Product category:
Power Supply ICs and Controllers
News Release from: Micrel | Subject: MIC4690
Edited by the Electronicstalk Editorial
Team on 24 July 2001
Faster regulator saves on passives
Micrel has increased the operating frequency of its SuperSwitcher SO-8 buck regulator to 500kHz.
Micrel has increased the operating frequency of its SuperSwitcher SO-8 buck regulator to 500kHz The higher operating frequency of the MIC4690 allows the use of smaller inductors and capacitors, saving designers valuable board space and cost
This article was originally published on Electronicstalk on 5 Dec 2000 at 8.00am (UK)
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World's simplest buck regulator boosted to 2A
Micrel has boosted the output capability of the industry's simplest surface-mount DC/DC switching convertor to 2A while retaining the device's original SO-8 packaging.
While increasing the operating frequency to 500kHz, Micrel has not sacrificed the other key performance features of the SuperSwitcher family.
The MIC4690 boasts a wide input voltage range of 4 to 34V, and a high 1.3A output current.
Only four external components are required with the MIC4690, making it a very simple to use solution.
"The MIC4690 is ideal for applications where space is critical.
Its high operating frequency allows the use of small inductors and capacitors.
Its fused power SO-8 leadframe allows over 1.3A of continuous output current, replacing bulky D2PAK and TO-220 packages", says Tony Grizelj, Micrel's marketing manager for power products.
The MIC4690 allows robust designs with built-in safety features such as a cycle-by-cycle current limit, frequency foldback short circuit protection, and thermal shutdown.
The MIC4690 is available in an adjustable output voltage version, with fixed 3.3V and 5.0V output versions coming soon.
The MIC4690BM is housed in a SO-8 package and priced at $2.30 when purchased in 1000-piece quantities.
Samples are available from stock, and production quantities are stock to 12 weeks ARO.
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