IRDC3822A International Rectifier, IRDC3822A Datasheet - Page 2

• Manufacturer Part Number: IRDC3822A
• Description: BOARD EVAL SYNC BUCK CONVERTER
• Manufacturer: International Rectifier

DESCRIPTION
The IR3822A is a synchronous buck
converter,
performance and flexible solution in a small
5mmx6mm Power QFN package.
Key features offered by the IR3822A include
programmable soft-start ramp, precision
0.6V
Power Good
300kHz switching frequency requiring
external component, input under-voltage
lockout for proper start-up, and pre-bias
start-up.
Rev 0.0
02/22/2008
SupIRBuck
BOARD FEATURES
reference
•
•
•
•
•
V
V
L= 2.2uH
C
C
in
out
in
out
USER GUIDE FOR IR3822A EVALUATION BOARD
providing
= 3x10uF (ceramic 1206) + 330uF (electrolytic)
= +12V (13.2V Max)
= 6x22uF (ceramic 0805)
= +1.8V @ 0- 6A
,
thermal protection, fixed
voltage,
a
compact,
TM
programmable
high
no
An output over-current protection function is
implemented by sensing the voltage developed
across the on-resistance of the synchronous
rectifier
performance.
This user guide contains the schematic and bill
of materials for the IR3822A evaluation board.
The guide describes operation and use of the
evaluation board itself. Detailed
information for IR3822A is available in the
IR3822A data sheet.
MOSFET
for
IRDC3822A
optimum
application
cost
and
2