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Evaluate: MAX20004/MAX20006/MAX20008

MAX20006/MAX20008

Evaluation Kits

Detailed Description of Hardware

The MAX20006/MAX20008 EV kits come fully assembled

and tested. The MAX20006EVKIT is populated with

the MAX20006AFOA/VY+, and the MAX20008EVKIT is

populated with the MAX20008AFOA/VY+. 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.

Enable (EN)

Place a shunt in the 2-3 position on jumper JU1 to enable

the IC for normal operation. To place the device into shut-

down mode, move the shunt on JU1 to the 2-1 position.

Synchronization and Switching

The IC has the ability to operate in either forced-

PWM mode or in SKIP mode. Place a shunt in the 2-1

position on JU2 to select forced-PWM mode at the

resistor-programmed frequency. Removing the shunt from

JU2 or placing a shunt in the 2-3 position on jumper JU2

causes the IC to enter SKIP mode for maximum light load

efficiency. With a shunt in the 2-3 position on jumper JU2,

the switching frequency can be synchronized to an appro-

priate external signal applied to the SYNC input terminal.

Setting the Switching Frequency (FOSC)

The IC switching frequency is set by a resistor connected

from FOSC to AGND. Refer to the IC data sheet for

selecting the resistor value.

RESET Output

The EV kit provides a RESET output to monitor the status

of the device output. The RESET output is an open-drain

output from the IC with an external pullup resistor to

VOUT on the EV kits. Refer to the IC data sheet for details

on the RESET functionality.

Output Voltage Setting

Populating R9 with a 0Ω jumper connects FB to BIAS for

a fixed +5V (EV kit default output) or a fixed +3.3V output

voltage depending on the IC version. To set the output to

other voltages between 1V and 10V, remove R9, populate

R1 with a 0Ω jumper, and populate R7/R8/C14 with the

appropriate values. Other component modifications might

also be required. Refer to the IC data sheet for details on

setting the output voltage.

Table 1. Enable Control (JU1)

Table 2. Operating Mode Control (JU2)

*Default configuration.

*Default configuration.

#Denotes RoHS compliant.

SHUNT

POSITION

EN PIN

VOUT

2-3*

EN tied to VSUP

Enabled

2-1

EN tied to GND

Disabled

SHUNT

POSITION

SYNC PIN

MODE

2-1*

SYNC tied to

BIAS

Forced PWM

2-3

SYNC pulled to

GND with R2

SKIP or

external SYNC

PART

TYPE

MAX20006EVKIT#

EV Kit

MAX20008EVKIT#

EV Kit

Ordering Information