The MAX1572 evaluation kit (EV kit) is a fully assembled
and tested circuit board that evaluates the MAX1572
PWM step-down DC-DC converter. The circuit operates
from 2.6V to 5.5V and has a fixed 1.5V output capable
of delivering 800mA. It also provides a RESET output.
The EV kit can be used to evaluate other output voltage
versions of the MAX1572 by replacing the IC.
19-2901; Rev 0; 7/03
Note: When contacting these component suppliers, please
specify you are using the MAX1572
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.
Kamaya
Murata
Panasonic
Taiyo-Yuden
TDK
TOKO
DESIGNATION QTY
SUPPLIER
JU1, JU2
C1, C2
None
None
C3
C4
R1
U1
L1
________________________________________________________________ Maxim Integrated Products
2
1
1
1
2
1
1
2
1
260-489-1533
770-436-1300
714-373-7939
408-573-4150
847-803-6100
847-297-0070
PHONE
Component Suppliers
10µF ±20%, 6.3V X5R ceramic
capacitors (0805)
Panasonic ECJ2FB0J106M or
TDK C2012X5R0J106M or
Taiyo Yuden JMK212BJ106MG
1000pF ±10%, 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H102K or
equivalent
0.1µF ±10%, 16V X7R ceramic
capacitor (0603)
Taiyo Yuden EMK107BJ104KA or
equivalent
10Ω ±5% resistor (0603)
3-pin headers
2.2µH inductor, 0.17Ω, 1.2A
3.6mm
TOKO 976AS-2R2M (D312F family)
MAX1572ETC150
(12-pin thin QFN 4mm
Shunts, position 2
MAX1572 EV kit PC board
General Description
✕
Component List
3.6mm
.
DESCRIPTION
www.kamaya.com
www.murata.com
www.panasonic.com
www.t-yuden.com
www.component.tdk.com
www.toko.com
✕
1.2mm
WEBSITE
✕
4mm)
MAX1572 Evaluation Kit
o 2MHz PWM Switching
o 800mA Guaranteed Output Current
o Power-Saving Modes: Pulse Group/
o Voltage-Positioning Load Transients
o 5mV
o Tiny 2.2µH Inductor
o 10µF Ceramic Output Capacitor
o Low 0.1µA Shutdown Current
o Soft-Start with Zero Inrush Current
o 170ms (min) RESET Output
o Thin QFN IC Package: 4mm
o Fully Assembled and Tested
• Power supply capable of supplying 500mA from 2.6V
• Voltmeter
Follow the steps below to verify operation of the
MAX1572 EV kit. Do not turn on the power supply
until all connections are completed:
1) Select the desired operating mode with JU1 and
2) Connect the positive terminal of the voltmeter to the
3) Preset the power supply to between 2.6V and 5.5V,
4) Connect the positive power-supply terminal to the
5) Turn on the power supply and verify the output volt-
*EP = Exposed paddle.
MAX1572EVKIT
Pulse Skip/Forced PWM
to 5.5V
JU2 (see Table 1).
pad labeled OUT. Connect the ground terminal of
the voltmeter to the pad labeled GND nearest the
OUT pad. Connect a load from OUT to the GND
pad closest to OUT.
and turn the power supply off.
pad labeled IN. Connect the power-supply ground
to the pad labeled GND nearest the IN pad.
age is 1.5V.
PART
P-P
Output Ripple
Recommended Equipment
Ordering Information
TEMP RANGE
0°C to +70°C
✕
4mm
Quick Start
IC PACKAGE
12 Thin QFN-EP*
✕
Features
0.8mm
1