Microchip logo
  • All
  • Products
  • Documents
  • Applications Notes
product primary image

MCP1640 Single Quad-A Battery Boost Converter Reference Design

Part Number: MCP1640RD-4ABC

Summary:

The MCP1640 Single Quadruple-A Battery Boost Converter Reference Design demonstrates how the MCP1640 device, with the True Output Disconnect Shutdown option, works attached to a microcontroller application. This board demonstrates how to optimize battery life using the MCP1640, and an 8-bit low cost PIC microcontroller, to reduce the No Load Input Current for applications that operate in Standby

View More
Documents and Software
Overview
Features
Additional Resources
Related Tools

Additional resources data currently not available.

Documents and Software

Product Features

    • Input voltage: one AAAA Alkaline battery
    • Output voltage: 3.3V
    • Output current: < 130 mA
    • Up to 75% efficiency
    • Standby battery current: 14.5 μA @ 1.5V input
    • Start-up voltage: 0.65V at VIN = 1.2V, VOUT = 3.3V and IOUT = 1 mA, resistive load
    • Automatic PFM/PWM operation
    • PWM Switching Frequency = 500 kHz
    • ON/OFF switch button, with 25 seconds ON
    • LED status indication (Output ON and Low Battery)
    • Energizer® Battery Holder with reverse battery protection

Summary

The MCP1640 Single Quadruple-A Battery Boost Converter Reference Design demonstrates how the MCP1640 device, with the True Output Disconnect Shutdown option, works attached to a microcontroller application. This board demonstrates how to optimize battery life using the MCP1640, and an 8-bit low cost PIC microcontroller, to reduce the No Load Input Current for applications that operate in Standby mode for a long period of time. During Standby, the enable signal for the MCP1640 has a low frequency, with less than 1% positive duty cycle. This maintains the output of the MCP1640 device up to 2.3V, which is sufficient to keep the PIC microcontroller live. This solution reduces up to 80% of the No Load Input Current the MCP1640 consumes in PFM Mode.

Package Contents

The MCP1640 Single Quadruple-A Battery Boost Converter Reference Design demonstrates how the MCP1640 device, with the True Output Disconnect Shutdown option, works attached to a microcontroller application. This board demonstrates how to optimize battery life using the MCP1640, and an 8-bit low cost PIC microcontroller, to reduce the No Load Input Current for applications that operate in Standby mode for a long period of time. During Standby, the enable signal for the MCP1640 has a low frequency, with less than 1% positive duty cycle. This maintains the output of the MCP1640 device up to 2.3V, which is sufficient to keep the PIC microcontroller live. This solution reduces up to 80% of the No Load Input Current the MCP1640 consumes in PFM Mode.