Analog Devices MAX25262 Manual

Evaluates: MAX25262/MAX25263
General Description
The MAX25262/MAX25263 evaluation kits (EV kits) come
fully assembled and tested. The EV kits demonstrate the
MAX25262/MAX25263 synchronous buck converters. The
EV kits operate over a wide 3.5V to 65V input range. The
MAX25262EVKIT is populated with the MAX25262AFOA/
VY+, and the MAX25263EVKIT is populated with the
MAX25263AFOC/VY+. The EV kit output voltage is fixed
and easily configured with minimum component changes.
Other converters in the family can be tested on the same
EV kit; however, changing the IC or the output voltage
may also require changing other components. Consult
the IC data sheet for guidance on selecting the proper ICs
and external components. Output voltage quality can be
monitored by observing the PGOOD signal.
Benefits and Features
● Input Supply Range from 3.5V to 65V
● Output Voltage: 3.3V/5V Fixed and Adjustable
from 1V to 20V
● 2A/3A Output-Current Capability
● Frequency - Synchronization Input
● Spread Spectrum Available
● Voltage Monitoring PGOOD Output Available
● Proven PCB Layout
● Fully Assembled and Tested
Ordering Information appears at end of data sheet.
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Quick Start
Required Equipment
● MAX25262EVKIT/MAX25263EVKIT
● 65V, 3A power supply
● Appropriate resistive load, or an electronic load that
can sink 3A
● Digital multimeter (DMM)
● Oscilloscope
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation:
1) Verify that all jumpers are in their default positions, as
shown in
2) Connect the positive and negative terminals of the
power supply to the SUP and GND1 test pads, re-
spectively.
3) Set the power supply voltage to 24V and current limit
to 3A.
4) Turn on the power supply.
5) Using the DMM, verify that OUT is as requested.
6) Verify that the switching frequency is 2.1MHz/400kHz
(approximately) by monitoring the inductor switching
voltage with the oscilloscope.
7) Connect the positive and negative terminals of the
electronic load to OUT and GND, respectively.
8) Set the electronic load to the desired current at or
below 3A, or use an equivalent resistive load with an
appropriate power rating.
9) Adjust current limit on the power supply as necessary.
10) Turn on the power supply and electronic load.
11) Verify that voltage across the V
requested.
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MAX25262/MAX25263
Evaluation Kit
Table 1.
OUT
319-100605; Rev 1; 12/21
© 2021 Analog Devices, Inc. All rights reserved.
and GND is as