MAX1586AEVCMAXQU Maxim Integrated, MAX1586AEVCMAXQU Datasheet - Page 6

• Manufacturer Part Number: MAX1586AEVCMAXQU
• Description: Power Management IC Development Tools MAX1586A Evaluation Kit/Evaluation System
• Manufacturer: Maxim Integrated
• Series: MAX1586A, MAX1586B, MAX1586C, MAX1587A, MAX1587Cr

Table 3. Output Enable (JU1–JU6)
Jumpers JU1–JU6 control the on/off state of the
MAX1586A EV kit VCC_I/O, VCC_MEM, VCC_CORE,
VCC_PLL, VCC_SRAM, and VCC_USIM outputs.
Removing the shunt allows the output enable function
to be controlled by an external signal source. See
Table 3 for output enable shunt positions.
Jumper JU8 controls the pulse-skipping mode of the
VCC_CORE output. See Table 4 for pulse-skipping
mode shunt positions.
MAX1586A Evaluation Kit/
Evaluation System
*Default configuration: JU1 (1-2), JU2 (1-2), JU3 (1-2), JU4 (1-2),
JU5 (1-2), JU6 (1-2)
6
JUMPER
(ON1)
(ON2)
(ON3)
(ON4)
(ON5)
(ON6)
JU1
JU2
JU3
JU4
JU5
JU6
_______________________________________________________________________________________
Not installed
Not installed
Not installed
Not installed
Not installed
Not installed
POSITION
SHUNT
1-2*
1-2*
1-2*
1-2*
1-2*
1-2*
2-3
2-3
2-3
2-3
2-3
2-3
VCC_I/O output enabled.
VCC_I/O output disabled.
ON1 controlled by an external signal
source.
VCC_MEM output enabled.
VCC_MEM output disabled.
ON2 controlled by an external signal
source.
VCC_CORE output enabled.
VCC_CORE output disabled.
ON3 controlled by an external signal
source.
VCC_PLL output enabled.
VCC_PLL output disabled.
ON4 controlled by an external signal
source.
VCC_SRAM output enabled.
VCC_SRAM output disabled.
ON5 controlled by an external signal
source.
VCC_USIM output enabled.
VCC_USIM output disabled.
ON6 controlled by an external signal
source.
Pulse-Skipping Mode
DESCRIPTION
Output Enables
The VCC_I/O (I/O) output voltage can be adjusted from
its default value of 3.3V. Cut the trace at R12 and install
a 0Ω resistor at R24 to set the I/O voltage to 3.0V. To
set the I/O voltage to an alternative value, cut the trace
at R12 and install resistors at R10 and R12. Use the
equation below to calculate resistor values:
where:
The VCC_MEM (MEM) output voltage can be adjusted
from its default value of 2.5V. Cut the trace at R13 and
install a 0Ω resistor at R18 to set the MEM voltage to
1.8V. To set the MEM voltage to an alternative value, cut
the trace at R13 and install resistors at R11 and R13.
Use the equation below to calculate resistor values:
where:
Table 4. Pulse-Skipping Mode Selection
(JU8)
*Default configuration: JU8 (2-3)
POSITION
SHUNT
2-3*
1-2
R
VCC_I/O = desired I/O voltage
V
R
VCC_MEM = desired MEM voltage
V
12
FB1
13
FB2
= 100kΩ
= 100kΩ
= 1.25V
= 1.25V
R
R
VCC_CORE pulse-skipping mode disabled
(forced PWM).
VCC_CORE pulse-skipping mode enabled.
11
10
=
=
R
R
13
12
Adjusting the MEM Voltage
x
x
Adjusting the I/O Voltage






VCC MEM
VCC I O
DESCRIPTION
V
V
_
FB
FB
_ /
2
1
−
−
1
1





