NXI110 Series
Single output, 5 Bit Selectable (Non-Isolated)
DC/DC CONVERTERS 110W Non-isolated DC/DC Converters
1
• Meets VRM9.0 specification
• High efficiency: 84% typical @ Vin = 12V, Vout = 1.7V, Iout = 60A
• Multi-phase power conversion
• Microprocessor voltage identification input
- 5 Bit VID input
- 1.10V to 1.85V in 25mV steps
• Remote enable pin
• Power good signal
• True double ended differential remote sense
• Democratic current sharing, no need for
master/slave configuration
• Up to 50A/µsec load transient no load to full load,
recovery within 50µsec
• Overcurrent and short circuit protection
• Overvoltage protection with on board fuse
• Vertical plug-in to standard motherboard connector
• No minimum load requirement
The NXI110 non-isolated DC/DC converters are designed to meet the exceptionally fast transient response
requirements of today’s microprocessors and fast switching logic in a compact size at a very affordable price.
Advanced Circuit techniques, component selection and placement optimization, state-of-the-art thermal packaging,
and Surface Mount Technologies provide a high power density, highly reliable, and very precise voltage regulation
system for advanced microprocessors. Multi-phase power conversion techniques allow the NXI converters to lead
the industry with regard to conversion efficiency without adding unneccesary complexity. VRM9.0 specification
compliant without the need for expensive external components. On board active current sharing circuit guarantees
the current sharing specification is met both during both static and dynamic load conditions.
2 YEAR WARRANTY
All specifications are typical at nominal input, full load at 25°C unless otherwise stated
SPECIFICATIONS
OUTPUT SPECIFICATIONS
GENERAL SPECIFICATIONS
Voltage adjustability
See table
0.8%
Efficiency
1V7, 1V85 output @ 60A
1V10 output @ 60A
84%
76%
Set point accuracy
Vout
Switching frequency
Standards
Fixed (See Note 3)
900kHz
Ripple and noise
(See Note 1)
20MHz bandwidth
15mV pk-pk
94V-0 Flammability rating
Transient response
peak dev. settling time
(See Note 2)
125mV
50µs
Weight
75g (2.64 oz)
MTBF
Bellcore TR-332
2,000,000 hours
(See Note 4)
Short circuit protection
Continuous
automatic recovery
Mating connector
INPUT SPECIFICATIONS
Input voltage range
Input current
ENVIRONMENTAL SPECIFICATIONS
12Vin nominal
11.0 to 13.2VDC
Maximum temperature
shock
Operating
5˚C/10 min.
No load
Remote OFF
300mA
40mA max.
Temperature shock
Operating
Non-operating
10˚C/hour
20˚C/hour
UVLO turn ON voltage
UVLO turn OFF voltage
10.8V typ.
9.5V typ.
Humidity
Operating
Storage
85% RH
95% RH
Start-up time
Nominal line
10ms
Altitude
Operating
Storage
10,000 feet max.
50,000 feet max.
Active high remote ON/OFF
Logic compatibility
ON
Ref. to -input
5.0VDC
0.8VDC max.
Open circuit voltage
Shock
Operational and
non-operational
50G 11ms
half sine wave
OFF
Vibration
(See Note 5)
Operational and
non-operational
0.02G2/Hz max.
Electrostatic discharge
Operating (See Note 6)
Non-operating
ESD 15kV
ESD 25kV
Thermal performance
(See Note 7)
Operating ambient
temperature
0 to +60ºC
File Name: NXI110.PDF Rev: 02 May 2002
