19-2877; Rev 0; 5/03
MAX1582 Evaluation Kit
General Description
Features
The MAX1582 evaluation kit (EV kit) is a fully assembled
and tested circuit board that evaluates the MAX1582
white LED step-up converter. The circuit operates from
2.6V to 5.5V and delivers 0 to 20mA to light a series of
up to six white LEDs. The evaluation kit has two groups
of white LEDs—a main group with four LEDs, and a
subgroup with two LEDs. These two groups of LEDs
have independent shutdown/enable control through
jumpers provided on the board. A flexible dimming fea-
ture allows the LED brightness to be controlled with
either an analog voltage or a PWM signal.
ꢀ Constant Current Regulation for Uniform
Illumination
ꢀ Up to 84% Efficiency
ꢀ Flexible Analog or PWM Dimming Control
ꢀ Low 15mV
Input Ripple
P-P
ꢀ 0.9W Output Power with Internal 30V MOSFET
Switch
ꢀ Output Overvoltage Protection Eliminates Zener
Diode
Component Suppliers
ꢀ Small, Low-Profile Components
ꢀ 2.6V to 5.5V Input Range
SUPPLIER
Central
PHONE
WEBSITE
ꢀ 0.01µA Shutdown Current
631-435-1110 www.centralsemi.com
Semiconductor
ꢀ Thin QFN 4mm x 4mm IC Package
ꢀ Fully Assembled and Tested
Kamaya
Murata
260-489-1533 www.kamaya.com
814-237-1431 www.murata.com
248-352-6575 www.nichia.com
714-373-7939 www.panasonic.com
847-956-0666 www.sumida.com
408-573-4150 www.t-yuden.com
847-803-6100 www.component.tdk.com
847-297-0070 www.toko.com
Nichia
Panasonic
Sumida
Taiyo Yuden
TDK
Ordering Information
PART
TEMP RANGE
IC PACKAGE
MAX1582EVKIT
-30 C to +85 C
12 Thin QFN
TOKO
Note: When contacting these suppliers, please specify you are
using the MAX1582.
Component List
DESIGNATION QTY DESCRIPTION
DESIGNATION QTY DESCRIPTION
JU1, JU2
JU3
2
1
3-pin headers
2-pin header
2.2µF, 6.3V X5R capacitor (0603)
Taiyo Yuden JMK107BJ225KA,
or Panasonic ECJ1VB0J225M,
or equivalent
C1
1
22µH inductor (1210)
250mA, 710m , 2.5 mm x 2.2 mm x
2.0mm
L1
1
0.1µF, 50V X7R capacitor (0603)
TDK C1608X7R1H104KT
or equivalent
Murata LQH32CN220K
C2
C3
1
1
R1
R2
1
1
1
1
3
1
7.5
1ꢀ resistor (0603)
5ꢀ resistor (0603)
100k
0.022µF X7R capacitor (0603)
Taiyo Yuden TMK107BJ223KA
or equivalent
U1
MAX1582ETC (12-pin thin QFN 4 x 4)
MAX1582EBE (UCSP 4 x 4)
Shunts
U2
None
None
30V, 200mA Schottky diode (SOD-
323)
Central CMDSH2-3
MAX1582 EV kit PC board
D1
1
6
White LEDs
Nichia NSCW215T
D2–D7
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.