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NCP1523_07 PDF预览

NCP1523_07

更新时间: 2024-11-23 04:37:55
品牌 Logo 应用领域
安森美 - ONSEMI 转换器
页数 文件大小 规格书
16页 262K
描述
3 MHz, 600 mA, High−Efficiency, Adjustable Output Voltage Step−down Converter

NCP1523_07 数据手册

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NCP1523  
3 MHz, 600 mA,  
High−Efficiency, Adjustable  
Output Voltage Step−down  
Converter  
http://onsemi.com  
MARKING  
The NCP1523 step−down PWM DC−DC converter is optimized for  
portable applications powered from 1−cell Li−ion or 3 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 MHz (nominal) oscillator which reduces  
component size by allowing use of a small inductor and capacitors.  
NCP1523 is available in automatic switching PWM/PFM  
(NCP1523FCT2G) improving system efficiency and in PWM mode  
only (NCP1523BFCT2G) offering a very efficient load transient  
solution.  
DIAGRAM  
A1  
NCPxxxxG  
AYWW  
FLIP−CHIP−8  
CASE 766AE  
A1  
NCPxxxx = Device Code  
xxxx = 1523 or 523B  
Assembly Location  
Year  
Work Week  
Pb−Free Package  
Additional features include 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.  
A
Y
WW  
G
=
=
=
=
Features  
Sources up to 600 mA  
PIN CONNECTIONS  
3 MHz Switching Frequency  
Up to 93% Efficiency  
A1  
B1  
C1  
A2  
Synchronous rectification for higher efficiency  
Thermal limit protection  
PIN: A1 − GND  
A2 − V  
IN  
B2  
C2  
B1 − SW  
B2 − EN  
C1 − GND  
C2 − ADJ  
Shutdown current consumption of 0.3 A  
These are Pb−Free Devices  
D1  
D2  
D1 − V  
OUT  
Special Features for NCP1523FCT2G  
D2 − FB  
Auto PFM/PWM mode solution  
High efficiency at light load  
Top View  
(Bumps Below)  
Special Features for NCP1523BFCT2G  
ORDERING INFORMATION  
Load Transient Highly Efficient Solution  
Very small Output Voltage Ripple  
Adjustable Output Voltage from 0.9 V to 3.3 V  
Device  
Package  
Shipping  
NCP1523FCT2G  
(NCP1523)  
FLIP−CHIP−8  
(Pb−Free)  
3000 /  
Tape & Reel  
Typical Applications  
NCP1523BFCT2G FLIP−CHIP−8  
(NCP1523B) (Pb−Free)  
3000 /  
Tape & Reel  
Cellular Phones, Smart Phones and PDAs  
Digital Still Cameras  
MP3 Players and Portable Audio Systems  
Wireless and DSL Modems  
Portable Equipment  
†For information on tape and reel specifications,  
including part orientation and tape sizes, please  
refer to our Tape and Reel Packaging Specifications  
Brochure, BRD8011/D.  
©
Semiconductor Components Industries, LLC, 2007  
1
Publication Order Number:  
February, 2007 − Rev. 2  
NCP1523/D  

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