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NCP1521

ON Semiconductor
Part Number NCP1521
Manufacturer ON Semiconductor
Description Adjustable Output Voltage Step-Down Converter
Published Jan 16, 2007
Detailed Description NCP1521 1.5 MHz, 600 mA, High-Ef ficiency, Low Quiescent Current, Adjustable Output Voltage Step-Down Converter The NCP...
Datasheet PDF File NCP1521 PDF File

NCP1521
NCP1521

Overview
NCP1521 1.
5 MHz, 600 mA, High-Ef ficiency, Low Quiescent Current, Adjustable Output Voltage Step-Down Converter The NCP1521 step- down PWM DC- DC converter is optimized for portable applications powered from one cell Li- ion or three cell Alkaline/NiCd/NiMH batteries.
The device is available in an adjustable output voltage from 0.
9 V to 3.
3 V.
It uses synchronous rectification to increase efficiency and reduce external part count.
The device also has a built- in 1.
5 MHz (nominal) oscillator which reduces component size by allowing a small inductor and capacitors.
Automatic switching PWM/PFM mode offers improved system efficiency.
Finally, it includes an integrated soft-start, cycle-by-cycle...


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