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 current limiting, and thermal shutdown protection. The NCP1521 is available in space saving, low profile TSOP5 package. By ON Semiconductor
NCP1521 's PackagesNCP1521 's pdf datasheet

NCP1521 Pinout, Pinouts
NCP1521 pinout,Pin out
This is one package pinout of NCP1521,If you need more pinouts please download NCP1521's pdf datasheet.

NCP1521 Application circuits
NCP1521 circuits
This is one application circuit of NCP1521,If you need more circuits,please download NCP1521's pdf datasheet.

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