EVAL-ADP2311 User Guide
UG-653
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
ADP2311
, Dual, 1 A, 18 V Synchronous Step-Down
Regulator with Fail-Safe Voltage Monitoring
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 8
FEATURES
Input voltage: 4.5 V to 18 V
±1.0% output accuracy
Integrated MOSFET: 110 mΩ/60 mΩ typical
Continuous output current: 1 A/1 A
Power fail comparator generates warning
Power-on reset with programmable delay timer
Adjustable voltage monitor for power-down
Watchdog refresh input
Dual phase with 180° out of phase operation
Fixed switching frequency: 300 kHz
Internal compensation and soft start
Stable with low effective series resistance (ESR) output
ceramic capacitors
Precision enable input
Power feedback during power off
Undervoltage lockout (UVLO), overcurrent protection (OCP),
overvoltage protection (OVP), and thermal shutdown (TSD)
GENERAL DESCRIPTION
The
ADP2311
evaluation board is a complete, dual, 1 A step-down
regulator solution that allows users to evaluate the performance of
the
ADP2311
with a near ideal printed circuit board (PCB) layout.
The outputs of the
ADP2311
evaluation board are preset to 1.2 V
and 3.3 V for Channel 1 and Channel 2, respectively. The VIN
threshold of the power fail input is set at 8.99 V. Different
output and power fail input voltages can be achieved by
changing the appropriate passive components.
Full details on the
ADP2311
dual regulator are provided in the
ADP2311
data sheet, available from Analog Devices, Inc., which
should be consulted in conjunction with this user guide.
ADP2311
EVALUATION BOARD
Figure 1.
1
1
995-
0
01
