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LM2596 DC-DC 3-35V Stepdown Power Supply Module (HCMODU0024)
http://forum.hobbycomponents.com/viewtopic.php?f=78&t=1963
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Author:  admin [ Fri Mar 04, 2016 4:09 pm ]
Post subject:  LM2596 DC-DC 3-35V Stepdown Power Supply Module (HCMODU0024)

Image

This DC to DC Step-Down Adjustable Power Supply Module is based on the LM2596 switching regulator.

Input voltage: 4-35V
Output Voltage: 1.5-35V (adjustable)
Output current: rated current 2A, maximum 3A (heat sink required)
Conversion efficiency: Up to 92% (the higher the voltage, the higher the efficiency)
Switching Frequency: 150KHz
Rectifier: Non-Synchronous Rectification
Module Properties: Non-isolated step-down module (buck)
Short circuit protection: current limiting
Operating temperature: Industrial grade (-40 to +85) (output power 10W or less)
Full load temperature rise: 40
Load regulation: ± 0.5%
Voltage regulation: ± 0.5%
Dynamic response speed: 5% 200uS

Output ripple:
Input 12V Output 5V 3A 60mV (MAX)
Input 24V Output 12V 3A 120mV (MAX)

Dimensions:
L4.3cm x W2cm x H1.4cm

Author:  mmcp42 [ Wed Feb 08, 2017 2:00 pm ]
Post subject:  Re: LM2596 DC-DC 3-35V Stepdown Power Supply Module (HCMODU0

I just bought five of these from you
they are all working ok, but ...
there seems to be two different sizes
not normally a problem, but I sized a PCB for the smaller board, and, of course, the bigger ones don't fit
is there any way of obtaining only the smaller size boards (43mm x 20mm) instead of the larger ones (48mm x 23mm)
thanks

Author:  andrew [ Wed Feb 08, 2017 3:40 pm ]
Post subject:  Re: LM2596 DC-DC 3-35V Stepdown Power Supply Module (HCMODU0

Sorry about this. I've looked into it and it does seem an that older batch we received last year did have larger dimensions. Our normal stock should be the smaller sized as advertised. If you need to be sure when placing an order the best thing to do is to either send an email to sales at hobbycomponents.com or just leave a note in the order when you checkout and we'll make sure they are the size you require.

For your existing issue if you send an email to sales referencing this post we'll see if we do something to resolve it.

Author:  mmcp42 [ Wed Feb 08, 2017 4:28 pm ]
Post subject:  Re: LM2596 DC-DC 3-35V Stepdown Power Supply Module (HCMODU0

thanks for that
email on its way to Sales

(nice board by the way - runs really cold!)

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