19-1636; Rev 0; 2/00
MAX1717 Evaluation Kit
General Description
Features
ꢀ High Speed, Accuracy, and Efficiency
ꢀ Voltage-Positioned Output
The MAX1717 evaluation kit (EV kit) demonstrates a
high-power, dynamically adjustable notebook CPU
application circuit. The MAX1717 DC-DC converter
steps down high-voltage batteries and/or AC adapters,
ꢀ Lowest Output Capacitor Count (4)
ꢀ Reduces CPU Power Consumption
generating a precision, low-voltage CPU core V
rail.
CC
The MAX1717 EV kit meets the Intel mobile Pentium® III
CPU’s transient voltage specification by using voltage
positioning to minimize output capacitor requirements.
ꢀ Fast-Response Quick-PWM™ Architecture
ꢀ 7V to 24V Input Voltage Range
This fully assembled and tested circuit board provides
a digitally adjustable 0.925V to 2V output voltage from a
7V to 24V battery input range. It delivers up to 12A out-
put current with 14.1A peak current. The EV kit oper-
ates at 300kHz switching frequency and has superior
line- and load-transient response. Output slew-rate con-
trol minimizes battery and inductor surge currents. With
its precision timer circuit, the MAX1717’s output voltage
slew rate can be tailored to a given application, provid-
ing “just-in-time” arrival at the new DAC setting.
ꢀ 0.925V to 2V Output Voltage Range
ꢀ 12A Load-Current Capability (14.1A peak)
ꢀ Controlled Input Surge Current During Output
Transition
ꢀ 300kHz Switching Frequency
ꢀ No Current-Sense Resistor
ꢀ VGATE Power-Good/Transition-Complete Indicator
ꢀ 24-Pin QSOP Package
Ordering Information
ꢀ Low-Profile Components
PART
TEMP. RANGE
IC PACKAGE
ꢀ Fully Assembled and Tested
MAX1717EVKIT
0°C to +70°C
24 QSOP
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
C18
1
1000pF ceramic capacitor (0805)
10µF, 25V ceramic capacitors (1812)
Taiyo Yuden TMK432BJ106KM or
Tokin C34Y5U1E106Z
C1–C4, C20
5
2A Schottky diode
International Rectifier 10MQ040 or
STMicroelectronics STPS2L25U
D1
1
220µF, 2.5V, 15mΩ low-ESR
specialty polymer capacitors
Panasonic EEFUE0E221R
or
470µF, 6.3V, 30mΩ low-ESR
tantalum capacitors
C5, C6, C7
or
3
or
4
100mA Schottky diode
Central Semiconductor CMPSH-3
D2
D3
J1
1
1
200mA switching diode
Central Semiconductor CMPD2838
C5, C6, C7, C10
Kemet T510X477M006AS
Scope-probe jack
Berg Electronics 33JR135-1
1
10µF, 6.3V ceramic capacitor
Taiyo Yuden JMK325BJ106MN
C8
1
JUA0–JUA4,
JUB0–JUB4
10
2-pin headers
C9
C11, C12
C13, C21, C22
C14
1
2
0
1
1
0.1µF ceramic capacitor (1206)
0.22µF ceramic capacitors (1206)
Not installed
1µH power inductor
Sumida CEP125-1R0MC or
Panasonic ETQP6F1R1BFA
L1
1
1
470pF ceramic capacitor (1206)
1µF ceramic capacitor (1206)
N-channel MOSFET (SO-8)
International Rectifier IRF7811 or
IRF 7811A
C15
N1
C17, C19, C23,
C24, C25
5
4700pF ceramic capacitors (0805)
Pentium is a registered trademark of Intel Corp.
Quick-PWM is a trademark of Maxim Integrated Products.
________________________________________________________________ Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.