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Part Number: ARD00797

MCP16251 SINGLE CELL BOOST CONVERTER WITH EXTERNAL UVLO REFERENCE DESIGN


• Input voltage: one AA Primary or rechargeable battery
• Output voltage: 3.3V
• Output current: < 125 mA
• Typical Efficiency: Up to 96%
• Start-up voltage: 1.15V
• Shutdown voltage: 0.83V
• Automatic PFM/PWM operation
• PWM switching frequency: 500 kHz
• UVLO Quiescent current before start-up: 0.1-0.4 uA
• UVLO Quiescent current after start-up: 1-2 uA

Overview


The MCP16251 Single Cell Boost Converter With External UVLO Reference Design provides an example of how to optimize applications powered from a single AA cell battery by incorporating a ultra low power external under-voltage lockout circuit with hysteresis.

The converter will not (re)start if the battery voltage is lower than 1.14V and will stop working if the battery voltage drops below 0.83V. The external ULVO circuit drains approximately 0.1-0.4 μA before start-up and 1 -2uA after start-up.
Package Contents
MCP16251 Single Cell Boost Converter With External UVLO Reference Design board (ARD00797).

Documentation


Title
Document Id
MCP16251 One-Cell Boost Converter with External UVLO Circuit Reference Design Download 14164459-0003-499e-a1e1-e37f74b19255
MCP16251 Single Cell Boost With Ext UVLO (ARD00797) BOM Download 08502863-e1d0-4d4a-9837-0565772e2cb2
MCP16251 Single Cell Boost With Ext UVLO (ARD00797) Gerbers Download d9058a78-b173-4aaa-a5fd-17fe77ca9464
MCP16251 Single Cell Boost With Ext UVLO (ARD00797) Schematics Download 4736b645-dc92-4e43-9433-d689003eda90
MCP16251/MCP16252 Data Sheet Download 2280956a-0763-4654-936d-b1abcd1d31c6