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NCP1522

ON Semiconductor
Part Number NCP1522
Manufacturer ON Semiconductor
Description Adjustable Output Voltage Step-Down Converter
Published Jan 16, 2007
Detailed Description www.DataSheet4U.com NCP1522 3.0 MHz, 600 mA, High−Efficiency, Low Quiescent Current, Adjustable Output Voltage Step−Dow...
Datasheet PDF File NCP1522 PDF File

NCP1522
NCP1522

Overview
www.
DataSheet4U.
com NCP1522 3.
0 MHz, 600 mA, High−Efficiency, Low Quiescent Current, Adjustable Output Voltage Step−Down Converter The NCP1522 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 3.
0 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 NCP1522 is available in a space saving, low profile TSOP5 package.
Features http://onsemi.
com MARKING DIAGRAM 5 5 1 TSOP−5 ASN SUFFIX CASE 483 DBRAYWG G 1 • 93.
8% of Efficiency for 3.
3 V Output and 4.
5 V Input and 120 mA • • • • • • • • • • • • • • • • Load Current Sources up to 600 mA 3.
0 MHz Switching Frequency Adjustable Output Voltage from 0.
9 V to 3.
3 V 60 mA Quiescent Current (Typ) Synchronous Rectification for Higher Efficiency 2.
7 V to 5.
5 V Input Voltage Range Thermal Limit Protection Shutdown Current Consumption of 0.
3 mA Short Circuit Protection This is a Pb−Free Device Cellular Phones, Smart Phones and PDAs MP3 Players and Portable Audio Systems Wireless and DSL Modems Portable Equipment USB Powered Devices Digital Still/Video Cameras A = Assembly Location Y = Year W = Work Week G = Pb−Free Package (Note: Microdot may be in either location) PIN CONNECTIONS VIN GND EN 1 2 3 (Top View) 4 FB 5 LX ORDERING INFORMATION Device NCP1522ASNT1G Package Shipping Typical Applications TSOP−5 3000/T ape & Reel (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D.
VIN CIN L 1 2...


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