Microchip MCP1640DT-I/CHY MCP1640DT-I/CHY DC-DC Switching Boost Step Up Regulator Adjustable 650mV-5.5Vin 2V-5.5Vout 350mAout SOT-23-6

The MCP1640DT-I/CHY is a 0.65V start-up synchronous Boost Regulator with true output disconnect or input/output bypass option. The MCP1640D 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.

• Up to 96% typical efficiency
• 800mA Typical peak input current limit
• 0.65V Low start-up voltage
• 0.35V Operating input voltage
• Automatic PFM/PWM operation
• PWM operation at 500kHz
• 19µA Typical PFM mode low device quiescent current
• <1µA Shutdown current (all states)
• Internal synchronous rectifier
• Internal compensation
• Inrush current limiting and internal soft-start
• True load disconnect shutdown
• Low noise, anti-ringing control
• Over-temperature protection

Applications

Power Management, Medical, Wireless, Sensing & Instrumentation, Automotive

Warnings ESD sensitive device, take proper precaution while handling the device. Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Other details

Brand	MICROCHIP
Part Number	MCP1640DT-I/CHY
Quantity
Technical Data Sheet EN
Product Change Notice EN
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