MCP1642D

MCP1642B/D 1.8A Input Current Switch, 1 MHz Low-Voltage Start-Up Synchronous Boost Regulator Features Up to 96% Typical Efficiency 1.8A Typical Peak Input Current Limit: - IOUT > 175 mA @ 1.2V VIN, 3.3V VOUT - IOUT > 600 mA @ 2.4V VIN, 3.3V VOUT - IOUT > 800 mA @ 3.3V VIN, 5.0V VOUT - IOUT > 1A @ VIN > 3.6V, 5.0V VOUT Low Start-Up Voltage: 0.65V, typical 3.3V VOUT @ 1 mA Low Operating Input Voltage: 0.35V, typical 3.3V VOUT @ 1 mA Output Voltage Range: - Reference Voltage, VFB = 1.21V - 1.8V to 5.5V for the adjustable device option - 1.8V, 3.0V, 3.3V and 5.0V for fixed VOUT options Maximum Input Voltage  VOUT < 5.5V PWM Operation: 1 MHz - Low Noise, Anti-Ringing Control Power Good Open-Drain Output Internal Synchronous Rectifier Internal Compensation Inrush Current Limiting and Internal Soft-Start Selectable, Logic-Controlled Shutdown States: - True Load Disconnect Option (MCP1642B) - Input-to-Output Bypass Option (MCP1642D) Shutd...