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.
Feature
- Up to 96% Typical Efficiency
- 650 mA Typical Peak Input Current Limit:
- 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
- True Load Disconnect Shutdown
- Input to Output Bypass Shutdown Option (MCP16252)
- Anti-Ringing Control
- Over-temperature Protection
- SOT23-6 or 2x3 8-Lead TDFN packages
