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NCV890203 PDF预览

NCV890203

更新时间: 2024-10-27 01:20:03
品牌 Logo 应用领域
安森美 - ONSEMI /
页数 文件大小 规格书
18页 162K
描述
Automotive Buck Switching Regulator

NCV890203 数据手册

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NCV890203  
2.0 A, 2 MHz Automotive  
Buck Switching Regulator  
with RSTB  
The NCV890203 is a fixed−frequency, monolithic, Buck switching  
regulator intended for Automotive, battery−connected applications  
that must operate with up to a 36 V input supply. The regulator is  
suitable for systems with low noise and small form factor  
requirements often encountered in automotive driver information  
systems. The NCV890203 is capable of converting the typical 4.5 V to  
18 V automotive input voltage range to outputs as low as 3.3 V at  
a constant switching frequency above the sensitive AM band,  
eliminating the need for costly filters and EMI countermeasures.  
A Reset pin signals when the output is in regulation, and a pin is  
provided to adjust the delay before the RSTB signal goes high.  
The NCV890203 also provides several protection features expected in  
Automotive power supply systems such as current limit, short circuit  
protection, and thermal shutdown. In addition, the high switching  
frequency produces low output voltage ripple even when using small  
inductor values and an all−ceramic output filter capacitor − forming  
a space−efficient switching regulator solution.  
www.onsemi.com  
MARKING DIAGRAM  
V8902  
03  
ALYWG  
DFN10  
CASE 485C  
G
A
L
Y
W
G
= Assembly Location  
= Wafer Lot  
= Year  
= Work Week  
= Pb−Free Device  
(Note: Microdot may be in either location)  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 17 of this data sheet.  
Features  
Internal N−Channel Power Switch  
1.4 Millisecond Internal Soft−Start  
Low V Operation Down to 4.5 V  
Thermal Shutdown (TSD)  
IN  
High V Operation to 36 V  
Low Shutdown Current  
IN  
Withstands Load Dump to 40 V  
Wettable Flanks DFN (pin edge plating)  
2 MHz Free−running Switching Frequency  
NCV Prefix for Automotive and Other Applications  
Requiring Unique Site and Control Change  
Logic level Enable Input Can be Directly Tied to  
Requirements; AEC−Q100 Qualified and PPAP Capable  
These Devices are Pb−Free and are RoHS Compliant  
Battery  
Reset with Adjustable Delay  
Applications  
2.2 A (min) Cycle−by−Cycle Peak Current Limit  
Audio  
Short Circuit Protection enhanced by Frequency  
Infotainment  
Safety − Vision Systems  
Instrumentation  
Foldback  
1.75% Output Voltage Tolerance  
Output Voltage Adjustable Down to 0.8 V  
© Semiconductor Components Industries, LLC, 2014  
1
Publication Order Number:  
November, 2014 − Rev. 0  
NCV890203/D  

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