MCP16252T-I/CH

MICROCHIP  MCP16252T-I/CH  直流-直流开关升压逐步递增稳压器, 可调, 350mV-5.5V输入, 1.8V-5.5V输出, 225mA输出, SOT-23-8

The is a compact high-efficiency fixed frequency synchronous step-up DC-to-DC Converter for use with solar cell applications. This family of device 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. A low-voltage technology allows the regulator to start up without high inrush current or output voltage overshoot from a low voltage input. High efficiency is accomplished by integrating the low-resistance N-channel boost switch and synchronous P-channel switch. All compensation and protection circuitry are integrated to minimize external components. It operates and consumes less than 14µA from battery, while operating at no load VOUT=3.3V, VIN=1.5V. The device provide a true disconnect from input-to-output bypass, while in shutdown EN = GND. It consume less than 0.6µA from battery.

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Automatic PFM/PWM operation

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Internal synchronous rectifier

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Internal compensation

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Inrush current limiting and internal soft-start 1.5ms typical

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Anti-ringing control

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Over-temperature protection

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Up to 96% typical efficiency

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650mA Typical peak input current limit

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0.82V/1mA Load low start-up voltage

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1µA Input sleep current

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1.23V Feedback voltage