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FAN5182QSCX_NA3E229_NL Datasheet(PDF) 1 Page - Fairchild Semiconductor

Part # FAN5182QSCX_NA3E229_NL
Description  Adjustable Output, 1-, 2-, or 3-Phase Synchronous Buck Controller
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN5182QSCX_NA3E229_NL Datasheet(HTML) 1 Page - Fairchild Semiconductor

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March 2007
© 2005 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5182 Rev. 1.1.1
FAN5182 — Adjustable Output, 1-, 2-, or 3-Phase
Synchronous Buck Controller
Features
Selectable 1-, 2-, or 3-Phase Operation at up to
1MHz per Phase
Accuracy:
-
FAN5182
2%
-
FAN5182_NA3E229
1%
-
FAN5182_NA3E231
3%
Externally Adjustable 0.8V to 5V Output from a
12V Supply
Logic-Level PWM Outputs for Interface to External
High-Power Drivers
Active Current Balancing Between all Phases
Built-in Power-Good / Crowbar Functions
Programmable Over-Current Protection with
Adjustable Latch-Off Delay
Applications
Auxiliary Supplies
DDR Memory Supplies
Point-of-Load Supplies
Description
The FAN5182 is a highly efficient, multiphase,
synchronous
buck
switching
regulator
controller
optimized for converting a 12V main supply into a high-
current, low-voltage supply for use in point-of-load (POL)
applications. It uses a multi-loop PWM architecture to
drive the logic-level outputs at a programmable
switching frequency that can be optimized for regulator
size and efficiency. The phase relationship of the output
signals can be programmed to provide 1-, 2-, or 3-phase
operation, allowing for construction of up to three
complementary, interleaved buck switching stages.
The FAN5182 provides accurate and reliable over-
current protection and adjustable current limiting.
The FAN5182 is specified over the commercial
temperature range of 0°C to +85°C and is available in a
20-lead Quarter-Size Outline Package (QSOP).
Ordering Information
Part Number
Temperature
Range
Pb-
Free
Package
Packing
Method
Quantity
per Reel
FAN5182QSCX_NL
0°C to 85°C
Yes
QSOP-20L
Tape and Reel
2500
FAN5182QSCX_NA3E229_NL
0°C to 85°C
Yes
QSOP-20L
Tape and Reel
2500
FAN5182QSCX_NA3E231_NL
0°C to 85°C
Yes
QSOP-20L
Tape and Reel
2500


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