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NCP1526

更新时间： 2024-11-19 04:37:55
品牌 Logo 应用领域
安森美 - ONSEMI 转换器稳压器
页数 文件大小 规格书
16页 293K
描述
400 mA, 1.2 V, High−Efficiency, Step−Down Converter with Low Noise Voltage Regulator Optimized for RF Module

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NCP1526 数据手册

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NCP1526  
400 mA, 1.2 V,  
High−Efficiency, Step−Down  
Converter with Low Noise  
Voltage Regulator  
Optimized for RF Module  
http://onsemi.com  
The NCP1526 product is a monolithic integrated circuit combining  
step−down PWM DC−DC converter dedicated to the portable  
applications powered from one cell Li−ion or three cell Alkaline/  
NiCd/NiMH batteries and a low noise output voltage regulator  
dedicated to supply RF sensitive module in the portable applications.  
The DC−DC converter operates with a fixed output voltage of  
1.2 V and delivers up to 400 mA. It uses synchronous rectification to  
increase efficiency and reduces external part count. The device also  
has a built−in 3.0 MHz (nominal) oscillator which reduces  
component size by allowing small inductor and capacitors. It  
includes an integrated soft−start, cycle−by−cycle current limiting,  
and thermal shutdown protection.  
MARKING  
DIAGRAM  
1526  
ALYWG  
G
10 PIN DFN  
MU SUFFIX  
CASE 506AT  
1526  
A
L
Y
W
G
= Specific Device Code  
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
The additional 2.80 V very low noise, low drop output regulator, is  
available with 150 mA current capability, current limitation and  
overtemperature protection.  
= Pb−Free Package  
(Note: Microdot may be in either location)  
Finally, the NCP1526 is available in a space saving, ultra low  
profile 3x3 mm 10 pin UDFN package (thickness 0.55 mm max).  
PIN CONNECTIONS  
Features  
• Step−Down Converter  
FB  
EN1  
VIN1  
LX  
− Up to 85% Efficiency  
GND1  
VIN2  
V1  
EN2  
GND2  
BYPASS  
− Output Current Capability 400 mA  
− 3.0 MHz Switching Frequency  
− 1.2 V Fixed Output Voltage  
− Synchronous Rectification for Higher Efficiency  
• LDO Regulator  
(Top View)  
− 2.80 V Output Voltage  
− Up to 150 mA Output Current Capability  
ORDERING INFORMATION  
− Very Low Noise: 45 mV  
RMS  
†
Device  
NCP1526MUTXG  
Package  
Shipping  
• All Pins are Fully ESD Protected  
• 2.7 V to 5.5 V Input Voltage Range  
• Thermal Limit Protection  
UDFN−10 3000/Tape & 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.  
• 3.0 mm x 3.0 mm x 0.55 mm UDFN Package  
• This is a Pb−Free Device  
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, 2006  
1
Publication Order Number:  
July, 2006 − Rev. 0  
NCP1526/D  
1234567...16

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