MAX17007EVKIT+ Maxim Integrated Products, MAX17007EVKIT+ Datasheet - Page 5

• Manufacturer Part Number: MAX17007EVKIT+
• Description: KIT EVAL FOR MAX17007
• Manufacturer: Maxim Integrated Products
• Series: Quick-PWM™r

Specifications of MAX17007EVKIT+

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 2, Non-Isolated
• Voltage - Output: 1.2V, 1.5V
• Current - Output: 12A, 12A
• Voltage - Input: 7 ~ 24V
• Regulator Topology: Buck
• Frequency - Switching: 270kHz, 330kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MAX17007
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

The MAX17007 EV kit features a 4-pin jumper (JU4) for
pulse-skipping control input. This four-level input deter-
mines the mode of operation under normal steady-state
conditions and dynamic output-voltage transitions. The
default configuration has a shunt installed across pins
1-3 for low-noise, forced-PWM mode. Table 6 lists the
other selectable jumper options. Refer to the Modes of
Operation section in the MAX17007 IC data sheet for
more information.
Table 6. Jumper JU4 Functions
* Default position.
** Not supported in combined mode.
The valley current-limit thresholds for OUT1 and OUT2
are set by configuring jumpers JU6 and JU5, respec-
tively. By default, pins 1-4 of jumpers JU5 and JU6 are
shorted by a PC trace. This sets the valley current-limit
threshold for each output to 30mV. To change the
threshold setting, cut the PC trace between pins 1-4,
install a 4-pin header, and configure the shunt accord-
ing to Tables 7 or 8. Refer to the Setting the Valley
Current Limit section in the MAX17007 IC datasheet for
more information.
Not installed**
POSITION
SHUNT
1-3*
1-2
1-4
Pulse-Skipping Control Input ( SKIP )
Connected to
Connected to
Connected to
SKIP PIN
_______________________________________________________________________________________
Open
GND
VDD
REF
Thresholds (ILIM1, ILIM2)
forced PWM during transitions
Low-noise mode, forced-PWM
forced PWM during transitions
forced PWM during transitions
Pulse-skipping mode without
Valley Current-Limit
Pulse-skipping mode with
Ultrasonic mode without
OPERATIONAL MODE
operation
MAX17007 Evaluation Kit
The switching frequencies for OUT1 and OUT2 are set
by external resistors R
OUT1 is configured for a switching frequency of
270kHz and OUT2 is configured for a switching fre-
quency of 330kHz. To reconfigure the switching fre-
quency of either output, select the output’s associated
R
where C
Table 7. Jumper JU6 Functions
* Default position.
Table 8. Jumper JU5 Functions
* Default position.
Not installed
Not installed
TON
POSITION
POSITION
SHUNT
SHUNT
1-4*
1-4*
1-2
1-3
1-2
1-3
resistor according to the following equation:
TON
T
SW
Switching Frequency (f
= 16.26pF.
Connected to GND
1 2
Connected to GND
Connected to VDD
Connected to VDD
Connected to REF
Connected to REF
,
=
ILIM1 PIN
ILIM2 PIN
f
SW
C
Open
Open
TON
1 2
,
TON1
(
=
R
T
TON
SW
and R
1
1 2
1 2
,
,
OUT1 CURRENT-LIMIT
OUT2 CURRENT-LIMIT
+
THRESHOLD (mV)
THRESHOLD (mV)
6 5
TON2
.
k
Ω
SW1
. By default,
)
15
60
30
45
15
60
30
45
, f
SW2
5
)