Micrel introduces MIC23099 Power Management Solution

Micrel has introduced the MIC23099 power management solution. The device is targeted at single AA/AAA battery cell applications. Operating from a minimum battery voltage as low as 0.85V, the MIC23099 integrates two switching regulators with an intelligent battery monitoring system that provides the necessary power, monitoring and control for today's most demanding portable applications. The MIC23099 is available in volume quantities with 1,000 quantity pricing starting at $1.75.

"The MIC23099 provides a high-performance, highly integrated power management solution that solves the technical challenges in noise sensitive and space-constrained portable applications. The device reduces overall solution size by over 40 per cent and the built-in intelligent power monitoring further reduces system design complexity," noted Brian Hedayati, Vice-President of Marketing for High Performance Linear and Power Solutions, Micrel.

The MIC23099 combines a 1MHz step-up converter capable of delivering 400mW of output power with a step-down converter that provides up to 30mA of output current. Internal sequencing and monitoring control ensures that each regulator starts up in an orderly manner to provide inrush current limiting. Once powered, the regulators and battery are continuously monitored and supervised to ensure proper operation. Other features include an output disconnect switch during shutdown and a low battery monitoring function with LED indicator.

The solution also offers power good output, short circuit, and thermal protection. The device is fully specified from -40 to 125-degC and is offered in a tiny 2.5mm x 2.5mm TQFN package.