MCP1640CT-I/CHY

MICROCHIP  MCP1640CT-I/CHY  直流-直流开关升压逐步递增稳压器, 可调, 650mV-5.5V输入, 2V-5.5V输出, 350mA输出, SOT-23-6

The is a 0.65V start-up synchronous Boost Regulator with true output disconnect or input/output bypass option. The MCP1640C is a compact high-efficiency fixed frequency synchronous step-up DC-DC converter provides an easy-to-use power supply solution for applications powered by either one-cell, two-cell or three-cell alkaline, NiCd, NiMH, one-cell Li-ion or Li-polymer batteries. It provides very high efficiency through integration of the low resistance N-channel boost switch and synchronous P-channel switch. Low-voltage technology allows the regulator to start-up without high inrush current or output voltage overshoot from a low 0.65V input. High efficiency is accomplished by integrating the low resistance N-channel boost switch and synchronous P-channel switch. All compensation and protection circuitry is integrated to minimize the number of external components.

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Up to 96% typical efficiency

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800mA Typical peak input current limit

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0.65V Low start-up voltage

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0.35V Operating input voltage

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Automatic PFM/PWM operation

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PWM operation at 500kHz

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19µA Typical PFM mode low device quiescent current

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<1µA Shutdown current all states

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Internal synchronous rectifier

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Internal compensation

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Inrush current limiting and internal soft-start

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True load disconnect shutdown

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Low noise, anti-ringing control

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Over-temperature protection

ESD sensitive device, take proper precaution while handling the device.