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NCV47551

更新时间： 2024-11-24 01:19:43
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
12页 168K
描述
3.3 V to 20 V Adjustable Low Noise LDO Regulator with Adjustable Current Limit and 3.3 V Logic

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NCV47551 数据手册

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NCV47551  
3.3 V to 20 V Adjustable  
Low Noise LDO Regulator  
with Adjustable Current  
Limit and 3.3 V Logic  
http://onsemi.com  
Compatible Enable Input  
MARKING  
DIAGRAM  
The NCV47551 is a low noise low output current integrated low  
dropout regulator designed for use in harsh automotive environments.  
It includes wide operating temperature and input voltage ranges. The  
device is offered with adjustable voltage versions available in 3%  
output voltage accuracy. It has a high peak input voltage tolerance and  
reverse input voltage protection. It also provides overcurrent  
protection, overtemperature protection and enable for control of the  
state of the output voltage. The integrated current sense feature  
provides diagnosis and system protection functionality. The current  
limit of the device is adjustable by resistor connected to CSO pin.  
Voltage on CSO pin is proportional to output current.  
8
47551  
ALYW  
G
SOIC−8  
SUFFIX D  
CASE 751  
1
8
1
47551 = Specific Device Code  
A
L
Y
W
G
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb−Free Package  
Features  
• Adjustable Voltage Version (from 3.3 V to 20 V) 3% Output  
Voltage  
• Enable Input (3.3 V Logic Compatible Thresholds)  
• Adjustable Current Limit (from 100 mA to 20 mA) with 10%  
Accuracy  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 11 of this data sheet.  
• Protection Features:  
♦ Current Limitation  
♦ Thermal Shutdown  
♦ Reverse Input Voltage  
• This is a Pb−Free Device  
Typical Applications  
• Microphone Power Supply  
• Audio and Infotainment System  
• Navigation  
• Satellite Radio  
V
in  
V
out  
C *  
b
C
in  
R
R
1
2
1 mF  
EN  
NR  
NCV47551  
GND  
ADJ  
C
out  
10 mF  
CSO  
C
CSO  
R
CSO  
1 mF  
C
*
noise  
C *, C  
* − Optional for noise reduction.  
b
noise  
Figure 1. Application Schematic  
(See Application Section for more details)  
© Semiconductor Components Industries, LLC, v2013  
1
Publication Order Number:  
December, 2013 − Rev. 0  
NCV47551/D  
 
1234567...12

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