Analog Devices ADP2381 Evaluation Board ADP2381-EVALZ ADP2381-EVALZ データシート
製品コード
ADP2381-EVALZ
Evaluation Board User Guide
UG-504
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
and
, 20 V, 4 A/6 A Synchronous
Step-Down Regulators with Low-Side Driver
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 12
FEATURES
Input voltage: 4.5 V to 20 V
±1% output voltage accuracy
Integrated 44 mΩ high-side MOSFET
Continuous output current
±1% output voltage accuracy
Integrated 44 mΩ high-side MOSFET
Continuous output current
4 A for the ADP2380
6 A for the ADP2381
6 A for the ADP2381
Programmable switching frequency: 250 kHz to 1.4 MHz
Synchronizes to external clock: 250 kHz to 1.4 MHz
180° out-of-phase synchronization
Programmable UVLO
Power-good output
External compensation
Internal soft start with external adjustable option
Startup into a precharged output
Synchronizes to external clock: 250 kHz to 1.4 MHz
180° out-of-phase synchronization
Programmable UVLO
Power-good output
External compensation
Internal soft start with external adjustable option
Startup into a precharged output
GENERAL DESCRIPTION
The
evaluation board is a complete, 4 A/6 A,
with a nearly
ideal printed circuit board (PCB) layout.
The switching frequency can be programmed between 250 kHz
and 1.4 MHz, or it can be synchronized to an external clock with
a 180° phase shift, which provides the possibility for a stackable,
multiphase power solution.
The output of the
The switching frequency can be programmed between 250 kHz
and 1.4 MHz, or it can be synchronized to an external clock with
a 180° phase shift, which provides the possibility for a stackable,
multiphase power solution.
The output of the
evaluation board is preset
to 3.3 V, and the switching frequency is set to 500 kHz. Different
output voltage settings can be achieved by changing the appropriate
passive components. The ambient temperature operating range is
−40°C to +85°C.
Full details about the
output voltage settings can be achieved by changing the appropriate
passive components. The ambient temperature operating range is
−40°C to +85°C.
Full details about the
and
regulators are
provided in the
and
data sheets, which are
available from Analog Devices, Inc. The data sheets should be
consulted in conjunction with this user guide.
consulted in conjunction with this user guide.
DEMO BOARD
1
1203-
001
Figure 1.