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Need for Switching mode Power Supply from 24V to 5V

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dkace

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lm2574 power supply

I need a device as above that can drive a 500mA load . Can someone suggest something?
 

7rots51

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LM2574 and similar parts from national semiconductor do the task,but they are non-isolated,you can also buy DC/DC converters at reaonable prices from TI and minmax(www.minmax.com.tw) they have 24 to 5 at 0.5A
 

Black Jack

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We have positive result with NATIONAl LM3478 + external MOSFET
with this IC you can make many others topologies.
In our case we develop -60V -> -12 V with common +60 rail.
 

VVV

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LM2574 is easy to use and gives you 5V@0.5A
 

seyyah

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Are there any products with 230VAC in and 5VDC@1A out?
 

Black Jack

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seyyah said:
Are there any products with 230VAC in and 5VDC@1A out?

See STM Viper or Power Integration TOPSwitch families
 

kobik

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Linear has a free program (SwCADIII)
you can insert your inputs (Vin, Vout, I...)
and the program draw a schematic

h**p://www.linear.com/company/software.jsp
 

iberia

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use lm2596 National is veri good
 

metal

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Hello

You might want to examine TI's sample list for plug-in power solutions...

Regards
 

elnenez

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Take a look at maxim-ic homepage. E.g., MAX831 is a DC-DC step down converter, 5V 0.5A output, and high efficiency.
 

ezpcb

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MC34063 is very cheap and easy to design, it can be configured as step-up or step-down mode. But it's working freq is low, that means a big inductor is needed.

Mike



-----------------------------------------------------------
www.ezpcb.com
 

fuzzy

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From TI TL497 very good ic
 

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