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NCV51411

更新时间： 2024-11-23 04:13:35
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 182K
描述
1.5 A, 260 kHz, Low Voltage Buck Regulator with Synchronization Capability

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NCV51411  
1.5 A, 260 kHz, Low Voltage  
Buck Regulator with  
Synchronization Capability  
The NCV51411 is a 1.5 A buck regulator IC operating at a  
2
fixed−frequency of 260 kHz. The device uses the V t control  
http://onsemi.com  
MARKING  
architecture to provide unmatched transient response, the best overall  
regulation and the simplest loop compensation for today’s high−speed  
logic. The NCV51411 accommodates input voltages from 4.5 V to  
40 V and contains synchronization circuitry.  
DIAGRAMS  
8
The on−chip 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 on−chip power dissipation.  
Protection circuitry includes thermal shutdown, cycle−by−cycle  
current limiting and frequency foldback. The NCV51411 is  
functionally pin−compatible with the LT1375.  
SO−8  
D SUFFIX  
CASE 751  
51411  
ALYWE  
G
8
1
1
16  
Features  
2
• V Architecture Provides Ultra−Fast Transient Response, Improved  
SO−16 WB  
PW SUFFIX  
CASE 751AG  
NCV51411  
AWLYYWWG  
16  
Regulation and Simplified Design  
• 2.0% Error Amp Reference Voltage Tolerance  
• Switch Frequency Decrease of 4:1 in Short Circuit Conditions  
Reduces Short Circuit Power Dissipation  
1
1
• BOOST Lead Allows “Bootstrapped” Operation to Maximize  
Efficiency  
• Sync Function for Parallel Supply Operation or Noise Minimization  
1
18  
18  
• Shutdown Lead Provides Power−Down Option  
• 85 mA Quiescent Current During Power−Down  
• Thermal Shutdown  
NCV51411  
18−LEAD DFN  
MN SUFFIX  
CASE 505  
AWLYYWW G  
1
G
• Soft−Start  
• Pin Compatible with LT1375 (SO−8 Version)  
• NCV Prefix for Automotive and Other Applications Requiring Site  
and Control Changes  
• Pb−Free Packages are Available  
A
L, WL  
Y, YY  
= Assembly Location  
= Wafer Lot  
= Year  
W, WW = Work Week  
E
= Automotive Grade  
G or G = Pb−Free Package  
(Note: Microdot may be in either location)  
ORDERING INFORMATION  
See detailed ordering and shipping information in the package  
dimensions section on page 13 of this data sheet.  
©
Semiconductor Components Industries, LLC, 2006  
1
Publication Order Number:  
April, 2006 − Rev. 12  
NCV51411/D  
1234567...16

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