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NCP1508

ON Semiconductor
Part Number NCP1508
Manufacturer ON Semiconductor
Description High Efficiency Synchronous Step-Down DC-DC Converter
Published Jan 16, 2007
Detailed Description www.DataSheet4U.com NCP1508 Up to 500 mA, 1 MHz, High Efficiency Synchronous Step−Down DC−DC Converter in DFN Package T...
Datasheet PDF File NCP1508 PDF File

NCP1508
NCP1508

Overview
www.
DataSheet4U.
com NCP1508 Up to 500 mA, 1 MHz, High Efficiency Synchronous Step−Down DC−DC Converter in DFN Package The NCP1508 step−down PWM DC−DC converter is optimized for portable applications powered from 1−cell Li−ion or 3 cell Alkaline/NiCd/NiMH batteries.
This DC−DC converter utilizes a current−mode control architecture for easy compensation and better line regulation.
It also uses synchronous rectification to increase efficiency and reduce external part count.
The NCP1508 optimizes efficiency in light load conditions when switched from a normal PWM mode to a “pulsed switching” mode.
The device also has a built−in 1 MHz (nominal) oscillator for the PWM circuitry, or it can be synchronized to an external 500 kHz to 1000 kHz clock signal.
Finally, it includes an integrated soft−start, cycle−by−cycle current limiting, and thermal shutdown protection.
The NCP1508 is available in a space saving, low profile 3x3 mm 10 pin DFN package.
Features http://onsemi.
com MARKING DIAGRAM 10 ...


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