ADM00458 MCP16251 and MCP1640B Synchronous Boost Converters Evaluation Board

The MCP16251 and MCP1640B Synchronous Boost Converters Evaluation Board is used to evaluate and demonstrate Microchip Technology’s MCP16251 and MCP1640B products. This board demonstrates the MCP16251/MCP1640B in two boost-converter applications with multiple output voltages. It can be used to evaluate both package options (SOT-23-6 and 2x3 mm 8-(T)DFN). The MCP16251 and MCP1640B Synchronous Boost Converters Evaluation Board was developed to help engineers reduce the product design cycle time. Three common output voltages can be selected: 2.0V, 3.3V and 5.0V. The output voltage can be changed with a mini-dip switch that changes the external resistor divider. A switch connected to the EN pin is used to enable and disable the converters. When enabled, the MCP16251/MCP1640B will regulate the output voltage; when disabled, the MCP16251/MCP1640B disconnects the path from input to output for “true-disconnect”.

Devices Supported: MCP16251, MCP1640B

It can be powered by one-cell, two-cell, or three-cell alkaline, NiCd, NiMH, one-cell Li-Ion or Li-Polymer batteries

Input voltage range (VIN ): 0.35V to 5.5V, with VIN ≤ VOUT

Fixed output voltage: 2.0V or 3.3V and 3.3V or 5.0V, selected using a mini-dip switch on board

Output current: typical 125 mA @ 3.3V Output, 1.5V Input or 200 mA @ 5.0V
Output, 3V Input

Start-up voltage: 0.82V (for MCP16251’s Converter) or 0.65V (for MCP1640B’s Converter) at VOUT = 3.3V and IOUT= 1mA, resistive load

Automatic PFM/PWM Operation for the MCP16251 Converter

PWM Switching Frequency = 500 kHz

Enable state, selectable using the mini-dip switch on board

Peak Input Current Limit (800mA for MCP1640 or 650mA for MCP16251)

Over-temperature Protection

Documentation & Software

Documents	Last Updated	Size
MCP1640/B/C/D Data Sheet	9/28/2015 4:36:09 AM	738KB
MCP16251 and MCP1640B Synchronous Boost Converters Evaluation Board User's Guide	7/12/2013 4:42:38 PM	375KB
MCP16251 and MCP1640B Sync Boost Converters Eval Board (ADM00458) BOM	7/2/2013 5:10:07 PM	14KB
MCP16251 and MCP1640B Sync Boost Converters Eval Board (ADM00458) Gerbers	7/2/2013 5:10:07 PM	533KB
MCP16251/MCP16252 Data Sheet	3/27/2013 1:44:38 PM	1MB