DESCRIPTION

· The MIC23060 is a highly efficient power management IC integrating a high-frequency DC/DC converter with HyperLight Load™ mode and a low input voltage capable LDO.

· It offers two output voltages at very high efficiency, maintaining a low total system cost.

· The IC provides sequencing of the two outputs in every potential combination of turn-on and turn-off sequencing.

· The LDO can post-regulate from the output of the DC/DC converter or power directly from the battery.

· The DC/DC converter is a HyperLight Load™ converter with high efficiency across all operating modes.

· The MIC23060 operates with small ceramic output capacitors and tiny inductors, reducing required board space and component cost.

FEATURES

· 2.7V to 5.5V supply voltage range.

· Tiny 12-pin 2.5mm x 2.5mm Thin MLF® package.

· Integrated sequencing with adjustable delay time between outputs.

· Zero-current off mode, current-limit, and thermal shutdown protection.

· HyperLight Load™ DC/DC Converter: Up to 600mA output current, 4MHz frequency, 85% efficiency at 1mA, >90% peak efficiency.

· LDO Regulator: Low input voltage, stable with ceramic capacitors, 300mA output current, ±3% accuracy, >60dB PSRR, 16µA quiescent current.

APPLICATIONS

· Mobile phones.

· PDAs/pocket PCs.

· Digital cameras/DSP power supply.