6V - 18V Input Sync-Buck 0.5A LED Driver Reference Design
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Key Document
Description
This LM20323 integrated FET sync-buck converter regulates the current in a white LED to 0.5A with minimum parts count. LED current is accurately measured with an INA193 and provides feedback to regulate the output current.
Features
- High switching frequency (520KHz) allows small size
- Integrated controller allows low parts count
- This design has been verified and includes a test report
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
Schematic/Block Diagram
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Test Data
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TI Devices (2)
Order samples, get tools and find more information on the TI products in this reference design.
| Sample & Buy |
Design Kits & Evaluation Modules |
| INA193 |
-16V to +80V, Low-/High-side, High-Speed, Voltage Output Current Sense Amplifier |
Current sense amplifiers |
Sample & Buy |
Not Available |
| LM20323 |
4.5-36V, 3A Current Mode Synchronous Buck Regulator |
Step-down (buck) |
Sample & Buy |
Not Available |
CAD/CAE symbols
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.
Step 1: Download and install the free download.
Step 2: Download the Symbol and Footprint from the CAD.bxl file table.
Step 3: Open the .bxl file with the Ultra Librarian software.
You can always access the complete CAD/CAE Symbols database at http://webench.ti.com/cad/
Both PCB footprints and schematic symbols are available for download in a vendor neutral format, which can then be exported to the leading EDA CAD/CAE design tools using the Ultra Librarian Reader. The reader is available as a (free download.).
The UL Reader is a subset of the Ultra Librarian toolset that can generate, import, and export components and their attributes in virtually any EDA CAD/CAE format.
Technical Documents
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
User guides (1)
| Title | Abstract | Type | Size (KB) | Date |
| | | PDF | 1675 |
14 Apr 2016
|
Design files (6)
| | | PDF | 47 |
14 Apr 2016
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| | | PDF | 105 |
14 Apr 2016
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| | | PDF | 122 |
14 Apr 2016
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| | | ZIP | 392 |
14 Apr 2016
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| | | ZIP | 22325 |
14 Apr 2016
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| | | PDF | 5163 |
14 Apr 2016
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