MAX1625 Evaluation Kit
_______________General Description
The MAX1625 evaluation kit (EV kit) provides a 2.5V
output voltage from a 4.5V to 5.5V input. It delivers up
to 5A output current with greater than 90% efficiency.
The MAX1625 features a resistor-programmable switch-
ing frequency from 100kHz to 1MHz, as well as current-
mode operation for superior load- and line-transient
response. This EV kit operates at a 500kHz switching
frequency. It can also be used to evaluate other output
voltages by changing feedback resistors R2 and R3.
____________________________Features
o
4.5V to 5.5V Input Voltage Range
o
2.5V Output Voltage (1.1V to 4.0V adjustable)
o
5A Output Current
o
Efficiency = 91%, V
IN
= 5V,
V
OUT
= 2.5V @ I
OUT
= 2.5A
o
Power-OK Output
o
500kHz Switching Frequency
o
16-Pin Narrow SO
o
Low-Profile Components
o
Fully Assembled and Tested
Evaluates: MAX1625
______________Ordering Information
PART
MAX1625EVKIT
TEMP. RANGE
0擄C to +70擄C
BOARD TYPE
Surface Mount
_____________________________________________________________Component List
DESIGNATION QTY
C1
C2, C3
C4, C5, C9
C6
C7, C8
C10
C11, C12
CC1
CC2
D1
(optional)
D2
1
2
3
1
2
0
2
1
1
1
DESCRIPTION
100碌F, 10V electrolytic capacitor
Sanyo 10SL100M
220碌F, 4V electrolytic capacitors
Sanyo 4SP220M
0.1碌F ceramic capacitors
2.2碌F ceramic capacitor
4.7碌F, 16V tantalum capacitors
Sprague 595D475X0016A2T
Open
4700pF ceramic capacitors
1000pF ceramic capacitor
0.056碌F ceramic capacitor
Schottky diode
Nihon NSQ03A02 or
Motorola MBRS340T3
Schottky diode
Central Semiconductor CMPSH-3
1.5碌H power inductor
Coiltronix UP2-1R5,
Coilcraft DO3316P-152, or
Sumida CDRH127-1R3
R2
R3
R4
R5
R6
R7, R8
R9
U1
JU1
None
None
None
1
1
1
1
1
2
1
1
1
1
1
1
127k鈩? 1% resistor
100k鈩? 1% resistor
40.2k鈩? 1% resistor
100k鈩? 5% resistor
100鈩? 5% resistor
39鈩? 5% resistors
1k鈩? 5% resistor
MAX1625ESE
2-pin header
Shunt
MAX1625 PC board
MAX1625 data sheet
R1
1
DESIGNATION QTY
N1, N2
2
DESCRIPTION
N-channel MOSFETs (SO-8)
International Rectifier IRF7413 or
Siliconix Si4410DY
0.012鈩? 1%, 1W resistor
Dale WSL-2512-R012-F or
IRC LR2512-01-R012-F
1
L1
1
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
1
2
3
4
