Evaluation Board User Guide
UG-456
One
Technology Way
•
P.O. Box 9106
•
Norwood, MA 02062-9106, U.S.A.
•
Tel: 781.329.4700
•
Fax: 781.461.3113
•
www.analog.com
Evaluation Board for the
ADP2442
36 V,
1 A, Synchronous, Step-Down DC-to-DC
Regulator with External Clock Synchronization
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 12
FEATURES
Full featured evaluation board for the
ADP2442
Configurable synchronous step-down dc-to-dc switching
regulator
Operating voltage range: V
IN
= 6 V to 36 V
Output voltage: 5 V or adjustable
1 A maximum load
Switching frequency: 500 kHz or adjustable switching
frequency of 300 kHz to 1 MHz
Power saving mode at light load
Precision enabled input pin
Current limit protection
Power good output
SYNC/MODE pin for external synchronization or mode
selection
53 mm × 53 mm board size
DOCUMENTS NEEDED
ADP2442
data sheet
UG-407
user guide
GENERAL DESCRIPTION
The
ADP2442-EVALZ
evaluation board is a complete, dc-to-dc
switching regulator design based on the
ADP2442
, a configurable,
1 A, synchronous, step-down dc-to-dc regulator.
The
ADP2442
is a synchronous, step-down dc-to-dc switching
regulator that uses a current mode pulse-width modulation
(PWM) control scheme. The
ADP2442
can be configured for
pulse skip mode at light load or forced PWM mode. The power
switch and synchronous rectifier are integrated for minimal
external part count and high efficiency. The
ADP2442
is
optimized for operation with small ferrite core inductors and
ceramic capacitors to deliver the maximum output power per
square millimeter of the printed circuit board (PCB) area.
The
ADP2442-EVALZ
is available with 5 V at a 1 A output, with
a switching frequency set to 500 kHz. If needed, the
ADP2442-
EVALZ
configuration can be modified by changing the values
of the appropriate passive components.
Complete specifications for the
ADP2442
device can be found
in the
ADP2442
data sheet, which is available from Analog
Devices, Inc., and should be consulted in conjunction with this
user guide when using the evaluation board.
ADP2442-EVALZ
Figure 1.
10949-
001
