MIC5219-2.8YM5-TR

The MIC5219 is an efficient linear voltage regulator with high peak output current capability, very low dropout voltage, and better than 1% output voltage accuracy. Dropout is typically 10 mV at light loads and less than 500 mV at full load. The MIC5219 is designed to provide a peak output current for start-up conditions where higher inrush current is demanded. It features a 500 mA peak output rating. Continuous output current is limited only by package and layout. The MIC5219 can be enabled or shut down by a CMOS- or TTL-compatible signal. When disabled, power consumption drops nearly to zero. Dropout ground current is minimized to help prolong battery life. Other key features include reversed-battery protection, current limiting, overtemperature shutdown, and low noise performance with an ultra-low noise option. The MIC5219 is available in adjustable or fixed output voltages in the space-saving 6-pin (2 mm × 2 mm) VDFN, 6-pin 2 mm × 2 mm Thin DFN, SOT23-5, and 8-pin power MSOP packages.

Applications

• Laptop, Notebook, and Palmtop Computers
• Cellular Telephones and Battery-Powered Equipment
• Consumer and Personal Electronics
• PC Card VCC and VPP Regulation and Switching
• SMPS Post-Regulator/DC-to-DC Modules High-Efficiency Linear Power Supplies

Key features

• 500 mA Output Current Capability - SOT23-5 Package - 500 mA Peak - 2 mm x 2 mm x 0.9 mm VDFN Package - 500 mA Continuous - 2 mm x 2 mm x 0.6 mm Thin DFN Package - 500 mA Continuous - MSOP-8 Package - 500 mA Continuous
• Low 500 mV Maximum Dropout Voltage at Full Load
• Extremely Tight Load and Line Regulation
• Tiny SOT-23-5 and Power MSOP-8 Package
• Ultra-Low Noise Output
• Low Temperature Coefficient
• Current and Thermal Limiting
• Reversed-Battery Protection
• CMOS/TTL-Compatible Enable/Shutdown Control
• Near-Zero Shutdown Current