123456789012345678901234567890121234567
41
All specifications are typical at nominal line and full load at 25°C unless
otherwise noted and are subject to change without notice.
10 to 40 Watts
Single Outputs
9-18 Vdc inputs
18-32 Vdc inputs
Efficiency to 80%
Regulated output
TheSWandCWSeriesarehighly
efficient, single output DC/DC
converters. Proportional energy
transfer techniques enable these
encapsulated modular converters to
maintain well regulated outputs despite
large variations in input voltage. The
2:1 input range makes the SW and CW
Series ideal for applications where the
input dc power is derived from a
battery, a motor generator or other
types of poorly regulated power
sources.
Due to a high efficiency design these
converters operate with no derating
over the entire operating range to
+71°C.
The output of the SW and CW Series
can be trim-adjusted by user added
circuitry to fine tune for optimum supply
voltage
Applications
The SW and CW Series are designed
for battery-powered or portable, space-
critical applications, as well as other
applications not requiring input-output
isolation.
SW, CW Series
INPUT
Voltage Range
9-18Vdc
18-32 Vdc
OUTPUT
Voltage Tolerance
± 2% (trim adjustable)
Ripple and Noise
7mVRMS to 3 Amps
13 mVRMS >3 Amps
Overvoltage Protection
Available with crowbar
add option C
Short Circuit Protection
Power Foldback
Trim Adjustability
±10% (typ)
Temperature Coefficient
0.02% / °C
GENERAL
Regulation:
Line
0.3% Output to 3 Amps
0.5% Output above 3 Amps
Load
0.3% Output to 3 Amps
0.5% Output above 3 Amps
Efficiency
60-80% (typ)
I/O Isolation
Not galvanically isolated
ENVIRONMENTAL
Operating Temperature
-25°C to +71°C No Derating
Storage Temperature
-25°C to +105°C
Cooling
Free-air Convection