GE Industrial Solutions NaOS NXA025 SMT - Manual

Data Sheet
October 5, 2009
NaOS TM NXA025 SMT Non-isolated Power Modules:
10Vdc – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A Output Current
* UL is a registered trademark of Underwriters Laboratories, Inc.
† CSA is a registered trademark of Canadian Standards Association.
‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V.
** ISO is a registered trademark of the International Organization of Standards
Document No: DS03-030 ver. 1.43
PDF name: nxa025_smt_ds.pdf
Applications
ƒ Distributed power architectures
ƒ Intermediate bus voltage applications
ƒ Telecommunications equipment
ƒ Servers and storage applications
ƒ Networking equipment
ƒ Enterprise Networks
ƒ Latest generation IC’s (DSP, FPGA, ASIC)
and Microprocessor powered applications
Options
ƒ Baseplate version for heatsink attachment
(-H suffix)
ƒ Through Hole version (-L)
ƒ Paralleling with current sharing (-P)
Features
ƒ Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
ƒ Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
ƒ Delivers up to 25A output current
ƒ High efficiency – 93% at 3.3V full load
ƒ Small size and low profile:
47.2 mm x 29.4 mm x 8.50 mm
(1.86 in x 1.16 in x 0.335 in)
ƒ Low output ripple and noise
ƒ Constant switching frequency (500 kHz)
ƒ Surface mount or through hole
ƒ Output voltage programmable from 0.8 Vdc to
5.5Vdc via external resistor
ƒ Remote On/Off
ƒ Remote Sense
ƒ Parallel operation with current sharing (-P option)
ƒ Output voltage sequencing (multiple modules)
ƒ Output overvoltage protection
ƒ Overtemperature protection
ƒ Output overcurrent protection (non-latching)
ƒ Wide operating temperature range (-40°C to 85°C)
ƒ UL* 60950-1Recognized, CSA † C22.2 No. 60950-1-
03 Certified, and VDE ‡ 0805:2001-12 (EN60950-1)
Licensed
ƒ ISO** 9001 and ISO 14001 certified manufacturing
facilities
Description
The NXA025 series SMT (surface-mount technology) power modules are non-isolated dc-dc converters that can
deliver up to 25A of output current with full load efficiency of 93% at 3.3Vdc output voltage. These modules provide
a precisely regulated output voltage from 0.8Vdc to 5.5Vdc, programmable via an external resistor. Their open-
frame construction and small footprint enable designers to develop cost- and space-efficient solutions. Standard
features include remote On/Off, adjustable output voltage, remote sense, active current sharing between parallel
modules, output voltage sequencing of multiple modules, overcurrent, overvoltage, and overtemperature protection.
RoHS Compliant