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NCP1532

更新时间： 2024-11-19 11:50:55
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 352K
描述
Dual Output Step-Down Converter 2.25 MHz High-Efficiency, Out of Phase Operation, Low Quiescent Current, Source up to 1.6 A

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NCP1532 数据手册

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NCP1532  
Dual Output Step-Down  
Converter 2.25 MHz  
High-Efficiency, Out of  
Phase Operation, Low  
Quiescent Current, Source  
up to 1.6 A  
http://onsemi.com  
MARKING  
DIAGRAM  
The NCP1532 dual step down DCDC converter is a monolithic  
integrated circuit dedicated to supply core and I/O voltages of new  
multimedia design in portable applications powered from 1−cell  
Li−ion or 3 cell Alkaline / NiCd / NiMH batteries.  
1532  
AA  
UDFN10  
MU SUFFIX  
CASE 506AT  
AaLYWG  
G
Both channels are externally adjustable from 0.9 V to 3.3 V and can  
source totally up to 1.6 A, 1.0 A maximum per channel. Converters are  
running at 2.25 MHz switching frequency which reduces component  
size by allowing the use of small inductor (down to 1 mH) and  
capacitors and operates 180° out of phase to reduce large amount of  
current demand on the battery. Automatic switching PWM/PFM mode  
and synchronous rectification offer improved system efficiency. The  
device can also operate into fixed frequency PWM mode for low noise  
applications where low ripple and good load transients are required.  
Additional features include integrated soft−start, cycle−by−cycle  
current limit and thermal shutdown protection. The device can also be  
synchronized to an external clock signal in the range of 2.25 MHz.  
The NCP1532 is available in a space saving, ultra low profile  
3x3 x 0.55 mm 10 pin mDFN package.  
Aa  
= Assembly Location  
(may be 1 or 2 characters)  
= Wafer Lot  
= Year  
= Work Week  
L
Y
W
G
= Pb−Free Package  
(Note: Microdot may be in either location)  
PIN CONNECTION  
FB1  
EN1  
VIN  
1
2
3
4
10 FB2  
EN2  
POR  
SW2  
9
8
7
6
Features  
• Up to 97% Efficiency  
• 50 mA Quiescent Current  
SW1  
GND  
MODE/  
SYNC  
5
• Synchronous Rectification for Higher Efficiency  
• 2.25 MHz Switching Frequency, 180° Out of Phase  
• Sources up to 1.6 A, 1.0 A Maximum per Channel  
• Adjustable Output Voltage from 0.9 V to 3.3 V  
• Mode Selection Pin: Eco Mode or Low Noise Mode  
• 2.7 V to 5.5 V Input Voltage Range  
• Thermal Limit Protection  
(Top View)  
UDFN10  
ORDERING INFORMATION  
†
Device  
Package  
Shipping  
3000 /  
Tape & Reel  
NCP1532MUAATXG UDFN10  
(Pb−Free)  
• Short Circuit Protection  
• All pins are fully ESD Protected  
• This is a Pb−Free Device  
†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.  
Typical Applications  
• Cellular Phones, Smart Phones and PDAs  
• Digital Still Cameras  
• MP3 Players and Portable Audio Systems  
• Wireless and DSL Modems  
• Portable Equipment  
© Semiconductor Components Industries, LLC, 2010  
1
Publication Order Number:  
June, 2010 − Rev. 5  
NCP1532/D  
1234567...16

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