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MAX8855 Evaluation Kit
Component List (continued)
DESIGNATION
C10, C14
C11, C13
C18, C19
C21, C22
QTY
2
2
2
2
DESCRIPTION
47pF ±5%, 50V C0G ceramic
capacitors (0402)
TDK C1005C0G1H470J
Murata GRM1555C1H470J
560pF ±10%, 50V X7R ceramic
capacitors (0402)
Murata GRM155R71H561K
47μF ±20%, 6.3V X5R ceramic
capacitors (1206)
TDK C3216X5R0J476M
Murata GRM31CR60J476K
1000pF ±10%, 50V X7R ceramic
capacitors (0402)
TDK C1005X7R1H102K
DESIGNATION
L1, L2
R1, R19
R2
R3, R4, R5, R12,
R13, R18
R6
R7, R10
R8, R9
R11
R14, R15
R16
QTY
2
0
1
6
1
2
2
1
2
1
DESCRIPTION
0.47μH ±20% inductors
TOKO FDV0630-R47M
Not installed, resistors (0402)
0 Ω resistor (0402)
10k Ω ±1% resistors (0402)
4.99k Ω ±1% resistor (0402)
8.06k Ω ±1% resistors (0402)
210 Ω ±1% resistors (0402)
10 Ω ±1% resistor (0402)
20k Ω ±1% resistors (0402)
49.9 Ω ±1% resistor (1206)
Murata GRM155R71H102K
Dual step-down regulator
FSYNC
JU1, JU3
JU2
0
2
1
Not installed, BNC connector
3-pin headers
2-pin header
U1
—
—
1
2
1
(32 TQFN-EP*)
Maxim MAX8855ETJ+
Shunts, 2-position
PCB: MAX8855 EVALUATION KIT+
*EP = Exposed pad.
Quick Start
Recommended Equipment
? MAX8855 EV kit
? Adjustable DC power supply capable of supplying
3.6V at up to 7A
? Two electronic loads capable of sinking 5A (e.g.,
HP 6060B)
? Two voltmeters (DMM)
Procedure
The 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) Set the DC power supply in the 2.35V to 3.6V range
and turn off the power supply.
2) Connect the positive lead of the power supply to
the IN pad and the negative pad to the PGND pad
of the EV kit.
3) Verify that JU1 and JU2 do not have a shunt installed.
4) Verify that a shunt is across pins 1 and 2 of jumper
JU3.
5) Connect the positive lead of a voltmeter to the
OUT1 pad and the negative lead of the voltmeter to
the PGND1 pad of the EV kit.
6) Connect the positive lead of the other voltmeter to
the OUT2 pad and the negative lead of the volt-
meter to the PGND2 pad of the EV kit.
7) Connect the positive lead of a 5A electronic load to
the OUT1 pad and the negative lead of the elec-
tronic load to the PGND1 pad of the EV kit.
8) Connect the positive lead of the second 5A elec-
tronic load to the OUT2 pad and the negative lead
of the electronic load to the PGND2 pad of the EV
kit.
9) Turn on the power supply.
10) Verify that V OUT1 is 1.8V throughout the 2.35V to
3.6V input voltage range.
11) Verify that V OUT2 is 1.2V throughout the 2.35V to
3.6V input voltage range.
12) Turn on both electronic loads. Repeat steps 10 and 11.
2
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