Datasheet Summary
Buck Converter
- DC-DC
1.5 MHz, 600 mA
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 ponent size by allowing smaller inductors and capacitors. Automatic switching PWM/PFM mode offers improved system efficiency.
Additional Features include integrated soft- start,...