General Description
The MIC39300, MIC39301 and MIC39302 are 3.0A low dropout linear voltage regulators that provide a low voltage, high-current output with a minimum of external components. Utilizing Micrel’s proprietary Super βeta PNP® pass element, the MIC39300/1/2 offers extremely low dropout (typically 385mV at 3.0A) and low ground current (typically 36mA at 3.0A).

Features
• 3.0A minimum guaranteed output current
• 550mV maximum dropout voltage over temperature
• Ideal for 3.0V to 2.5V conversion
• Ideal for 2.5V to 1.8V conversion
• 1% initial accuracy
• Low ground current
• Current limiting and Thermal shutdown
• Reversed-battery protection
• Reversed-leakage protection
• Fast transient response
• TO-263 (D2Pak) and TO-220 packaging
• TTL/CMOS compatible enable pin (MIC39301/2 only)
• Error flag output (MIC39301 only)
• Adjustable output (MIC39302 only)

Applications
• LDO linear regulator for PC add-in cards
• High-efficiency linear power supplies
• SMPS post regulator
• Multimedia and PC processor supplies
• Low-voltage microcontrollers
• StrongARM™ processor supply