Data Sheet
October 5, 2009
NaOSTM NXA025 SIP Non-isolated Power Modules:
10Vdc – 14Vdc Input; 0.8Vdc to 5.5Vdc Output; 25A Output Current
Features
RoHS Compliant
Compliant to RoHS EU Directive 2002/95/EC (-Z
versions)
Compliant to ROHS EU Directive 2002/95/EC with
lead solder exemption (non-Z versions)
Delivers up to 25A output current
High efficiency – 93% at 3.3V full load
Small size and low profile:
31.7 mm x 50.8 mm x 8.50 mm
(1.25 in x 2.00 in x 0.335 in)
Low output ripple and noise
Constant switching frequency (500 kHz)
Output voltage programmable from 0.8 Vdc to
5.5Vdc via external resistor
Applications
Remote On/Off
Distributed power architectures
Remote Sense
Intermediate bus voltage applications
Telecommunications equipment
Servers and storage applications
Networking equipment
Parallel operation with current sharing (-P option)
Output voltage sequencing (multiple modules)
Output overvoltage protection
Overtemperature protection
Enterprise Networks
Output overcurrent protection (non-latching)
Wide operating temperature range (-40°C to 85°C)
UL* 60950-1Recognized, CSA† C22.2 No. 60950-1-
03 Certified, and VDE‡ 0805:2001-12 (EN60950-1)
Licensed
Latest generation IC’s (DSP, FPGA, ASIC)
and Microprocessor powered applications
ISO** 9001 and ISO 14001 certified manufacturing
facilities
Description
The NXA025 series SIP (single-in line package) 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. The 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, output voltage sequencing of multiple modules,
over current, over voltage, and over temperature protection.
*
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: DS05-034 ver 1.53
PDF name: nxa025_sip_ds.pdf