NPH25S SERIES
Isolated 25W Single Output DC-DC Converters
features
p High Efficiency to 89%
p Power Density up to 1.78W/cm3
(28W/in3)
p 1.5kV Input to Output Isolation
p Industry Standard Pinout
p UL 1950 Recognised
p Non Latching Current Limit
p Constant 350kHz Frequency
p Versatile Control Options
p Continuous Rating to 30W at 60°C
Without Heatsink
pin connections
p Operation to Zero Load
Single Output Type (top view)
p Protected Against All Load Faults
p Internal Over Temperature Protection
p Uses No Electrolytic Capacitors
p UL 94V-0 Package Materials
0V
ADJ*
–V
IN
description
+V
IN
The NPH25S series of DC-DC Converters
combines ease of application with versatility. The
pin pattern is based on the popular industry
standard, but two additional pins may optionally
be fitted to provide a variety of features not
commonly found on units of this type. High
efficiency enables full rating to be achieved in a
small package without heatsinking, and a high
surge capability will provide for start-up and
transient loads, whilst being thermally protected
against sustained overload. Overload protection
of the “constant current” type ensures start-up
into complex load conditions. The copper case
achieves efficient heat transfer and screening.
The product range has been recognised by
Underwriters Laboratory (UL) to UL 1950 for
operational insulation, file number E179522
applies.
SS*
+V
OUT
*Optional
UL 1950 RECOGNISED
File Number E179522.
PRELIMINARY
Notice : This is not a final specification.
Some parametric limits may be subject to change.
Newport Components
NPH25S SERIES 1