19-2782; Rev 0; 2/03
MAX5037 Evaluation Kit
General Description
Features
o Designed to Meet VRM 9.0 Mechanical and
The MAX5037 evaluation (EV) kit is a fully assembled
and tested VRM power-supply evaluation kit. The EV kit
module can be inserted directly into the VRM daughter
board AMP connector (1364125-1 or equivalent) on
Electrical Specifications
o Two-Phase Power Conversion
®
Pentium 4 processor motherboards. The input voltage
o 5V or 12V Input Operation (Design Optimized for
range is either 4.75V to 5.5V or 8V to 13.2V. The EV kit
design is optimized for the best performance at 12V
input and 1.75V output voltage settings. The output is
programmable from 1.1V to 1.85V through VID input in
compliance with Intel’s VRM 9.0 specification. Up to 52A
load current is possible from dual-phase conversion.
High-power density and simple assembly is achieved
due to a lower component count using the MAX5037.
12V Input)
o Output Voltage Programmable from 1.1V to 1.85V
in 25mV Step-Through VID Input
o VRM 9.0-Compliant Integrated 5-Bit DAC
o 52A Output Current
o Adaptive Voltage Positioning for Optimized
Transient Response
Warning
o Average Current-Mode Control for Superior
The MAX5037 EV kit is designed to operate at high cur-
rents, and some of the components operate at high
temperatures. Avoid touching the components. The
evaluation board is not provided with a fuse. Use a
controlled current source to power up the board.
Under severe fault conditions, this EV kit may dissipate
a large amount of power. To avoid possible personal
injury, operate this kit with care.
Current Sharing
o Current-Sharing Accuracy Within 5% Between
Parallel Channels
o Up to 95% Efficiency
o 500kHz Effective Switching Frequency
(Two Phases)
Pentium is a registered trademark of Intel Corp.
o Output Overload Protection
o Output Overvoltage Crowbar Protection
o Internal Undervoltage Lockout and Startup Circuit
o Excellent Line-and-Load Transient Response
o Phase Failure Detector
Component List
DESIGNATION QTY
DESCRIPTION
47µF 20%, 16V X5R ceramic
capacitors (2220)
TDK C5750X5R1C476M
C1, C2
C3–C11
C12–C21
C22, C23
2
9
o Multiple-Phase Synchronization Between Parallel
Modules
22µF 20%, 16V X5R ceramic
capacitors (1812)
TDK C4532X5R1C226M
o VRM 9.0-Compliant EDGE Connector
Ordering Information
270µF, 2V, 15mΩ low-ESR specialty
10 capacitors
PART
TEMP RANGE
IC PACKAGE
Panasonic EEFUE0D271R
MAX5037EVKIT
0°C to +60°C
44 QFN
100µF 10%, 6.3V ceramic capacitors
(2220)
2
Murata GRM55FR60J107KA01L
10µF 20%, 6.3V X5R ceramic
capacitors (0805)
TDK C2012X5R0J106M
C24–C29
C30, C42
6
2
3
0Ω resistors (0603)
0.01µF 5%, 50V X7R ceramic
capacitors (0603)
C31, C35, C37
Murata GRM188R71H103KA01
________________________________________________________________ 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.