Datasheet

MAX15066 Evaluation Kit
Evaluates: MAX15066
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Setting Output Voltage
The EV kit can be adjusted from 0.606V to (0.9 x V
IN
)
by changing the values of R5 and R6. To determine the
value of the resistor-divider, first select R6 from 5kI to
50kI and then use the following equation to calculate
R5:
OUT
FB
V
R5 R6 1
V
 
= × −
 
 
where the feedback threshold voltage V
FB
= 0.606V
(typ). When regulating an output of 0.606V, short FB to
OUT and keep R6 connected from FB to GND.
If a different output voltage is desired, revisit the feedback
resistor-divider (R5), the inductor, and output-capacitor
calculations (refer to the Inductor Selection and Output-
Capacitor Selection sections in the MAX15066 IC data
sheet). The compensation components (R7, C13, C14,
and C15) must be recalculated to ensure loop stability
(refer to the Compensation Design Guidelines section in
the MAX15066 IC data sheet).
Regulator Enable (EN)
To shut down the converter, install a shunt on jumper EN.
For normal operation, remove the shunt from EN. See
Table 1 to configure jumper EN.
Power Good (PGOOD)
PGOOD is an open-drain output that goes high
impedance when V
FB
exceeds 0.56V (typ). PGOOD
is internally pulled low when V
FB
falls below 0.545V
(typ). PGOOD also becomes low during shutdown. On
the EV kit, the PGOOD test point is pulled up to VDD
through resistor R8. Use the GND PCB pad as a ground
reference for this signal.
Table 1. Regulator Enable (EN) Jumper
EN Description
*Default position.
SHUNT POSITION DESCRIPTION
Installed Disables the device
Not installed* Normal operation