MIC23099 Datasheet (Micrel Semiconductor) - Single AA/AAA Cell Step-Up/Step-Down Regulators

MIC23099, Single AA/AAA Cell Step-Up/Step-Down Regulators

The MIC23099 is a high-efficiency, low-noise, dual-output, integrated power-management solution for single-cell alkaline or NiMH battery applications.

The synchronous boost output voltage (VOUT1) is enabled first and is powered from the battery.

Next the synchronous buck output (VOUT2), which is pow

MIC23099 Features

* VIN range from 0.85V to 1.6V VOUT1 (step-up) adjustable from 1.8V to 3.3V VOUT2 (step-down) adjustable from 1.0V to VOUT2 VOUT1/400mW and VOUT2/30mA from a single cell Minimizes switching noise in the audio band Step-up regulator with output disconnect in shutdown VOUT1, above 90% efficiency for 5mA