LM2576 Buck Regulator - Revision history

69.122.236.170 at 16:42, 17 July 2011

2011-07-17T16:42:44Z

2011-07-11T19:48:21Z

2011-07-10T08:14:30Z

2011-07-10T08:09:29Z

2011-07-10T07:54:38Z

Created page with " http://www.national.com/ds/LM/LM2576.pdf"

New page

http://www.national.com/ds/LM/LM2576.pdf

← Older revision		Revision as of 16:42, 17 July 2011
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−	[[File:LM2576_Pinouts.png\|420px\|thumb\|right\|Package comes in SMT T-263, 5-Lead TO-220]]	+	[[File:LM2576_Pinouts.png\|420px\|thumb\|right\|Package comes in SMT TO-263, 5-Lead TO-220]]

	'''BOM'''		'''BOM'''

← Older revision		Revision as of 19:48, 11 July 2011
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−	This was a Buck Regulator that I chose to use for a few projects. This is good if you want to efficiently convert a higher voltage source to a lower voltage like 12V to 5V. Linear regulators can do this too, but they burn off The power difference as heat. A buck regulator does not. This model comes in many different fix output voltage flavors and it also comes in an adjustable version. It's low cost <$5.	+	This was a Buck Regulator that I chose to use for a few projects. This is good if you want to efficiently convert a higher voltage source to a lower voltage like 12V to 5V. Linear regulators can do this too, but they burn off The power difference as heat. A buck regulator does not. This model comes in many different fix output voltage flavors and it also comes in an adjustable version. It's low cost <$5. In a lot of Rc car projects these things are referred to as Battery Eliminator Circuits (BEC) and sell for ~$40

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-Specs: http://www.national.com/ds/LM/LM2576.pdf
+This was a Buck Regulator that I chose to use for a few projects. This is good if you want to efficiently convert a higher voltage source to a lower voltage like 12V to 5V. Linear regulators can do this too, but they burn off The power difference as heat. A buck regulator does not. This model comes in many different fix output voltage flavors and it also comes in an adjustable version. It's low cost <$5.
-Voltage Out: 1.23 V ~ 37 V
+'''Specs:''' http://www.national.com/ds/LM/LM2576.pdf
-Current Out 3A
+''Voltage In:'' 4 V ~ 40 V
-−
-Highlights: Requires only 2 caps, an inductor and a diode.

← Older revision		Revision as of 08:09, 10 July 2011
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		+	Specs: http://www.national.com/ds/LM/LM2576.pdf

		+	Voltage In: 4 V ~ 40 V

		+	Voltage Out: 1.23 V ~ 37 V

−	http://~~www~~.~~national~~.com/ds/LM/~~LM2576~~.~~pdf~~	+	Current Out 3A
		+
		+	Highlights: Requires only 2 caps, an inductor and a diode.
		+
		+
		+
		+
		+
		+	[[File:LM2576_Schematic.png\|420px\|thumb\|right\|Schematic]]
		+
		+
		+	[[File:LM2576_Pinouts.png\|420px\|thumb\|right\|Package comes in SMT T-263, 5-Lead TO-220]]
		+
		+	'''BOM'''
		+	*100uF Capacitor
		+	*1000uF Capacitor
		+	*100uH Inductor
		+	**http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=445-3750-1-ND
		+	**http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=811-1308-ND
		+	*1N5822 Schottky Diode
		+	**http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=1N5822GOS-ND