9V - 32V input to -28V/1.5A negative output buck-boost LED current regulator
Description
This reference design uses the TPS40170 sync buck controller in a buck-boost converter to regulate the current in a series string of 6 to 8 LEDs (-28V) at up to 1.5A. Efficiency is greater than 93%. The output current can be adjusted with an external control voltage.
Features
Applications
Product Categories
- Power management
| Download the bill of materials for PMP6867 | Download |
| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| PMP6867 PCB | 15 Feb 2012 | 154 | ||
| PMP6867 Gerber | 15 Feb 2012 | ZIP | 128 | |
| PMP6867 BOM | 15 Feb 2012 | 28 | ||
| PMP6867 Schematic | 15 Feb 2012 | 79 |