1.5 MHz, 600 MA Step-Down DC-DC Converter

The NCP1521B Step-down DC-DC Converter is a monolithic integrated circuit optimized for portable applications powered from one cell Li- Ion or three cell Alkaline/NiCd/NiMH batteries. The part, available in adjustable output voltage versions ranging from 0.9 V to 3.9 V, is able to deliver up to 600 mA. 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 smaller inductors and capacitors. Automatic switching PWM/PFM mode offers improved system efficiency. Additional features include integrated soft- start, cycle- by- cycle current limiting and thermal shutdown protection. The NCP1521B is available in a space saving, low profile TSOP5 and UDFN6 packages. By ON Semiconductor
NCP1521B 's PackagesNCP1521B 's pdf datasheet
NCP1521BSNT1G TSOP
NCP1521BMUTBG UDFN




NCP1521B Pinout, Pinouts
NCP1521B pinout,Pin out
This is one package pinout of NCP1521B,If you need more pinouts please download NCP1521B's pdf datasheet.

NCP1521B Application circuits
NCP1521B circuits
This is one application circuit of NCP1521B,If you need more circuits,please download NCP1521B's pdf datasheet.


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