MAX15046BEVKIT+ Maxim Integrated Products, MAX15046BEVKIT+ Datasheet - Page 3

• Manufacturer Part Number: MAX15046BEVKIT+
• Description: KIT FOR MAX1504 SYNC BUCK CTLR
• Manufacturer: Maxim Integrated Products

Specifications of MAX15046BEVKIT+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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The MAX15046B EV kit is fully assembled and test-
ed. Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all
connections are completed.
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The MAX15046B EV kit is a fully assembled and tested
circuit board that contains all the components neces-
sary to evaluate the performance of the MAX15046B
10A synchronous step-down controller. The circuit uses
a MAX15046B step-down controller IC to implement a
step-down synchronous DC-DC converter circuit. The
MAX15046B EV kit is designed to operate from a single
DC power supply that provides 5V to 40V and 7A of cur-
rent. For improved efficiency, the MAX15046B controller
can also be operated using a 4.5V to 5.5V power source
applied at the VIN and PGND PCB pads and shorting
together (JU1) the MAX15046B IC IN and VCC inputs.
When operating the MAX15046B EV kit using separate
power-supply sources at the VIN connector and VCC
PCB pads, apply power at the VIN and PGND connec-
tors and then the VCC and GND PCB pads.
Detailed Description of Hardware
Adjustable 5V to 40V, 7A DC power supply
Electronic load capable of sinking up to 10A
(e.g., HP6060B)
Two voltmeters
Verify that a shunt is not installed on jumper JU1
(VIN input source for U1).
Install a shunt on pins 1-2 of jumper JU2 (VOUT
enabled).
Connect a voltmeter to the VOUT and PGND PCB
pads.
Connect a voltmeter to the PGOOD and GND PCB
pads.
Connect a 10A electronic load to the VOUT and
PGND banana jack connectors.
Connect a DC power supply to the VIN and PGND
banana jack connectors and set the voltage to 24V.
Enable the power supply.
Enable the electronic load and set it to 5A.
Verify that the voltmeters at VOUT and PGOOD are
3.3V and approximately 5.2V, respectively.
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Required Equipment
Quick Start
Procedure
MAX15046B Evaluation Kit
The MAX15046B EV kit converter is configured to 3.3V
and provides up to 10A output current. The switching
frequency is set to 350kHz using resistor R14. The EV kit
features PCB pads to evaluate the enable input signal
(EN) and to monitor the power-good (PGOOD) output
signal.
Banana jack connectors VIN and PGND connect the
power source for the converter. The MAX15046B EV
kit converter output performance is optimized over the
5V to 40V VIN input voltage, while providing up to 10A
output current. The MAX15046B EV kit can operate at
higher output currents; however, performance may be
degraded due to the limitation of the components used
on the circuit, which might require reevaluation.
The MAX15046B EV kit features an option to select the
bias input for the MAX15046B IC controller when config-
uring the EV kit to operate with an input source less than
6V. Jumper JU1 selects the input-voltage source for the
MAX15046B IC controller VCC pin. Remove the shunt on
jumper JU1 to power the MAX15046B IC using the power
source applied at the VIN and PGND banana jack con-
nectors. The input-voltage range at VIN in this configu-
ration is 5.5V to 40V. When operating the MAX15046B
EV kit using separate power-supply sources at the VIN
connector and VCC PCB pads, apply power at the VIN
and PGND connectors first and then the VCC and GND
PCB pads.
To operate with a source less than 6V, install a shunt
across jumper JU1. Then power the MAX15046B EV kit
VIN input using a power source applied at the VIN and
PGND PCB pads. Note that the power source applied to
the VIN PCB pad in this configuration has a 4.5V to 5.5V
input-voltage range.
Table 1. MAX15046B Bias Input
Configuration (JU1)
Not installed
POSITION
Installed
SHUNT
Connected to VCC
MAX15046B IC Bias Input (JU1)
Connected to VIN
MAX15046B IN
PIN
Converter Input Source
MAX15046B EV KIT
INPUT RANGE (V)
4.5 to 5.5
5.5 to 40
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