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Dimension Engineering 5V 1A Switching Regulator


Vendor's Description: 


I have yet to order one, but these things are amazing! They take a input voltage of any value between 6.3V-30VDC and it outputs a steady 5VDC at up to 1A of power! They have a larger price tag than a 7805, but uses less power by converting extra power into needed power, or what I like to call a watt converter, from 30VDC at x amps to 5vdc at up to 1 amp. Very efficient!  I would put a 3 pin PWM cable style connector on it so you can move it from robot to robot, afterall it is 15 dollars. Dropout is 1.3VDC, meaning you would have to get the input voltage 1.3VDC higher than the output voltage for any model of these LDO switching voltage regulators.

 

* FROM ROBOTSHOP.US *

 

• Steps voltages down to 5V more effeciently then normal LDO regulators
• Integrated decoupling capacitors

The DE-SW0XX family of switch mode voltage regulators are designed to be the easiest possible way to add the benefits of switch-mode power to a new or existing project. A Dimension Engineering 5V 1A Switching Voltage Regulator will allow you to take a higher voltage and it step down a 5V output in a compact, efficient manner. This product is pin-compatible with the common 78XX family of linear voltage regulators. They have integrated decoupling capacitors, so external capacitors are not generally necessary.

Performance:

Up to 30V input range
83% typical efficiency, up to 87%
<2% ripple
1A output (continuous)
1.25A peak output (1 min)
1.3V typical dropout voltage at full load
Can be put in parallel

Applications:
Battery powered applications
Robots
Point of load voltage regulation
Any application where a linear or LDO regulator is dissipating too much heat or a large heatsink is undesirable

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Based on the datasheet, min input(edit typo) is 1.3+vout, vout being either 3.3 or 5v, you'd need 6.3v minimum for 5vout and 4.6v for 3.3. check out the datasheet  at the bottom of the page for this component.

http://www.robotshop.us/Dimension-Engineering-Switching-Regulato.html

The most I've seen from a boost converter is around 3v to 5v at about 40ma....

Looking at the graph though, you are right, it looks to be pretty efficient...just a tad expensive compared to the 7805.

No typo! It is a switching regulator/watt converter! If you are using a higer voltage, say 30VDC at 2.5A it is going to last a long time. If you have 1.3VDC at 2.5A it wont last long.
hrmmm.. 1.3v-30v input to get 5v@1A? I think this is a typo.....would be damn cool if you could get 5v@1A out of 1.3v input...  :)