MAX1549EVKIT Maxim Integrated, MAX1549EVKIT Datasheet - Page 4

• Manufacturer Part Number: MAX1549EVKIT
• Description: Power Management IC Development Tools
• Manufacturer: Maxim Integrated
• Series: MAX1549r

The EV kit output is preset to 0.7V/1.0V/1.3V/1.5V
(OUT1). G0 (JU4) and G1 (JU5) gate inputs select the
OUT1 voltage (see Table 4). However, OUT1 can also
be adjusted between 0.5V and 2.0V by selecting R10–
R14 values. Refer to the MAX1549 data sheet Output
Voltage section for more information.
The MAX1549 provides a fixed 2.5V output (OUT2)
when FB2 is connected to GND (R20 = open, R21 = 0,
R19 = open) or a fixed 1.8V output when FB2 is con-
MAX1549 Evaluation Kit
4
_______________________________________________________________________________________
Evaluating Other Dynamic
Output Voltages (OUT1)
Output Voltages (OUT2)
Evaluating Other Fixed
nected to VCC (R20 = open, R21 = open, R19 = 0).
OUT2 can also be adjusted from 0.5V to 2.7V by using
a resistive voltage-divider formed by R20 and R21 (R19
= open). The MAX1549 regulates FB2 to a fixed refer-
ence voltage (0.5V).
The adjusted output voltage is:
A 330pF to 1000pF feed-forward bypass capacitor (C26)
reduces duty-cycle jitter and feedback noise.
Refer to the MAX1549 data sheet for selection of out-
put-capacitor and inductor values for different output
voltages.
V
OUT2
= V
FB2
(1 + R20 / R21) where V
FB2
= 0.5V