19-1974; Rev 0; 03/01
MAX1522 Evaluation Kit
General Description
The MAX1522 evaluation kit (EV kit) is a fully assembled
and tested surface-mount circuit board that contains
two separate step-up switching controller circuits. The
first circuit (left side) utilizes the MAX1524, is config-
ured for +5V output, and can deliver up to 1A of cur-
rent. The MAX1524 supply pin is bootstrapped to the
output. The second circuit (right side) utilizes the
MAX1522, is configured for +12V output, and can deliv-
er up to 200mA of current with the input voltage as low
as +2.7V.
The MAX1522 and MAX1524 feature soft-start and fault-
detect. The EV kit allows the user to set the on-time of
the N-channel MOSFETs to either 0.5碌s or 3碌s.
o
Input Voltage
+1.5V to +5.5V (Left Side, BOOTSTRAPPED)
+2.5V to +5.5V (Right Side, NON-
BOOTSTRAPPED)
o
Output Voltage
+5V Output Up to 1A (Left Side)
+12V Output Up to 200mA (Right Side)
o
No Current-Sense Resistor
o
Fault-Detection
o
Soft-Start Limits Inrush Current
o
Selectable Maximum Duty Cycle (45% or 80%)
o
Adjustable Output Voltages
o
1碌A (max) Shutdown Current
o
Switching Frequency Up to 1MHz
o
Fully Assembled and Tested
Features
Evaluates: MAX1522/MAX1523/MAX1524
Component Suppliers
SUPPLIER
Fairchild
Murata
Nihon USA
Sanyo
Sumida
Taiyo Yuden
TDK
Toshiba
PHONE
408-822-2000
814-237-1431
661-867-2555
619-661-6835
847-956-0666
408-573-4150
847-803-6100
949-455-2000
FAX
408-822-2102
814-238-0490
661-867-2698
619-661-1055
847-956-0702
408-573-4159
847-803-6296
949-859-3963
Ordering Information
PART
MAX1522EVKIT
TEMP. RANGE
0擄C to +70擄C
IC PACKAGE
6 SOT23
Note:
Please indicate that you are using the MAX1522,
MAX1523, or MAX1524 when contacting these component
suppliers.
DESIGNATION
QTY
DESCRIPTION
100pF, 50V COG ceramic
capacitors (0603)
TDK C1608COG1H101JT or
Murata GRM39COG101J050AD
47pF, 50V COG ceramic
capacitor (0603)
TDK C1608COG1H470JT
330pF, 50V COG ceramic
capacitor (0603)
TDK C1608X7R1H331KT or
Murata GRM39COG331J050AD
1碌F, 16V X7R ceramic capacitor
(1206)
Taiyo Yuden EMK316BJ105KF or
TDK C3216X7R1C105KT
Component List
DESIGNATION
QTY
DESCRIPTION
10碌F, 6.3V X5R ceramic
capacitors (1206)
TDK C3216X5R0J106KT or
Taiyo Yuden JMK316BJ106KL
47碌F 鹵20%, 20V aluminum
electrolytic capacitor
Sanyo 25CV47AX
33碌F, 10V Poscap capacitor (C)
Sanyo 10TPA33M
301k鈩?鹵1% resistor (0805)
100k鈩?鹵1% resistors (0805)
866k鈩?鹵1% resistor (0805)
10鈩?鹵5% resistor (0805)
30V, 5.2A N-channel MOSFET
Fairchild FDC633N (6-pin
SuperSOT)
C1, C2
2
C6, C7
2
C3
1
C8
1
C9
R1
R2, R4
R3
R5
N1, N2
1
1
2
1
1
2
C4
1
C5
1
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Maxim Integrated Products
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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.
Maxim
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