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765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
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765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
765432121098765432109876543210987654321
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ENVIRONMENTAL
GENERAL
OUTPUT
INPUT
All specifications are typical at nominal line and full load at 25°C unless
otherwise noted and are subject to change without notice.
Operating Temperature
Storage Temperature
Cooling
Voltage Tolerance
Ripple and Noise
Short Circuit Protection
Trim Adjustability
Temperature Coefficient
Efficiency
I/O Isolation
Voltage Range
Regulation:
Line
Overvoltage Protection
Load
SW, CW Series
-25°C to +71°C No Derating
-25°C to +105°C
Free-air Convection
0.3% Output to 3 Amps
0.5% Output above 3 Amps
0.3% Output to 3 Amps
0.5% Output above 3 Amps
60-80% (typ)
Not galvanically isolated
9-18Vdc
18-32 Vdc
± 2% (trim adjustable)
7mVRMS to 3 Amps
13 mVRMS >3 Amps
Available with crowbar
add option C
Power Foldback
±10% (typ)
0.02% / °C
!
9-18 Vdc inputs
18-32 Vdc inputs
!
Efficiency to 80%
!
Regulated output
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.
Applications
The output of the SW and CW Series
can be trim-adjusted by user added
circuitry to fine tune for optimum supply
voltage
Due to a high efficiency design these
converters operate with no derating
over the entire operating range to
+71°C.
he SW and CW Series are highly
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.
T
Single Outputs
10 to 40 Watts
1