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 OUT Adjustable Output Voltage Range: 1.8V to 5.5V
PWM Operation at 1 MHz
Shutdown Current (All States): 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
