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说明

MCP1640/40B/40C/40D是一款紧凑、高效、固定频率、同步升压DC-DC转换器。它为单电池、双电池或三电池碱性、镍镉、镍氢、单电池锂离子或锂聚合物电池供电的应用提供了一种易于使用的电源解决方案。MCP1640/40B/40C/40D通过集成低电阻N通道升压开关和同步P通道开关，提供了非常高的效率。

特性

• Up to 96% Typical Efficiency
• IOUT > 100 mA @ 1.2V VIN, 3.3V VOUT
• IOUT > 350 mA @ 2.4V VIN, 3.3V VOUT
• IOUT > 350 mA @ 3.3V VIN, 5.0V VOUT
• Low Start-up Voltage: 0.65V
• Operating Input Voltage: 0.35V
• Adjustable Output Voltage Range: 2.0V to 5.5V
• Maximum Input Voltage < VOUT < 5.5V
• Automatic PFM/PWM Operation
• PWM Operation at 500 kHz
• Low Device Quiescent Current: 19 µA – typical PFM Mode
• Shutdown Current (All States): < 1 µA
• Internal Synchronous Rectifier
• Internal Compensation
• Inrush Current Limiting and Internal Soft-Start
• True Load Disconnect Shutdown
• Low Noise, Anti-Ringing Control
• Over-temperature Protection
• SOT23-6 or 2x3 8-Lead DFN packages

参数