General Description
The MIC5249 is an efficient, precise 300mA CMOS voltage regulator with power on reset (POR) delay which can be implemented via an external capacitor. It offers 1% initial accuracy, extremely low dropout voltage (typically 400mV @ 300mA), and low ground current (typically 85mA) over load.

FEATUREs
• 300mA output current
• High PSRR: 65dB@120Hz
• Stable with ceramic output capacitor
• Power-on-Reset (POR) output with adjustable delay time
• High output accuracy:
    − ±1.0% initial accuracy
    − ±3.0% over temperature
• Low dropout voltage of 340mV @ 300mA
• Low quiescent current: 85µA
• Zero current shutdown mode
• Thermal-shutdown and current-limit protection
• Tiny MSOP-8 package

APPLICATIONs
• Cellular phones
• PDAs
• Fiber optic modules