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NCV8842_11 PDF预览

NCV8842_11

更新时间: 2024-10-26 12:24:59
品牌 Logo 应用领域
安森美 - ONSEMI 稳压器
页数 文件大小 规格书
16页 377K
描述
1.5 A, 170 kHz, Buck Regulator with Synchronization Capability

NCV8842_11 数据手册

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NCV8842  
1.5 A, 170 kHz, Buck  
Regulator with  
Synchronization Capability  
The NCV8842 is a 1.5 A buck regulator IC operating at a  
2
fixedfrequency of 170 kHz. The device uses the V t control  
http://onsemi.com  
architecture to provide unmatched transient response, the best overall  
regulation and the simplest loop compensation for today’s highspeed  
logic. The NCV8842 accommodates input voltages from 4.0 V to 40 V  
and contains synchronization circuitry.  
The onchip NPN transistor is capable of providing a minimum of  
1.5 A of output current, and is biased by an external “boost” capacitor  
to ensure saturation, thus minimizing onchip power dissipation.  
Protection circuitry includes thermal shutdown, cyclebycycle  
current limiting and frequency foldback.  
MARKING  
DIAGRAMS  
16  
SO16W EP  
PW SUFFIX  
CASE 751AG  
NCV8842  
16  
AWLYYWWG  
1
1
Features  
2
V Architecture Provides UltraFast Transient Response, Improved  
1
18  
Regulation and Simplified Design  
18LEAD DFN  
MN SUFFIX  
CASE 505  
18  
Wide Operating Range: 4 V to 40 V  
2.0% Error Amp Reference Voltage Tolerance  
NCV8842  
AWLYYWW G  
1
G
Switch Frequency Decrease of 4:1 in Short Circuit Conditions  
Reduces Short Circuit Power Dissipation  
BOOST Lead Allows “Bootstrapped” Operation to Maximize  
Efficiency  
Sync Function for Parallel Supply Operation or Noise Minimization  
Shutdown Lead Provides PowerDown Option  
1.0 mA Quiescent Current During PowerDown  
Thermal Shutdown  
SoftStart  
Exposed Pad Packages for Enhanced Thermal Characteristics  
NCV Prefix for Automotive and Other Applications Requiring Site  
and Change Controls  
8
SOIC8  
D SUFFIX  
CASE 751  
V8842  
ALYWE  
8
1
G
1
A
WL, L  
YY, Y  
= Assembly Location  
= Wafer Lot  
= Year  
WW, W = Work Week  
E
= Automotive Grade  
= PbFree Package  
(Note: Microdot may be in either location)  
G or G  
These are PbFree Devices  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 13 of this data sheet.  
© Semiconductor Components Industries, LLC, 2011  
1
Publication Order Number:  
July, 2011 Rev. 10  
NCV8842/D  

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