Analog Devices ADP2147 Evaluation Board ADP2147CB-150EVALZ ADP2147CB-150EVALZ データシート
製品コード
ADP2147CB-150EVALZ
Evaluation Board User Guide
UG-270
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 800 mA, 3 MHz Buck Regulator
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 8
FEATURES
Full-featured evaluation board for the
Standalone capability
Simple device measurements, including line and load
Simple device measurements, including line and load
regulation, demonstrable with
A single voltage supply (added indent)
A voltmeter
A current meter
Load resistors
A voltmeter
A current meter
Load resistors
Easy access to external components
GENERAL DESCRIPTION
The ADP2147 is a high efficiency, low quiescent current,
synchronous, step-down, dc-to-dc converter.
synchronous, step-down, dc-to-dc converter.
The buck regulator automatically switches operating modes,
depending on the load current level. At higher output loads, the
buck regulator operates in PWM mode. When the load current
falls below a predefined threshold, the regulators operate in
power save mode (PSM), improving the light-load efficiency.
The output voltage can be changed between two different
settings under the control of a VSEL pin.
depending on the load current level. At higher output loads, the
buck regulator operates in PWM mode. When the load current
falls below a predefined threshold, the regulators operate in
power save mode (PSM), improving the light-load efficiency.
The output voltage can be changed between two different
settings under the control of a VSEL pin.
The 3 MHz switching frequency minimizes the size of external
components. Full details on the ADP2147 are provided in the
ADP2147 data sheet available from Analog Devices, Inc., which
should be consulted in conjunction with thisuser guide.
components. Full details on the ADP2147 are provided in the
ADP2147 data sheet available from Analog Devices, Inc., which
should be consulted in conjunction with thisuser guide.
DIGITAL PICTURE OF THE EVALUATION BOARD
09
807
-001
Figure 1.