19-2165; Rev 0; 10/01
MAX1813 Evaluation Kit
General Description
The MAX1813 evaluation kit (EV kit) demonstrates the
high-power, dynamically adjustable notebook CPU
application circuit. This DC-DC converter steps down
high-voltage batteries and/or AC adapters, generating
a precision, low-voltage CPU core VCC rail. The
MAX1813 EV kit meets the Intel mobile CPU鈥檚 transient
voltage specification (IMVP-II/Coppermine), using volt-
age positioning to minimize the output-capacitor
requirements. The MAX1813 has an internal multiplexer
which accepts three unique 5-bit VID DAC codes corre-
sponding to performance, battery, and suspend
modes. Precision slew-rate control provides 鈥渏ust-in-
time鈥?arrival at the new DAC setting, minimizing surge
currents to and from the battery.
This fully assembled and tested circuit board provides
a digitally adjustable 0.6V to 2.0V output from a 7V to
24V battery input range. It delivers up to 22A output
current. The EV kit operates at 300kHz switching fre-
quency and has superior line- and load-transient
response.
Features
o
High Speed, Accuracy, and Efficiency
o
IMVP-II/Coppermine/AMD Compatible
o
Voltage-Positioned Output
o
Low Output-Capacitor Count (6)
o
Fast-Response Quick-PWM鈩?Architecture
o
7V to 24V Input Voltage Range
o
0.925V to 2.0V Output Voltage Range
(Coppermine/AMD, 5-Bit DAC)
o
0.6V to 1.75V Output Voltage Range
(IMVP-II, 5-Bit DAC)
o
22A Load-Current Capability
o
300kHz Switching Frequency
o
Power Good (PGOOD) Indicator
o
28-Pin QSOP Package
o
Low-Profile Components
o
Fully Assembled and Tested
Evaluates: MAX1813
Ordering Information
PART
MAX1813EVKIT
TEMP. RANGE
0擄C to +70擄C
IC PACKAGE
28 QSOP
Component List
DESIGNATION
QTY
DESCRIPTION
10碌F, 25V ceramic capacitors
(1812)
Taiyo Yuden TMK432BJ106KM
TDK C4532X5R1E106M
220碌F, 2.5V, 15m鈩?low-ESR
specialty polymer capacitors
Panasonic EEFUE0E221R
10碌F, 6.3V X5R ceramic
capacitor (1210)
Taiyo Yuden JMK325BJ106MN
TDK C3216X5R0J106M
0.1碌F ceramic capacitor (0805)
0.22碌F, 16V X5R ceramic
capacitors (0805)
Taiyo Yuden EMK212BJ224KG
DESIGNATION
C14
QTY
1
DESCRIPTION
47pF ceramic capacitor (0805)
1碌F, 10V X5R ceramic capacitor
(0805)
Taiyo Yuden LMK212BJ105KG
TDK C2012X5R105M
1000pF ceramic capacitors
(0805)
4700pF ceramic capacitors
(0805)
Not installed
5A Schottky diode
Central Semiconductor
CMSH5-40
100mA Schottky diode
Central Semiconductor CMPSH-3
C1鈥揅4, C20
5
C15
1
C5, C6, C7,
C10, C13, C16
6
C18, C27
C17, C19, C23,
C24, C25
C21, C22, C26
D1
2
5
0
1
C8
C9
C11, C12
1
1
2
D2
1
Quick-PWM is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________
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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