Analog Devices ADP1876 Evaluation Board ADP1876-EVALZ ADP1876-EVALZ データシート
製品コード
ADP1876-EVALZ
Evaluation Board User Guide
UG-334
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
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. 0 | Page 1 of 16
FEATURES
Input range: 10 V to 20 V
Two output voltages: 5 V and 1.8 V
Output current: 13 A per channel
Switching frequency: 600 kHz
Operates in PWM
Compact, low cost, and efficient design
Two output voltages: 5 V and 1.8 V
Output current: 13 A per channel
Switching frequency: 600 kHz
Operates in PWM
Compact, low cost, and efficient design
EVALUATION BOARD DESCRIPTION
This user guide describes the design, operation, and test results
of the ADP1876-EVALZ. The input range for this evaluation
board is 10 V to 20 V, and the two regulated output voltages are
set to 5 V (V
of the ADP1876-EVALZ. The input range for this evaluation
board is 10 V to 20 V, and the two regulated output voltages are
set to 5 V (V
OUT1
) and 1.8 V (V
OUT2
) with a maximum 13 A output
current. The power components, such as the MOFSETS, inductors,
and bulk input and output capacitors, were chosen to yield a low
system cost and good efficiency.
and bulk input and output capacitors, were chosen to yield a low
system cost and good efficiency.
The
is a dual-channel, step-down switching controller
with integrated drivers for external N-channel synchronous power
MOSFETs. The two PWM outputs are phase shifted 180°, which
reduces the input rms ripple current, thus minimizing the required
input capacitance.
In addition, boost diodes are integrated into the
MOSFETs. The two PWM outputs are phase shifted 180°, which
reduces the input rms ripple current, thus minimizing the required
input capacitance.
In addition, boost diodes are integrated into the
which lowers the overall system cost and component count. The
conduction mode.
The
The
includes externally adjustable soft start, output
overvoltage protection, externally adjustable current limit,
power good and tracking function for Channel 1. The
power good and tracking function for Channel 1. The
provides an output voltage accuracy of ±0.85% for a −40°C to
+85°C junction temperature and ±1.5% for a −40°C to +125°C
junction temperature. This controller can be powered from a
2.75 V to 20 V supply and is available in a 32-lead, 5 mm × 5 mm
lead frame chip scale package (LFCSP).
+85°C junction temperature and ±1.5% for a −40°C to +125°C
junction temperature. This controller can be powered from a
2.75 V to 20 V supply and is available in a 32-lead, 5 mm × 5 mm
lead frame chip scale package (LFCSP).
ADP1876-EVALZ EVALUATION BOARD
10272-
001
ADP1876
GND
TERMINAL
VIN
TERMINAL
TERMINAL
GND
TERMINAL
TERMINAL
V
OUT1
TERMINAL
V
OUT2
TERMINAL
GND
TERMINAL
TERMINAL
Figure 1.