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Partname: | NCP5030MTTXG |
Description: | Buck−Boost Converter to Drive a Single LED from Li−Ion or 3 Alkaline Batteries |
Manufacturer: | ON Semiconductor |
Datasheet: | PDF (128K). Click here to download *) |
The NCP5030 is a fixed frequency PWM buck-boost converter optimized for constant current applications such as driving high-powered white LED. The buck-boost is implemented in an H-bridge topology and has an adaptive architecture where it operates in one of three modes: boost, buck-boost, or buck depending on the input and output voltage condition. This device has been designed with high-efficiency for use in portable applications and is capable of driving in DC up to 900 mA into a high power LED for flashlight / torch applications. To protect the device cycle-by-cycle current limiting and a thermal shutdown circuit have been incorporated as well as output over-voltage protection. The 700 kHz switching frequency allows the use of a low value 4.7 mH and ceramic capacitors. The NCP5030 is housed in a low profile space efficient 3x4 mm thermally enhanced WDFN. Features |
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Click here to download NCP5030MTTXG Datasheet*) |
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