Microchip Boost Converter, Surface, 5.5V Output Voltage, 800 mA Output Current

MCP1642 Synchronous Boost Converter

The MCP1642 family of devices from Microchip are compact, high-efficiency, fixed-frequency, synchronous step-up DC-DC converters. These regulators are designed for applications powered by alkaline, NiCd, NiMH, Li-Ion or Li-Polymer batteries.

Features

• Up to 96% Typical Efficiency
• 1.8A Typical Peak Input Current Limit
• I_OUT > 175 mA @ 1.2V V_IN, 3.3V V_OUT
• I_OUT > 600 mA @ 2.4V V_IN, 3.3V V_OUT
• I_OUT > 800 mA @ 3.3V V_IN, 5.0V V_OUT
• I_OUT > 1A @ V_IN > 3.6V, 5.0V V_OUT
• Low Start-up Voltage: 0.65V
• Minimum Operating Input Voltage: 0.35V
• Maximum Input Voltage < V_OUT < 5.5V
• Adjustable Output Voltage Range: 1.8V to 5.5V
• PWM Operation at 1 MHz
• Shutdown Current (All States): < 1 μA
• Internal Synchronous Rectifier
• Internal Compensation
• Inrush Current Limiting and Internal Soft-Start
• True Load Disconnect Shutdown (MCP1642B)
• Input-to-Output Bypass Option (MCP1642D)
• Low Noise, Anti-Ringing Control
• Over-temperature Protection