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MAX1572EVKIT Datasheet

  • MAX1572EVKIT

  • MAX1572評估板

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19-2901; Rev 0; 7/03
MAX1572 Evaluation Kit
General Description
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.
o
2MHz PWM Switching
o
800mA Guaranteed Output Current
o
Power-Saving Modes: Pulse Group/
Pulse Skip/Forced PWM
o
Voltage-Positioning Load Transients
o
5mV
P-P
Output Ripple
o
Tiny 2.2碌H Inductor
o
10碌F Ceramic Output Capacitor
o
Low 0.1碌A Shutdown Current
o
Soft-Start with Zero Inrush Current
o
170ms (min)
RESET
Output
o
Thin QFN IC Package: 4mm
鉁?/div>
4mm
鉁?/div>
0.8mm
o
Fully Assembled and Tested
Features
Evaluates: MAX1572
Component List
DESIGNATION QTY
DESCRIPTION
10碌F
鹵20%,
6.3V X5R ceramic
capacitors (0805)
Panasonic ECJ2FB0J106M or
TDK C2012X5R0J106M or
Taiyo Yuden JMK212BJ106MG
1000pF
鹵10%,
50V X7R ceramic
capacitor (0603)
Murata GRM188R71H102K or
equivalent
0.1碌F
鹵10%,
16V X7R ceramic
capacitor (0603)
Taiyo Yuden EMK107BJ104KA or
equivalent
10鈩?/div>
鹵5%
resistor (0603)
3-pin headers
2.2碌H inductor, 0.17鈩? 1.2A
3.6mm
鉁?/div>
3.6mm
鉁?/div>
1.2mm
TOKO 976AS-2R2M (D312F family)
MAX1572ETC150
(12-pin thin QFN 4mm
鉁?/div>
4mm)
Shunts, position 2
MAX1572 EV kit PC board
C1, C2
2
C3
1
Ordering Information
PART
MAX1572EVKIT
TEMP RANGE
0擄C to +70擄C
IC PACKAGE
12 Thin QFN-EP*
C4
1
*EP
= Exposed paddle.
R1
JU1, JU2
L1
1
2
1
Recommended Equipment
鈥?Power supply capable of supplying 500mA from 2.6V
to 5.5V
鈥?Voltmeter
Quick Start
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
JU2 (see Table 1).
2) Connect the positive terminal of the voltmeter to the
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.
3) Preset the power supply to between 2.6V and 5.5V,
and turn the power supply off.
4) Connect the positive power-supply terminal to the
pad labeled IN. Connect the power-supply ground
to the pad labeled GND nearest the IN pad.
5) Turn on the power supply and verify the output volt-
age is 1.5V.
U1
None
None
1
2
1
Component Suppliers
SUPPLIER
Kamaya
Murata
Panasonic
Taiyo-Yuden
TDK
TOKO
PHONE
260-489-1533
770-436-1300
714-373-7939
408-573-4150
847-803-6100
847-297-0070
WEBSITE
www.kamaya.com
www.murata.com
www.panasonic.com
www.t-yuden.com
www.component.tdk.com
www.toko.com
Note:
When contacting these component suppliers, please
specify you are using the MAX1572
.
________________________________________________________________
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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