HomedatasheetNCP1521BSNT1G

NCP1521BSNT1G Datasheet

DC/DC Switching Converters
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Description

The NCP1521BSNT1G 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. NCP1521BSNT1G Features • Up to 96% Efficiency• Best−In−Class Ripple, including PFM Mode• Sources up to 600 mA• 1.5 MHz Switching Frequency• Adjustable Output Voltage from 0.9 V to 3.9 V• Synchronous Rectification for Higher Efficiency• 2.7 V to 5.5 V Input Voltage Range• Low Quiescent Current• Shutdown Current Consumption of 0.3 A• Thermal Limit Protection• Short Circuit Protection• All Pins are Fully ESD Protected• This is a Pb−Free Device NCP1521BSNT1G Applications • Cellular Phones, Smart Phones and PDAs• Digital Still/Video Cameras• MP3 Players and Portable Audio Systems• Wireless and DSL Modems• Portable Equipment• USB Powered Devices
Features

Parameters

[{"Name":"Input Voltage MAX","Value":"5.5 V "},{"Name":"Switching Frequency","Value":"1.5 MHz"},{"Name":"Output Voltage","Value":"0.9 V to 3.3 V "},{"Name":"Output Current","Value":"600 mA "},{"Name":"Number of Outputs","Value":"1"},{"Name":"Maximum Operating Temperature","Value":"+ 85 C "},{"Name":"Mounting Style","Value":"SMD/SMT"},{"Name":"Packaging","Value":"Reel "}]

Manufacturer information

SILICON LABORATORIES
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