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FAN21SV04

更新时间： 2024-12-01 06:58:43
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 稳压器
页数 文件大小 规格书
18页 787K
描述
TinyBuck™ 4A, 24V Single-Input Integrated Synchronous Buck Regulator

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FAN21SV04 数据手册

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August 2009  
FAN21SV04 — TinyBuck™ 4A, 24V Single-Input  
Integrated Synchronous Buck Regulator  
Features  
Description  
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Single-Supply Operation with 4A Output Current  
The FAN21SV04 TinyBuck™ is a highly efficient,  
small-footprint, programmable-frequency, 4A,  
integrated synchronous buck regulator.  
Wide Input Range with Dual Supply: 3.0V to 24V  
Wide Output Voltage Range: 0.8V to 80% VIN  
Over 94% Peak Efficiency  
FAN21SV04 contains both synchronous MOSFETs  
and a controller/driver with optimized interconnects in  
one package, which enables designers to solve high-  
current requirements in a small area with minimal  
external components, thereby reducing cost. On-  
board internal 5V regulator enables single-supply  
operation for input voltages >6.5V.  
1% Reference Accuracy Over Temperature  
Fully Synchronous Operation with Integrated  
Schottky Diode on Low-Side MOSFET Boosts  
Efficiency  
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Single Supply Device for VIN > 6.5V – 24V  
The FAN21SV04 can be configured to drive multiple  
slave devices OR synchronize to an external system  
clock. In slave mode, FAN21SV04 may be set up to  
be free-running in the absence of a master clock  
signal.  
Programmable Frequency Operation (200-  
600KHz)  
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Synchronizable to External Clock with  
Master/Slave Provisions  
External compensation, programmable switching  
frequency, and current-limit features allow for design  
optimization and flexibility. High-frequency operation  
allows for all-ceramic solutions.  
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Power-Good Signal  
Accepts Ceramic Capacitors on Output  
External Compensation for Flexible Design  
Starts on Pre-Bias Outputs  
Fairchild’s advanced BiCMOS power process,  
combined with low-RDS(ON) internal MOSFETs and a  
thermally efficient MLP package, provide the ability to  
dissipate high power in a small package. Integration  
helps minimize critical inductances, making layout  
simpler and more efficient compared to discrete  
solutions.  
Integrated Bootstrap Diode  
Programmable Over-Current Protection  
Under-Voltage, Over-Voltage, and Thermal-  
Shutdown Protections  
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5x6mm, 25-Pin, 3-Pad MLP Package  
Output over-voltage, under-voltage, over-current, and  
thermal-shutdown protections help protect the device  
from damage during fault conditions. FAN21SV04  
prevents pre-biased output discharge during startup  
in point-of-load applications.  
Applications  
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Servers & Telecom  
Graphics Cards & Displays  
Computing Systems  
Related Application Notes  
AN-8022 — TinyCalc™ Calculator  
Set-Top Boxes & Game Consoles  
Point-of-Load Regulation  
Ordering Information  
Operating  
Eco  
Packing  
Part Number  
Temperature Range Status  
Package  
Method  
FAN21SV04MPX  
FAN21SV04EMPX  
-10°C to 85°C  
-40°C to 85°C  
Green Molded Leadless Package (MLP) 5x6mm Tape and Reel  
Green Molded Leadless Package (MLP) 5x6mm Tape and Reel  
For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.  
© 2009 Fairchild Semiconductor Corporation  
FAN21SV04 • Rev. 1.0.1  
www.fairchildsemi.com  
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