Datasheet

Figure 1
DE-SWADJ Adjustable Switching Voltage Regulator
Features
Drop-in replacement for any of the LM78XX
regulators
Outputs any voltage between 1.25v and 13v
Adjustment is by a 25-turn potentiometer, making
it easy to dial in exactly the right output
3 to 30V input voltage
Up to 10W output power
1A continuous output current
2
Efficiency up to 92%
Integrated bypass capacitors
Integrated heat sink
Weighs onl
y
5
.
5
g
Applications
Battery powered applications
Robots
Battery charging and maintenance
Point of load voltage regulation
Any application needing a nonstandard voltage
Overclocking and over or under-volting standard
products for more performance or less power draw
General Description
The DE-SWADJ is designed to be the easiest
possible way to utilize the benefits of switch-
mode power when you need an unusual or
easily changed voltage. The DE-SWADJ
family is pin-compatible with the common
78XX family of linear voltage regulators, and
can provide an output from 1.25v to 13v with
no external circuitry required. It has integrated
decoupling capacitors, so external capacitors
are not generally necessary.
The DE-SWADJ operates over a wide input
voltage range, from 3v to 30v, at up to one
amp of continuous output current. Maximum
power output is 10W. Efficiencies are up to
92% (Figure 2). Ripple is less than 2% of
output.
The DE-SWADJ works on a breadboard,
making it an ideal solution for prototyping and
one-off circuits.