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Details, datasheet, quote on part number:NCP1521
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| Part: | NCP1521 |
| Category: | Power Management => DC-DC Converters => Step-down |
| Description: | 1.5 MHz, 600 mA, High−Efficiency, 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 a space saving, low profile TSOP5 package.
Features and Applications
Features
96% efficiency, 30 uA quiescent current, 0.3 uA shutdown current
1.5 MHz switching frequency
Auto-switching between PWM and PFM, depending on loading
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Applications
Extends battery life and 'play-time'
Lowers required inductance and capacitance, which reduces required PCB space
Ensures low power consumption at light loading
Power supply for application processor
Power supply for processor with low core voltage
Cellular phones, smart phones, and PDAs
MP3 players and portable audio systems
Digital still cameras and video cameras |
| Company: | ON Semiconductor |
| Datasheet: | Download NCP1521 datasheet File size : 150 kB |
| Request For quote: | Find where to buy NCP1521
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