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331-mcp1640rd-4abc
331-mcp1640rd-4abc

Part Number: MCP1640RD-4ABC

MCP1640 SINGLE QUAD-A BATTERY BOOST CONVERTER REFERENCE DESIGN

  • 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
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Overview

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.
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All Application Notes

Documentation

Title
Document Id
MCP1640 Single Quadruple-A Battery Boost Converter Reference Design Download 0af50368-f801-4376-9742-33a65aedc7e7
MCP1640 Quad A Reference Design Gerbers Download 6f3700aa-fac6-4ecb-a9ae-a383b5dcebf7

Application Notes

Title
Date
Document Category
Optimizing Battery Life in DC Boost Converters Using MCP1640 06 Oct 2010 Link Application Notes

Software

Title
Date
MCP1640 Quad A Reference Design Firmware Download 18 Nov 2010