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NCP1523 PDF预览

NCP1523

更新时间: 2024-11-19 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
14页 302K
描述
3 MHz, 600 mA, High−Efficiency, Adjustable Output Voltage Stepdown Converter

NCP1523 数据手册

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NCP1523  
3 MHz, 600 mA,  
High−Efficiency, Adjustable  
Output Voltage Stepdown  
Converter  
The NCP1523 stepdown PWM DCDC converter is optimized for  
portable applications powered from 1cell Liion or 3cell  
Alkaline/NiCd/NiMH batteries. The device is available in an  
adjustable output voltage from 0.9 V to 2.3 V. It uses synchronous  
rectification to increase efficiency and reduce external part count. The  
device also has a builtin 3 MHz (nominal) oscillator which reduces  
component size by allowing a small inductor and capacitors.  
Automatic switching PWM/PFM mode offers improved system  
efficiency.  
http://onsemi.com  
MARKING  
DIAGRAM  
NCP1523G  
AYWW  
A1  
FLIPCHIP8  
CASE 766AE  
A1  
Finally, it includes an integrated softstart, cyclebycycle current  
limiting, and thermal shutdown protection. The NCP1523 is available  
in a space saving, 8 pin chip scale package.  
A
Y
WW  
G
= Assembly Location  
= Year  
= Work Week  
Features  
= PbFree Package  
Up to 93% Efficiency  
Sources up to 600 mA  
A1  
B1  
C1  
A2  
PIN: A1 GND  
A2 V  
3 MHz Switching Frequency  
IN  
B2  
C3  
Adjustable Output Voltage from 0.9 V to 2.3 V  
60 mA Quiescent Current  
B1 SW  
B2 EN  
C1 GND  
C2 ADJ  
Synchronous Rectification for Higher Efficiency.  
2.7 V to 5.5 V Input Voltage Range  
Thermal Limit Protection  
D1  
D2  
D1 V  
OUT  
D2 FB  
Top View  
(Bumps Below)  
Shutdown Current Consumption of 0.3 mA  
This is a PbFree Device*  
Typical Applications  
ORDERING INFORMATION  
Cellular Phones, Smart Phones and PDAs  
Digital Still Cameras  
MP3 Players and Portable Audio Systems  
Wireless and DSL Modems  
Portable Equipment  
Device  
Package  
Shipping  
3000 /  
Tape * Reel  
NCP1523FCT2G FLIPCHIP8  
(PbFree)  
†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.  
L
V
IN  
A2  
C1  
A1  
B2  
B1  
D1  
C2  
D2  
SW  
V
OUT  
V
IN  
C
IN  
C
OUT  
V
OUT  
GND  
GND  
EN  
ADJ  
FB  
R1  
R2  
OFF ON  
Figure 1. NCP1523 Typical Applications  
*For additional information on our PbFree strategy  
and soldering details, please download the  
ON Semiconductor Soldering and Mounting  
Techniques Reference Manual, SOLDERRM/D.  
© Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
August, 2006 Rev. 0  
NCP1523/D  

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