incorporated.

PCN Obsolescence/ EOL
Diodes 31-Aug-22.pdf
Environmental Information
Diodes Environmental Compliance Cert.pdf

Customer Reviews

Evaluation: 10 Articles

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

  • Daic***K.
    Mar 23, 2026

    Very good. No issue after long time testing.

  • Kevi***.
    Mar 17, 2026

    Fast switching and stable output. Very satisfied with this IC

  • Daou***hekebkeb
    Jun 16, 2024

    I had a great experience purchasing items from Allelcoelec, I recommend

  • Uri ***al
    Jun 19, 2024

    Good comunication,
    Transpnt regarding the process and price.

  • Yaqu***l Ali
    Jun 19, 2024

    Providing reasonable prices, regular follow-up of orders, providing accurate and regular invoices, timely delivery of goods, excellent customer service and providing original goods and best quality materials.

  • Lea ***
    Jun 19, 2024

    Morrey was very helpful and right on top of things!
    He replied quickly to my RFQ. He was very courteous and professional.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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Diodes Incorporated

LSP5503L-R8A

Diodes Incorporated
32D-LSP5503L-R8A

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