MIC23099 Datasheet PDF - Micrel Semiconductor Single AA/AAA Cell Step-Up/Step-Down Regulators Specs

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

Datasheet Summary

Description

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.

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 to 200mA Anti-ringing control circuit to minimize EMI Turn-on inrush current limiting and soft-start Automatic output discharge Low-battery indicator Power Good (PG) output Low output ripple < 10mV S.

Datasheet Details

Part number	MIC23099
Manufacturer	Micrel Semiconductor
File Size	2.11 MB
Description	Single AA/AAA Cell Step-Up/Step-Down Regulators
Datasheet	MIC23099 Datasheet
Additional preview pages of the MIC23099 datasheet.

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Full PDF Text Transcription

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MIC23099 Single AA/AAA Cell Step-Up/Step-Down Regulators with Battery Monitoring General Description 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 powered from the boost output voltage, is enabled. This configuration allows VOUT2 to be independent of battery voltage, thereby allowing the buck output voltage to be higher or lower than the battery voltage. To minimize switching artifacts in the audio band, both the converters are design to operate with a minimum switching frequency of 80kHz for the buck and 100kHz for the boost.

Published: Aug 13, 2014 |