NXI100 Datasheet, PDF (1/3 Pages) Artesyn Technologies – 81 A Non-Isolated DC-DC Converters

NXI100 Series
Single output
DC-DC CONVERTERS 81 A Non-Isolated DC-DC Converters
• 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
1
NEW Product
2 YEAR WARRANTY
SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage adjustability
See table
Output setpoint accuracy Vout
±0.8%
Ripple and noise
(See Note 1)
20 MHz bandwidth
15 mV pk-pk
Transient response
(See Note 2)
peak dev. settling time
50 mV
25 µs
Short circuit protection
Continuous current
automatic recovery
INPUT SPECIFICATIONS
Input voltage range
12 Vin nominal
11-12.6 Vdc
Input current
Operating
No load
OUTEN low
13.6 A
300 mA
40 mA max.
UVLO turn ON voltage
UVLO turn OFF Voltage
9.9 V typ.
8.5 V typ.
Start-up time
Nominal line
10 ms
OUTEN
Logic compatibility
ON
OFF
Open circuit voltage
Ref. to -input
5 Vdc
0.8 Vdc max.
GENERAL CHARACTERISTICS
Efficiency
1.5 V output @ 60 A
1.7 V output @ 60 A
87%
87%
Switching frequency
Fixed (See Note 3)
990 kHz
Standards
94V-0 flammability rating
Weight
40 g (1.41 oz)
MTBF
Telcordia SR-332
850,000 hours
Mating connector
(See Note 4)
ENVIRONMENTAL SPECIFICATIONS
Maximum temperature Operating
shock
Temperature shock
Operating
Non-operating
Humidity
Operating
Storage
Altitude
Operating
Storage
Shock
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 G²/Hz max.
ESD 15 kV
ESD 25 kV
0 ºC to +60 ºC
-40 ºC to +100 ºC
Filename: nxi100.pdf Rev (02): 20 Dec 2005