General Description
The MIC39500 and MIC39501 are 5A 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 MIC39500/1 offers extremely low dropout (typically 400mV at 5A) and low ground current (typically 70mA at 5A).

Features
• 5A minimum guaranteed output current
• 400mV dropout voltage
    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 and reversed-lead insertion protection
• Reversed-leakage protection
• Fast transient response
• TO-263 and TO-220 packages
• TTL/CMOS compatible enable pin (MIC39501 only)
• Error fl ag output (MIC39501 only)
• Ceramic capacitor stable (See Application Information)

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