19-2517; Rev. 0; 7/02
MAX1702 Evaluation Kit
General Description
The MAX1702 evaluation kit (EV kit) is a fully assembled
and tested surface-mount circuit board that demonstrates
the MAX1702B power-management IC. The IC is opti-
mized for microprocessor-based applications. The
MAX1702B integrates three high-performance step-down
DC-DC power supplies with associated supervisory and
management functions. The first power supply (VI/O) is
configured for 3.3V and provides up to 900mA. The sec-
ond power supply (VCORE) is configured for 1.1V and
provides up to 400mA. The third power supply (VMEM)
can be configured to 1.8V, 2.5V, or 3.3V and provides up
to 800mA. Power management functions include auto-
matic power-up sequencing, power-on reset, manual
reset with timer, and two levels of low-battery detection.
The EV kit operates with a 2.6V to 5.5V input voltage
range, allowing the use of batteries or a regulated DC
power supply at the input.
Features
o
Triple-Output Power Supply
3.3V VI/O Peripheral Output
1.1V VCORE 碌P Core Output
1.8V, 2.5V, or 3.3V Selectable VMEM Memory
Output
o
Internal Switches
o
1MHz Pulse-Width Modulation (PWM) Switching
o
Adjustable Dead/Low-Battery Settings
o
900mA Available from the VI/O Output
o
800mA Available from the VMEM Output
o
400mA Available from the VCORE Output
o
Surface-Mount Construction
o
Fully Assembled and Tested
Evaluates: MAX1702B
Ordering Information
PART
MAX1702EVKIT
TEMP RANGE
0擄C TO +70擄C
IC PACKAGE
36 QFN (6mm
脳
6 mm)
Component List
DESIGNATION QTY
DESCRIPTION
4.7碌F 鹵20%, 6.3V X5R
ceramic capacitor (0805)
TDK C2012X5R0J475KT or
Taiyo Yuden JMK212BJ475MG
10碌F 鹵10%, 6.3V X5R
ceramic capacitors (1206)
TDK C3216X5R0J106KT or
Taiyo Yuden JMK316BJ106KL
1000pF 鹵10%, 50V X7R
ceramic capacitors (0603)
TDK C1608X7R1H102KT or
Taiyo Yuden UMK107CG102KZ
680pF 鹵10%, 50V X7R
ceramic capacitor (0603)
TDK C1608X7R1H681KT or
Taiyo Yuden UMK107CG681KZ
0.1碌F 鹵10%, 16V X7R
ceramic capacitor (0603)
TDK C1608X7R1C104KT or
Taiyo Yuden EMK107BJ104KA
DESIGNATION QTY
C9
C10, C12, C14
C11, C13,
C15, C16
0
3
DESCRIPTION
Not installed, capacitor (1210)
1.0碌F 鹵10%, 10V X5R
ceramic capacitors (0603)
TDK C1608X5R1A105K
Not installed, capacitors (0603)
33pF 鹵5%, 50V COG
ceramic capacitors (0603)
TDK C1608COG1H330JT or
Taiyo Yuden UMK107CG330JZ
3-pin header
4-pin header
4.7碌H, 1.32A inductors
Sumida CDRH4D28-4R7
4.7碌H, 900mA inductor
Sumida CDRH3D16-4R7NC
267k鈩?/div>
鹵1%
resistor (0603)
90.9k鈩?/div>
鹵1%
resistor (0603)
137k鈩?/div>
鹵1%
resistor (0603)
C1
1
C2, C3,
C4, C17
0
4
C18, C19, C20
3
C5, C7
2
JU1
JU2
L1, L3
L2
R1
R2
R3
1
1
2
1
1
1
1
C6
1
C8
1
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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