MCP1603T-330I/OS

The MCP1603T-330I/OS is a high-efficiency fully-integrated Synchronous Buck Regulator whose 2.7 to 5.5V input voltage range makes it ideally suited for applications powered from 1-cell Li-ion or 2-cell/3-cell NiMH/NiCd batteries. At heavy loads, the MCP1603 operates in the 2MHz fixed frequency pulse-width modulation (PWM) mode, which provides a low noise, low-output ripple, small-size solution. When the load is reduced to light levels, the MCP1603/L automatically changes operation to a Pulse Frequency Modulation (PFM) mode to minimize quiescent current draw from the battery. No intervention is necessary for a smooth transition from one mode to another. These two modes of operation allows the MCP1603 to achieve the highest efficiency over the entire operating current range.

• Over 90% typical efficiency
• 45μA Typical low PFM quiescent current
• 0.1μA Typical low shutdown current
• Automatic PWM-to-PFM mode transition
• 100% Duty cycle operation
• Internally compensated
• Under-voltage lockout (UVLO)
• Over-temperature protection

Applications

Industrial, Portable Devices, Consumer Electronics, 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.