"A host of customer friendly features such as internal 5V VDD regulator and PowerGood output, combined with Micrel's unique Hyper Speed Control(tm) architecture, offer terrific benefits such as reduced BOM cost and world class transient response," stated Doyle Slack, director of analog marketing, Micrel. "The MIC2166 is Any Capacitor(tm) stable -- stability is maintained from zero ESR to high ESR, thereby allowing a great degree of flexibility for the designer."
The MIC2166 operates at 600 kHz switching frequency, operates over a supply range of 4.5V to 28V and can be used to provide up to 25A of output current. The device achieves up to 95 percent efficiency, while still switching at high frequencies over a broad load range. An UVLO feature is provided to ensure proper operation under power-sag conditions which prevents the external power MOSFET from overheating. A digital soft start feature is included to reduce the inrush current. Short Current Sensing on the Bottom MOSFET with hiccup ensures protection in case of output short circuit. The MIC2166 includes an enable (EN) input to shutdown the converter and a Power Good output that allows simple sequencing. The device is stable with any output capacitor (zero to high ESR). The MIC2166 is available in a 10-pin ePad MSOP package with a junction operating range from -40degC to +125degC. All supporting documentation, including a datasheet, can be found on Micrel's website at: http://www.micrel.com/page.do?page=/product-info/products/mic2166.jsp
Micrel, Inc. is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: http://www.micrel.com.
Note: Hyper Speed Control and Any Capacitor are trademarks of Micrel, Inc.
Julieanne DiBene, Marketing Communications