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FAN2108 반도체 회로 부품 판매점

Integrated Synchronous Buck Regulator



Fairchild Semiconductor 로고
Fairchild Semiconductor
FAN2108 데이터시트, 핀배열, 회로
September 2008
FAN2108www.datasheet4u.com — TinyBuck™
3-24V Input, 8A, High-Efficiency, Integrated Synchronous
Buck Regulator
Features
ƒ Wide Input Voltage Range: 3V-24V
ƒ Wide Output Voltage Range: 0.8V to 80% VIN
ƒ 8A Output Current
ƒ Programmable Frequency Operation: 200KHz to
600KHz
ƒ Over 95% Peak Efficiency
ƒ Integrated Schottky Diode on Low-side MOSFET
Boosts Efficiency
ƒ Internal Bootstrap diode
ƒ Power-Good Signal
ƒ Pre-Bias Startup
ƒ Accepts Ceramic Capacitors on Output
ƒ External Compensation for Flexible Design
ƒ Input Under-Voltage Lockout
ƒ Programmable Current Limit
ƒ Under-Voltage, Over-Voltage, and Thermal
Shutdown Protections
ƒ Internal Soft-Start
ƒ 5x6mm, 25-Pin, 3-Pad MLP Package
Applications
ƒ Servers
ƒ Point-of-Load Regulation
ƒ High-End Computing Systems
ƒ Graphics Cards
ƒ Battery-Powered Equipment
ƒ Set-Top Boxes
Description
The FAN2108 TinyBuck™ is a highly efficient, small
footprint, 8A, synchronous buck regulator.
The FAN2108 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.
External compensation, programmable switching
frequency, and current limit features allow design
optimization and flexibility.
The summing current mode modulator uses lossless
current sensing for current feedback and over-current
protection. Voltage feedforward helps operation over a
wide input voltage range.
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.
Output over-voltage, under-voltage, and thermal
shutdown protections help protect the device from
damage during fault conditions. FAN2108 prevents pre-
biased output discharge during startup in point-of-load
applications.
Ordering Information
Part Number
FAN2108MPX
FAN2108EMPX
Operating
Temperature Range
-10°C to 85°C
-40°C to 85°C
Package
Molded Leadless Package (MLP) 5x6mm
Molded Leadless Package (MLP) 5x6mm
Eco
Status
Green
Green
Packing
Method
Tape and Reel
Tape and Reel
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FAN2108 • Rev. 1.0.0
www.fairchildsemi.com


FAN2108 데이터시트, 핀배열, 회로
Typical Application
www.datasheet4u.com
Block Diagram
Figure 1. Typical Application Diagram
© 2008 Fairchild Semiconductor Corporation
FAN2108 • Rev. 1.0.0
Figure 2. Block Diagram
2
www.fairchildsemi.com




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FAN2108 regulator

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