NXI100 Series
DC-DC CONVERTERS
Single output
81 A Non-Isolated DC-DC Converters
NEW Product
1
•
Designed for VRM9.0 and VRM9.1 specification
•
Low profile: 1.15 inches including mating connector
•
Microprocessor voltage identification input
- 5 Bit VID input
- 1.10 Vdc to 1.85 Vdc in 25 mV steps
•
Up to 50 A/µs load transient no load to full load,
recovery within 50 µs
•
Democratic current sharing, no need for master/slave
configuration
•
High efficiency: 87% typical @ Vin = 12 V,
Vout = 1.5 V, Iout = 60 A
•
Available RoHS compliant
The NXI100 non-isolated dc-dc converter simplifies the application of Intel Xeon
(TM)
or
Pentium®4 processors by providing a purpose-designed, point-of-load, power management
solution for low-profile applications. Capable of delivering 81 A, and meeting the exceptional
transient response requirements of these loads, the converter comes in a versatile, PCB-
pluggable form. Artesyn utilizes advanced circuit techniques, component selection and
state-of-the-art thermal packaging, to deliver reliable high power density. Multi-phase power
conversion provides industry-leading conversion efficiency without adding unneccesary
complexity, and NXI100 meets the precise regulation specifications of VRM9.0/9.1 without
expensive external components. An active circuit guarantees the current sharing
specification is met during static or dynamic loading conditions.
All specifications are typical at nominal input, full load at 25 °C unless otherwise stated
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
Output setpoint accuracy Vout
Ripple and noise
(See Note 1)
Transient response
peak dev. settling time
Short circuit protection
INPUT SPECIFICATIONS
Input voltage range
Input current
12 Vin nominal
Operating
No load
OUTEN low
11-12.6 Vdc
13.6 A
300 mA
40 mA max.
9.9 V typ.
8.5 V typ.
Nominal line
10 ms
20 MHz bandwidth
(See Note 2)
See table
±0.8%
15 mV pk-pk
50 mV
25 µs
Continuous current
automatic recovery
GENERAL CHARACTERISTICS
Efficiency
Switching frequency
Standards
Weight
MTBF
Mating connector
ENVIRONMENTAL SPECIFICATIONS
Maximum temperature
shock
Temperature shock
Humidity
Altitude
Operating
Operating
Non-operating
Operating
Storage
Operating
Storage
Operational
Non-operational
Vibration
(See Note 5)
Electrostatic discharge
(See Note 6)
Thermal performance
(See Note 7)
Operational and
non-operational
Operating
Non-operating
Operating ambient
temperature
Non-operating
5 ºC/10 min.
10 ºC/hour
20 ºC/hour
85% RH
95% RH
10,000 feet max.
50,000 feet max.
30 G 11 ms,
half sine wave
50 G 11 ms,
half sine wave
0.02 G
2
/Hz max.
ESD 15 kV
ESD 25 kV
0 ºC to +60 ºC
-40 ºC to +100 ºC
Telcordia SR-332
1.5 V output @ 60 A
1.7 V output @ 60 A
Fixed (See Note 3)
87%
87%
990 kHz
94V-0 flammability rating
40 g (1.41 oz)
850,000 hours
(See Note 4)
UVLO turn ON voltage
UVLO turn OFF Voltage
Start-up time
OUTEN
Logic compatibility
ON
OFF
Open circuit voltage
Ref. to -input
5 Vdc
0.8 Vdc max.
Shock
Filename: nxi100.pdf Rev (02): 20 Dec 2005
ARTESYN [ ARTESYN TECHNOLOGIES ]
