Evaluation Board User Guide
UG-189
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P.O.
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Norwood,
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02062-9106,
U.S.A.
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www.analog.com
Evaluation Board for the 2 A/3 A, 20 V, Nonsynchronous Step-Down Regulators
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 12
FEATURES
Wide input voltage range: 3.0 V to 20 V
Maximum load current
2 A for ADP2302
3 A for ADP2303
±1.5% output accuracy over temperature
Output voltage down to 0.8 V
700 kHz switching frequency
Current-mode control architecture
Automatic PFM/PWM mode
Precision enable pin with hysteresis
Integrated high-side MOSFET
Integrated bootstrap diode
Internal compensation and soft start
Power-good output
Undervoltage lockout (UVLO)
Overcurrent protection (OCP)
Thermal shutdown (TSD)
8-lead SOIC package with exposed paddle
GENERAL DESCRIPTION
The
ADP2302
/
ADP2303
are 2 A/3 A, 20 V, nonsynchronous
step-down, dc-to-dc regulators with an integrated power MOSFET
in a SOIC package with an exposed paddle. The ADP2302/
ADP2303 evaluation boards are complete buck regulator solutions
that allow users to evaluate the performance of the regulators.
The ADP2302/ADP2303 integrated soft-start circuitry prevents
inrush current at power-up. The power-good output indicates
that the output voltage is regulated within tolerance, and it can
be used to sequence devices that have an enable input. The
precision enable feature allows the part to be easily sequenced
from external supplies. Other key features include undervoltage
lockout (UVLO), output overvoltage protection (OVP), thermal
shutdown (TSD), and overcurrent protection (OCP). Full details on
the ADP2302/ADP2303 are provided in the ADP2302/ADP2303
data sheet available from Analog Devices, Inc., which should be
consulted in conjunction with this user guide.
ADP2302/ADP2303 EVALUATION BOARD
09
31
5-
0
01
Figure 1. ADP2302/ADP2303 Evaluation Board
