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说明

MCP16251/2是一款紧凑、高效、固定频率、同步升压DC-DC转换器。该系列设备为单电池、双电池或三电池碱性、镍镉、镍氢和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。

特性

• 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
• 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

参数