MIC2800-1.8 Datasheet PDF - Micrel

General Description
The MIC2800 is a high performance power management IC, giving three output voltages with maximum efficiency. Integrating a 2MHz DC/DC converter with an LDO post regulator, the MIC2800 gives two high efficiency outputs with a second, 300mA LDO for maximum flexibility. The
MIC2800 features a LOWQ™ mode, reducing the total current draw while in this mode to less than 30µA. In LOWQ™ mode, the output noise of the DC to DC converter is 75µVRMS, significantly lower than other converters which use a PFM light load mode that can interfere with sensitive RF circuitry.

FEATUREs
• 2.7V to 5.5V input voltage range
• 2MHz DC/DC converter and two stand-alone LDOs
 –  LDO1: Low input voltage is powered directly from
DC/DC converter for highest efficiency
• Integrated power-on reset (OR function for all outputs)
 –  Adjustable delay time
•LOWQ™ mode
 –  30µA Total IQwhen in LOWQ™ mode
• Tiny 16-pin 3mm x 3mm MLF® package