Microchip Technology MCP16251T-I/CH Повышающий преобразователь

Microchip Technology Boost Converter

The Microchip Technology Boost converter is a 250mA, adjustable converter with 575kHz maximum switching frequency and 6 pin device. It is a compact, high efficient with a fixed frequency, synchronous step-up DC-DC converter.

Features and Benefits

• 650mA typical Peak input current limit:
• Adjustable output voltage ranges between 1.8V to 5.5V
• Anti ringing control
• Automatic PFM/PWM operation
• Input to output bypass shutdown
• Inrush current limiting and internal soft start
• Internal compensation
• Internal synchronous rectifier
• -IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
• -IOUT > 225 mA @ 3.3V VIN, 5.0V VOUT
• -IOUT > 250 mA @ 2.4V VIN, 3.3V VOUT
• Low device quiescent current: <4μA typical
• Low start up voltage is 0.82V
• Over-temperature protection
• PWM operation at 500kHz
• Shutdown current is 0.6μA typical
• True load disconnect shutdown option (MCP16251)
• Up to 96% typical efficiency

Applications

• 3.3V to 5.0V distributed power supply
• Bias for status LEDs
• Bluetooth headsets
• Digital cameras
• MP3 players
• One, two and three cell alkaline and NiMH/NiCd portable products
• Personal care and medical products
• Portable instruments
• Remote con