MIC2800 Datasheet | Micrel Semiconductor

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, 300m A 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. The DC to DC converter uses small values of L and C to reduce board space but still retains efficiencies over 90% at load currents up to 600m A. The MIC2800 is a µCap design, operating with very small ceramic output capacitors and inductors for stability, reducing required board space and ponent cost and it is available in fixed output voltages in the 16-pin 3mm x 3mm MLF® leadless package. Data sheets and support documentation can be found on Micrel’s web site at: .micrel.. 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 IQ when in LOWQ® mode - Tiny 16-pin 3mm x 3mm MLF® package DC to DC Converter - Output current to 600m A in PWM mode - LOWQ® Mode: NO NOISE Light load mode - 75µVRMS output noise in LOWQ® mode - 2MHz PWM operation in normal mode - >90% efficiency LDOs - LDO1 input voltage directly connected to DC/DC converter output voltage for maximum efficiency - Ideal for 1.8V to 1.5V conversion - 300m A output current from 1.8V input - Output voltage down to 0.8V - LDO2 - 300m A output current capable - Thermal Shutdown Protection - Current Limit Protection Applications - Mobile phones - PDAs - GPS receivers - Digital still cameras - Portable media...