19-2982; Rev 0; 9/03
MAX8561 Evaluation Kit
General Description
The MAX8561 evaluation kit (EV kit) demonstrates the
MAX8561/MAX8562s鈥?up to 4MHz pulse-width modulat-
ed (PWM) step-down DC-DC converters. The two circuits
are optimized for powering the DSP/microprocessor or
the power amplifiers (PAs) in wireless applications. The
MAX8561 circuit provides two adjustable output voltages
in the 0.6V to 2.5V range from a 2.7V to 5.5V input, and
can deliver 500mA of load current. In comparison, the
MAX8562 circuit provides an adjustable voltage in the
0.6V to 2.5V range and a bypass mode where the output
voltage is shorted to the input by an external MOSFET.
o
2.7V to 5.5V Input Voltage Range
o
0.6V to 2.5V Adjustable Output Voltage Range
o
VOUT1 = 1.8V/1.5V at 500mA (MAX8561)
o
VOUT2 = 1.2V at 400mA or Bypass Mode
(MAX8562)
o
2MHz PWM Switching Frequency (MAX8561)
o
4MHz PWM Switching Frequency (MAX8562)
o
0.1碌A(chǔ) (typ) Shutdown Current
o
Surface-Mount Construction
o
Fully Assembled and Tested
Features
Evaluates: MAX8561/MAX8562
Ordering Information
PART
MAX8561EVKIT
TEMP RANGE
0擄C to +70擄C
IC PACKAGE
8 Thin DFN (3mm x 3mm)
Component List
DESIGNATION
C1, C4
QTY
2
DESCRIPTION
4.7碌F 鹵10%, 6.3V X5R ceramic
capacitors (0603)
TDK C1608X5R0J475K
2.2碌F 鹵10%, 6.3V X5R ceramic
capacitors (0603)
Taiyo Yuden JMK107BJ225KA or
TDK C1608X5R0J225K
150pF 鹵5%, 50V C0G ceramic
capacitor (0603)
TDK C1608C0G1H151JT or
equivalent
100pF 鹵5%, 50V C0G ceramic
capacitor (0603)
TDK C1608C0G1H101JT or
equivalent
3-pin headers
2.2碌H inductor
Murata LQH32CN2R2M51
DESIGNATION
L2
P1
R1
R2
R3, R4, R5
U1
U2
U3
None
None
QTY
1
1
1
1
3
1
1
0
4
1
DESCRIPTION
1.0碌H inductor (0806)
Taiyo Yuden LB2016B1R0M
P-channel MOSFET (SC70)
Vishay Si1417EDH (top mark BB)
150k鈩?鹵1% resistor (0603)
301k鈩?鹵1% resistor (0603)
100k鈩?鹵1% resistors (0603)
MAX8561ETA (8-pin thin DFN 3mm x
3mm) top mark AHD
MAX8562ETA (8-pin thin DFN 3mm x
3mm) top mark AHE
Not installed
Shunts
MAX8561/MAX8562 PC board
C2, C5
2
C3
1
C6
1
JU1鈥揓U4
L1
4
1
Component Suppliers
SUPPLIER
Murata
Taiyo Yuden
TDK
Vishay
PHONE
770-436-1300
800-348-2496
847-803-6100
203-268-6261
FAX
770-436-3030
847-925-0899
847-390-4405
203-452-5670
WEBSITE
www.murata.com
www.t-yuden.com
www.component.tdk.com
www.vishay.com
Note:
Please indicate that you are using the MAX8561/MAX8562 when contacting these component suppliers.
________________________________________________________________
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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