MAX1626 Evaluation Kit
_______________General Description
The MAX1626 evaluation kit (EV kit) provides a selec-
table 3.3V or 5V output voltage. The MAX1626 has a
high-switch duty cycle of up to 100%, allowing the
external P-channel transistor to turn on fully. The 100%
duty cycle and a low 100mV current-sense level permit
very low dropout voltages. The circuit is configured to
deliver up to 2A of output current with greater than 90%
conversion efficiency.
This EV kit is a fully assembled and tested surface-
mount circuit board. It can also be used to evaluate the
MAX1627, which has an adjustable output voltage.
Additional pads on the bottom of the board accommo-
date the external feedback resistors for setting different
output voltages.
____________________________Features
o
Selectable 3.3V or 5V Output Voltage
o
Low Dropout Voltage
o
100% Max Duty Cycle
o
2A Output Current
o
16.5V Max Input Voltage
o
1碌A Max Shutdown Current
o
90碌A Max IC Supply Current
o
Up to 300kHz Switching Frequency
o
8-Pin SO, Surface-Mount Construction
o
Fully Assembled and Tested
Evaluates: MAX1626/MAX1627
____________________Component List
DESIGNATION QTY
C1, C2
2
DESCRIPTION
68碌F, 20V tantalum capacitors
AVX TPSE686M020R0150 or
Sprague 593D686X0020E2W
220碌F, 10V tantalum capacitor
AVX TPSE227M010R0100 or
Sprague 593D227X0010E2W
0.47碌F ceramic capacitor
0.1碌F ceramic capacitor
Open
Schottky diode
Nihon NSQ03A03 or
Motorola MBRS340T3
22碌H inductor
Sumida CDRH125-220 or
Coilcraft DO3316P-223
P-channel MOSFET
International Rectifier IRF7416,
Siliconix Si4431DY, or
Motorola MMSF3P02HD
0.040鈩? 1%, 1/2W resistor
Dale WSL-2010-R040-F or
IRC LR2010-01-R040-F
Open
MAX1626ESA
Three-pin headers
Shunts
MAX1626 PC board
MAX1626 data sheet
_______________Ordering Information
PART
MAX1626EVKIT-SO
TEMP. RANGE
0擄C to +70擄C
BOARD TYPE
Surface Mount
Note: To evaluate the MAX1627, request a MAX1627ESA free
sample with the MAX1626EVKIT-SO.
C3
C4
C5
C6, C7
D1
1
1
1
0
1
______________Component Suppliers
SUPPLIER
AVX
Coilcraft
Dale-Vishay
International
Rectifier
IRC
Motorola
Nihon
Siliconix
Sprague
Sumida
PHONE
(803) 946-0690
(800) 282-4975
(847) 639-6400
(402) 564-3131
(310) 322-3331
(512) 992-7900
(602) 303-5454
(805) 867-2555
(408) 988-8000
(800) 554-5565
(603) 224-1961
(847) 956-0666
FAX
(803) 626-3123
(847) 639-1469
(402) 563-6418
(310) 322-3332
(512) 992-3377
(602) 994-6430
(805) 867-2698
(408) 970-3950
(603) 224-1430
(847) 956-0702
L1
1
P1
1
R1
R2, R3
U1
JU1, JU2
None
None
None
1
0
1
2
2
1
1
________________________________________________________________
Maxim Integrated Products
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For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
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