MAX5080EVKIT Maxim Integrated Products, MAX5080EVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX5080EVKIT
• Description: EVAL KIT FOR MAX5080
• Manufacturer: Maxim Integrated Products

Specifications of MAX5080EVKIT

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 3.3V
• Current - Output: 1A
• Voltage - Input: 4.5 ~ 40V
• Regulator Topology: Buck
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: MAX5080
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

•
•
•
The MAX5080 EV kit is fully assembled and tested. Follow
these steps to verify board operation. Do not turn on the
power supply until all connections are completed.
1)
2)
3)
4)
5)
6)
7)
MAX5080 Evaluation Kit
Note: Indicate that you are using the MAX5080 when contacting these component suppliers.
2
Diodes Inc.
Murata
Sumida
Taiyo Yuden
TDK
Vishay
DESIGNATION
_______________________________________________________________________________________
40V adjustable, 2A power supply
Electronic load capable of sinking up to 1A (e.g.,
HP 6060B)
One digital voltmeter
Connect the power-supply positive terminal to the
VIN PC board pad on the EV kit. Connect the power-
supply ground terminal to the PGND PC board pad.
Connect the positive terminal of the electronic load
to the VOUT PC board pad on the EV kit board.
Connect the ground terminal of the electronic load to
the PGND PC board pad.
Connect a digital voltmeter across the VOUT and
PGND PC board pads.
Turn on the power supply.
Set the power-supply voltage to 10V.
Enable the 1A electronic load.
Verify that the voltmeter measures 3.3V.
R5
R6
R7
R8
SUPPLIER
QTY
1
1
1
1
Recommended Equipment
187Ω ±1% resistor (0603)
1Ω ±5% resistor (0603)
3.01kΩ ±1% resistor (0603)
10kΩ ±5% resistor (0603)
DESCRIPTION
Quick Start
805-446-4800
770-436-1300
847-545-6700
800-348-2496
847-803-6100
PHONE
—
The MAX5080 EV kit circuit uses a MAX5080 step-down
converter IC (U1) to implement a step-down DC-DC
converter circuit. The MAX5080 EV kit operates over a
wide 4.5V to 40V input voltage range and is configured
to provide 3.3V at up to 1A of output current. The
MAX5080 step-down converter IC features an internal
high-side low R
ciency and lower overall system cost. The MAX5080
converter achieves high efficiency by automatically
switching from PWM to PFM mode at light loads. The
MAX5080 SYNC input can be used to synchronize the
converter with an external digital clock. The MAX5080
features overcurrent shutdown, undervoltage lockout,
and thermal shutdown.
The MAX5080 EV kit step-down converter output voltage
is configured to 3.3V by resistors R1 and R2. The EV kit’s
output voltage, V
28V range by replacing resistor R2. To select a new value
for resistor R2, refer to the Compensation Design section
in the MAX5080 IC data sheet. Use the following equation
to reconfigure the output voltage to the desired value:
DESIGNATION
Configuring the Output Voltage (V
None
R9
U1
805-446-4850
770-436-3030
847-545-6720
847-925-0899
847-390-4405
Component List (continued)
FAX
—
R
DS(ON)
OUT
2
=
QTY
0
1
1



, can be reconfigured in the 1.25V to
Component Suppliers
V
1 23
Detailed Description
OUT
.
MOSFET to achieve higher effi-
R
Not installed, resistor (0603)
MAX5080ATE (16-pin thin QFN-
EP, 5mm x 5mm)
MAX5080 EV kit board
1
−
1
www.diodes.com
www.murata.com
www.sumida.com
www.t-yuden.com
www.component.tdk.com
www.vishay.com



DESCRIPTION
WEBSITE
OUT
)