General Description
The MIC29311 is a 3A, fast response, low-dropout (LDO) voltage regulator. Using Micrel’s proprietary Super βeta PNP™ process, the MIC29311 offers exceptional dropout (600mV at 3A) and low ground current (60mA at 3A). Fast transient response allows it to recover quickly from large load changes while maintaining a steady output. The device can be sent into a “zero-current” off mode when the TTL compatible enable is brought low.

Features
• Fast transient response
• 3A output current over full temperature range
• 600mV dropout voltage at full load
• Low ground current
• 3% total accuracy
• “Zero” off-mode current
• Thermal Shutdown
• Current Limiting
• Reversed battery protection
• Fixed 5.1V Output

Applications
• Self-powered USB hubs
• USB power switching
• High-efficiency linear power supplies
• High-efficiency switching supply post-regulator