MICROCHIP MCP16251T-I/CH DC-DC Switching Boost Step Up Regulator, Adjustable, 350mV-5.5Vin, 1.8V-5.5Vout, 225mAout, SOT-23-6

The MCP16251T-I/CH 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 14?A 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 0.6?A from battery.

• Up to 96% typical efficiency
• 0.82V Low start-up voltage
• Low operating input voltage down to 0.35V
• Maximum input voltage, <lt/>VOUT <lt/>5.5V
• Automatic PFM/PWM operation
• PWM operation at 500kHz
• <lt/>4µA Typical low device quiescent current
• 0.6µA Typical shutdown current
• Internal synchronous rectifier
• Internal compensation
• Inrush current limiting and internal soft-start
• True load disconnect shutdown
• Anti-ringing control
• Over-temperature protection

Applications

Industrial, Power Management, Medical, Consumer Electronics, Portable Devices, Wireless, Sensing & Instrumentation

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.