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Low Quiescent Current Synchronous Boost Regulator
Overview
- Regulator Type:Step Up (Boost)
- Switching Frequency (kHz) kHz (kilohertz):500
- Input Voltage Range Min:0.82
- Input Voltage Range Max:5.5
- Output Current:250
- Temp Range Min °C (degrees Celsius):-40
- Temp Range Max °C (degrees Celsius):85
- Vout Min (V):1.8
- Vout Max (V):5.5
- Quiescent Current (mA) typ:0.004
- Light Load Efficiency Mode:Yes
- Switch current (A) typ:0.65
- Automotive Qualified:No
- SHUTDOWN Current (µA) (Typ):0.6
- Vfb V (volt):1.23
- Synchronous Rectifier:Yes
- Duty Cycle Max (%):91
- Up to 96% Typical Efficiency
- IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
- IOUT > 250 mA @ 2.4V VIN, 3.3V VOUT
- IOUT > 225 mA @ 3.3V VIN, 5.0V VOUT
- Low Start-up Voltage: 0.82V
- Operating Input Voltage: down to 0.35V
- Adjustable Output Voltage Range: 1.8V to 5.5V
- Maximum Input Voltage < VOUT < 5.5V
- Automatic PFM/PWM Operation
- PWM Operation at 500 kHz
- Low Device Quiescent Current: <4 µA typical
- Shutdown Current: 0.6 µA typical
- Internal Synchronous Rectifier
- Internal Compensation
- Inrush Current Limiting and Internal Soft-Start
- Input to Output Bypass Shutdown
- True Load Disconnect Shutdown Option (MCP16251)
- Anti-Ringing Control
- Over-temperature Protection
- SOT23-6 or 2x3 8-Lead TDFN packages
The MCP16251/2 is a compact, high-efficiency, fixed frequency, synchronous step-up DC-DC converter. This family of devices provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell or three-cell alkaline, NiCd, NiMH and one-cell Li-Ion or Li-Polymer batteries.
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Tools And Software
Development Environment
Library and Firmware
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 Online power solutions, accelerated
MPLAB Analog Designer (MAD) allows you to choose an existing solution or customize a suggested design. Schematics and component lists are included. View or modify your choice and, with one click, export the design files to MPLAB Mindi Analog Simulator for verification and analysis.
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["developmentenvironment","Development Environment"] ,
["emulators","Emulator and Debuggers"] ,
["demoevaluationboards","Demo & Evaluation Boards"] ,
["programmerrelations","Programmers"] ,
["thirdpartytools","3rd Party Tools"] ,
["legacy","Legacy"] ,
["softwarelibraries","Library and Firmware"]
referencedesigns,Reference Designs:
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