Evaluates: MAX17220–MAX17225
MAX17222 Evaluation Kit
General Description
Quick Start
The MAX17222 evaluation kit (EV kit) evaluates the
MAX17220–MAX17225 IC family of ultra-low quiescent
current step-up DC-DC converters. The MAX17222 EV
kit features two independent circuits to evaluate two
different IC packages of the MAX17220–MAX17225
family. Both circuits on the EV kit operate over an input
range of 400mV to 5.5V, depending on load, with 0.88V
typical startup with 3kΩ load. Each circuit provides
resistor-configurable output voltages from 1.8V to 5V in
100mV/step.
Required Equipment
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MAX17222 EV kit
1.8V to 5V, 3A DC power supply
Electronic load capable of 225mA
Digital voltmeter (DVM)
Procedure
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation.
Caution: Do not turn on power supply until all
connections are completed.
The EV kit comes with the MAX17222ELT+ and
MAX17222ENT+ installed.
Testing the 3V Output Circuit
Features
1) Verify that jumper JU101 is in its default position, as
shown in Table 2.
2) Connect the power supply between the IN and nearest
GND terminal posts.
● Two Independent Circuits on One Board
• Evaluates the MAX17220–MAX17225 IC Family in
a 6-pin µDFN
3) Connect the electronic load between the 3V output
and nearest GND terminal posts.
• Evaluates the MAX17220–MAX17225 IC Family in
a 6-pin Wafer-Level Package (WLP)
4) Connect the DVM between the 3V output and nearest
GND terminal posts.
5) Set the input power supply to 1.8V and turn on the
power supply.
● 400mV to 5.5V Input Range
● 1.8V to 5V Configurable Output Voltage in
100mV/step
6) Set the electronic load to 225mA and enable the
electronic load.
7) Verify that the voltage at the 3V terminal post is
approximately 3V.
● Up to 100mA/225mA/425mA Output Current
● Proven 2-Layer 1oz Copper PCB Layout
● Demonstrates Compact Solution Size
● Fully Assemble and Tested
Testing the 5V Output Circuit
1) Verify that jumper JU1 is in its default position, as
shown in Table 1.
MAX17222 EV Kit Files
2) Connect the power supply between the IN1 and
nearest GND1 terminal posts.
3) Connect the electronic load between the 5V output
and nearest GND1 terminal posts.
4) Connect the DVM between the 5V output and a
nearest GND1 terminal posts.
FILE
DESCRIPTION
MAX17222 EV BOM
EV Kit Bill of Material
MAX17222 EV PCB Layout
EV Kit Layout
EV Kit Schematic
Diagrams
MAX17222 EV Schematic
5) Set the input power supply to 3V, and turn on the
power supply.
6) Set the electronic load to 225mA, and enable the
electronic load.
MAX17222 EV Minimal
Component Schematic
Minimal Component Circuit
7) Verify that the voltage at the 5V terminal post is
approximately 5V.
Ordering Information appears at end of data sheet.
19-8762; Rev 5; 9/20