NCP1523 Adjustable Output Voltage Step Down Converter Demonstration Board
■The NCP1523 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 2.3 V. It uses synchronous rectification to increase efficiency and reduce external part count. The device also has a built−in 3 MHz (nominal) oscillator which reduces component size by allowing a small inductor and capacitors. Available in automatic switching PWM/PFM mode (NCP1523FCT2G), it increases system efficiency at light load to save battery life.
■Finally, it includes an integrated soft−start, cycle−by−cycle current limiting, and thermal shutdown protection. The NCP1523 is available in a space saving, 8 pin chip scale package.
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| 世强硬创平台www.sekorm.com | |
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