MAX8643EVKIT+ Maxim Integrated Products, MAX8643EVKIT+ Datasheet - Page 2

• Manufacturer Part Number: MAX8643EVKIT+
• Description: Power Management Modules & Development Tools MAX8643 KIT MAX8643 KIT
• Manufacturer: Maxim Integrated Products

Specifications of MAX8643EVKIT+

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

MAX8643 Evaluation Kit
Note: Indicate that you are using the MAX8643 when contacting
these component suppliers.
2
TDK
TOKO
Vishay
DESIGNATION
SUPPLIER
_______________________________________________________________________________________
JU1, JU2
JU3, JU4
R10
R1
R2
R3
R4
R5
R6
R7
R8
R9
U1
L1
—
—
Component List (continued)
847-803-6100
800-745-8656
402-563-6866
QTY
2
2
1
1
1
1
1
1
1
1
0
0
1
1
5
1
PHONE
Component Suppliers
2-pin headers
3-pin headers
0.47µH, 7.6mΩ, 9.6A inductor
(7.7mm x 7mm x 2mm)
TOKO FDV0620-R47
10Ω ±5%, resistor (0603) lead free
10kΩ ±5% resistor (0603) lead free
1kΩ ±5%, resistor (0603) lead free
2.67kΩ ±1%, resistor (0603) lead
free
20kΩ ±5% resistor (0603) lead free
158Ω ±1% resistor (0603) lead free
49.9kΩ ±1% resistor (0603) lead
free
Not installed, resistor (0603). Must
be 8.06kΩ ±1% resistor (0603)
when populated for adjustable
output voltage programming.
Not installed, resistor (0603) for
adjustable output voltage
programming
2.2Ω ±5% resistor (0603) lead free
MAX8643ETG+
(24-pin, 4mm x 4mm TQFN)
Shunts
MAX8643 EV kit PCB
www.vishay.com
www.component.tdk.com
www.toko.com
DESCRIPTION
WEBSITE
4) Verify that there is a shunt on pins 1-2 of jumper
5) Connect the positive lead of the power supply to the
6) Connect the positive lead of the DMM to the OUT
7) Turn on the power supply.
8) Verify that the voltage at OUT is 1.8V.
9) Connect the load between OUT and GND.
10) Verify that the voltage at OUT is 1.8V.
The MAX8643 EV kit comes preset to a 1.8V output
voltage. As shown in Table 1, the output voltage is pin-
programmable by the logic states of CTL1 and CTL2,
jumpers JU3 and JU4, respectively. CTL1 and CTL2
are three-level inputs: V
The logic states of CTL1 and CTL2 should be pro-
grammed only before power-up. To avoid damage to
the IC, CTL1 and CTL2 should not be changed once
soft-start is complete. If the output voltage needs to be
reprogrammed, cycle power or EN and reprogram dur-
ing or before soft-start.
Table 1. CTL1 and CTL2 Output Voltage
Selection
When the output voltage of the MAX8643 is pro-
grammed to a preset voltage, Ri is internal to the IC
and R9 is not installed (Figure 1b).
Unconnected
Unconnected
Unconnected
JU4.
IN pad and connect the negative lead of the power
supply to the GND pad on the EV kit.
pad and connect the negative lead of the DMM to
the GND pad on the EV kit.
CTL1/JU3
2-3
1-2
2-3
2-3
1-2
1-2
Evaluating Other Output Voltages
Unconnected
Unconnected
Unconnected
Detailed Description
CTL2/JU4
DD
2-3
1-2
1-2
2-3
1-2
2-3
, unconnected, and GND.
0.6 or external
V
divider
OUT
0.7
0.8
1.0
1.2
1.5
1.8
2.0
2.5
(V)