MCP1640

MCP1640/B/C/D 0.65V Start-Up Synchronous Boost Regulator with True Output Disconnect or Input/Output Bypass Option Features Up to 96% Typical Efficiency 800 mA Typical Peak Input Current Limit: - IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT - IOUT > 350 mA @ 2.4V VIN, 3.3V VOUT - IOUT > 350 mA @ 3.3V VIN, 5.0V VOUT Low Start-Up Voltage: 0.65V, typical 3.3V VOUT @ 1 mA Low Operating Input Voltage: 0.35V, typical 3.3VOUT @ 1 mA Adjustable Output Voltage Range: 2.0V to 5.5V Maximum Input Voltage  VOUT < 5.5V Automatic PFM/PWM Operation (MCP1640/C): - PFM Operation Disabled (MCP1640B/D) - PWM Operation: 500 kHz Low Device Quiescent Current: 19 µA, typical PFM Mode (not switching) Internal Synchronous Rectifier Internal Compensation Inrush Current Limiting and Internal Soft Start Selectable, Logic Controlled Shutdown States: - True Load Disconnect Option (MCP1640/B) - Input to Output Bypass Option (MCP1640C/D) Shutdown Current (All States): < 1 µA Low Noise, Anti-Ringing Control Overtemperature Protection Available Packages: - 6-Lead SOT-23 - 8-Lead 2 x 3 mm DFN Applications One, Two and Three Cell Alkaline and NiMH/NiCd Portable Products Single-Cell Li-Ion to 5V Converters Li Coin Cell Powered Devices Personal Medical Products Wireless Sensors Handheld Instruments GPS Receivers Bluetooth Headsets +3.3V to +5.0V Distributed Power Supply General Description The MCP1640/B/C/D is a compact, high-efficiency, fixed frequency, synchronous step...