Datasheet

Evaluates: MAX8654/MAX8688
Quick Start
Recommended Equipment
Before beginning, the following equipment is needed:
• Up to 12V at +3A DC power supply or battery
• Digital multimeter (DMM)
• Up to 8A load
• Ammeter (optional)
Procedure
The MAX8654 EV kit is fully assembled and tested.
Follow the steps below to verify board operation.
Caution: Do not turn on the power supply until all con-
nections are made.
1) Preset the DC power supply to 12V. Turn off the
power supply.
2) Ensure that there is a shunt on JU1 and JU2.
3) Ensure that there is a shunt on pins 1-2 of JU3.
4) Connect the positive lead of the power supply to the
VIN pad and connect the negative lead of the
power supply to the GND pad on the EV kit.
5) Connect the positive lead of the DMM to the VOUT
pad and connect the negative lead of the DMM to
the GND pad on the EV kit.
6) Turn on the power supply.
7) Verify that the voltage at VOUT is approximately
3.3V.
8) Connect the load between VOUT and GND.
9) Verify that the voltage at VOUT is approximately
3.3V.
MAX8654 Evaluation Kit
2 _______________________________________________________________________________________
Component Lists (continued)
DESIGNATION QTY DESCRIPTION
JP1–JP7,
JP9–JP13
0 Not installed
JU1, JU2, JU4 3 2-pin headers
JU3 1 3-pin header
L1 1
1µH, 7.9mΩ, 12A inductor (7.4mm x
6.7mm x 3mm)
TOKO FDV0630-1R0M
R1, R2, R10 3 100kΩ ±1% resistors (0402), lead free
R3 1 1.5kΩ ±1% resistor (0402), lead free
R4 1 332Ω ±1% resistor (0402), lead free
R5 1 15Ω ±5% resistor (0402), lead free
R6 1 475Ω ±1% resistor (0402), lead free
R7 1 75kΩ ±1% resistor (0402), lead free
R8 1 2.2Ω ±1% resistor (1206), lead free
R9, R11 2 1kΩ ±1% resistors (0402), lead free
R12 1 10Ω ±1% resistor (0402), lead free
U1 1
8A step-down regulator
Maxim MAX8654ETX+
— 3 Shunts
— 1 PCB: MAX8654 Evaluation Kit+
DESIGNATION QTY DESCRIPTION
C201, C202,
C203, C205,
C206, C207
0
100nF ±10%, 50V X7R ceramic
capacitors (0603), open
Murata GRM188R71H104K
C204 0
1µF ±10%, 10V X5R ceramic
capacitor (0603), open
Murata GRM188R61A105K
C208 0
2.2µF ±10%, 10V X5R ceramic
capacitor (0603), open
Taiyo Yuden LMK107BJ225K
C209 0 Ceramic capacitor, open
C210 0
0.47µF ±10%, 10V X5R ceramic
capacitor (0603), open
Murata GRM188R61A474K
D1 0
3.3V 350mW zener diode (SOT23),
open
Central Semiconductor CMPZ4620
JP201 0 4-pin header, open
JP202, JP203,
JP204
0 3-pin header, open
R19 0 100kΩ resistor, open
MAX8688 Circuit—Not Installed
MAX8654 Circuit
DESIGNATION QTY DESCRIPTION
R201, R204,
R206, R208,
R209, R214
0 Resistors, open
R202 0 0Ω resistor (0402)
R203 0 1kΩ ±1% resistor (0402), open
R205, R207,
R210
0 33kΩ ±1% resistors (0402), open
R211 0 909Ω ±5% resistor (0603), open
R213 0 100kΩ ±1% resistor (0402), open
R215 0 10kΩ ±1% resistor (0402), open
R216, R217 0 100Ω ±1% resistors (0402), open
U201 0 MAX8688+, open
U202 0 AT24C01A-10TSU-1.8, open
MAX8688 Circuit—Not Installed