MCP1640/B/C/D Data Sheet
http://www.microchip.com/stellent/images/mchpsiteimages/dwnfolder.gifMCP1640/B/C/D Data SheetThe MCP1640/40B/40C/40D is a compact, high-efficiency, fixed frequency, synchronous step-up DC-DC converter. It provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell, or three-cell alkaline, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries. The The MCP1640/40B/40C/40D provides very high efficiency through integration of the low resistance N-Channel Boost switch and synchronous P-Channel switch.
Parameter NameValue
Device DescriptionStep-up DC/DC Regulator
SW Reg OutputVariable
Typical Active Supply (µA)19
Switching Frequency (kHz)500
Output Current (mA)350
Output Voltage (V)2.0 to 5.5
Input Voltage Range (V)0.65 to 5.5
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
Low Operating Input Voltage: 0.35V
Adjustable Output Voltage Range: 2.0V to 5.5V
Maximum Input Voltage < VOUT < 5.5V
Automatic PFM/PWM Operation: PWM Operation at 500 kHz
Low Device Quiescent Current: 19 μA, typical PFM Mode
Internal Synchronous Rectifier
Internal Compensation
Inrush Current Limiting and Internal Soft-Start
True Load Disconnect Shutdown
Shutdown Current (All States): < 1 μA
Low Noise, Anti-Ringing Control
Overtemperature Protection
SOT23-6 or 2x3 8-Lead DFN packages
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