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IRDC3898-P1V2 Datasheet(PDF) 1 Page - International Rectifier

Part No. IRDC3898-P1V2
Description  USER GUIDE FOR IR3898 EVALUATION BOARD
Download  17 Pages
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Manufacturer  IRF [International Rectifier]
Direct Link  http://www.irf.com
Logo IRF - International Rectifier

IRDC3898-P1V2 Datasheet(HTML) 1 Page - International Rectifier

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IRDC3898-P1V2
12/8/2011
1
USER GUIDE FOR IR3898 EVALUATION BOARD
1.2Vout
DESCRIPTION
The
IR3898
is
a
synchronous
buck
converter,
providing
a
compact,
high
performance and flexible solution in a small
4mm X 5 mm Power QFN package.
Key features offered by the IR3898 include
internal Digital Soft Start/Soft Stop, precision
0.5Vreference
voltage,
Power
Good
,
thermal protection, programmable switching
frequency, Enable input, input under-voltage
lockout for proper start-up, enhanced line/
load regulation with feed forward, external
frequency
synchronization
with
smooth
clocking, internal LDO
and pre-bias start-
up.
Output over-current protection function is
implemented by sensing the voltage developed
across the on-resistance of the synchronous
Mosfet for optimum cost and performance and
the current limit is thermally compensated.
This user guide contains the schematic and bill
of materials for the IR3898 evaluation board.
The guide describes operation and use of the
evaluation board itself. Detailed
application
information for IR3898 is available in the
IR3898 data sheet.
BOARD FEATURES
V
in = +12V (+ 13.2V Max)
•Vout = +1.2V @ 0- 6A
F
s=600kHz
L= 1.0uH
C
in= 3x10uF (ceramic 1206) + 1X330uF (electrolytic)
C
out=4x22uF (ceramic 0805)
SupIRBuckTM


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