MCP16251T-I/CH

MCP16251 系列 低瞬态电流 同步 升压 稳压器-SOT-23

The 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. 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. MCP16251 operates and consumes less than 14µA from battery, while operating at no load VOUT = 3.3V, VIN = 1.5V. The devices provide a true disconnect from input to output MCP16251 or an input-to-output bypass MCP16252, while in shutdown EN = GND. Both options consume less than 0.6µA from battery.

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Up to 96% typical efficiency

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0.82V Low start-up voltage

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Low operating input voltage down to 0.35V

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Maximum input voltage, <VOUT <5.5V

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Automatic PFM/PWM operation

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PWM operation at 500kHz

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<4µA Typical low device quiescent current

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0.6µA Typical shutdown current

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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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Anti-ringing control

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Over-temperature protection

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