IRDC3832W Datasheet, PDF (1/16 Pages) International Rectifier – USER GUIDE FOR IR3832W EVALUATION BOARD

IRDC3832W
SupIRBuck^TM
USER GUIDE FOR IR3832W EVALUATION BOARD
DESCRIPTION
The IR3832W is a synchronous buck
converter, providing a compact, high
performance and flexible solution in a small
5mmx6mm Power QFN package.
Key features offered by the IR3832W
include programmable soft-start ramp,
Power Good, thermal protection,
programmable switching frequency, tracking
input, enable input, input under-voltage
lockout for proper start-up, and pre-bias
start-up.
An output over-current protection function is
implemented by sensing the voltage developed
across the on-resistance of the synchronous
rectifier MOSFET for optimum cost and
performance.
This user guide contains the schematic and bill
of materials for the IR3832W evaluation board.
The guide describes operation and use of the
evaluation board itself. Detailed application
information for IR3832W is available in the
IR3832W data sheet.
BOARD FEATURES
• V_in = +12V (13.2V Max)
• V_cc= +5V (5.5V Max)
• V_out = +0.75V @ 0- ±4A
• F_s = 400kHz
• L = 1.50uH
• C_in= 2x10uF (ceramic 1206) + 330uF (electrolytic)
• C_out= 6x22uF (ceramic 0805)
10/30/09
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