Microchip Technology's MCP1640T-I/MC Boost Converter

The MCP1640T-I/MC is a compact, high-efficiency, fixed-frequency, synchronous step-up DC-DC converter from Microchip Technology, designed to provide a power supply solution for devices operating from a single-cell alkaline, NiCd, NiMH, or Li-Ion battery. Its ability to convert low voltage inputs to higher outputs makes it ideal for portable electronic devices where extended battery life is critical.

Key Features

• Input Voltage Range: The device supports an input voltage range of 0.35V (start-up) to 5.5V, ensuring compatibility with low-voltage power sources and the ability to maintain operation through varying battery levels.
• Adjustable Output Voltage: Users can set the output voltage from 2.0V to 5.5V to match the requirements of the load, providing flexibility across different applications.
• High Efficiency: With a typical efficiency of over 90%, the MCP1640T-I/MC helps to maximize battery life, which is crucial for wearable technology, wireless sensors, and other portable devices.
• Low Quiescent Current: The device features a low quiescent current of 19 μA, contributing to minimal power loss during idle periods and further extending battery life.
• True Output Disconnect: This feature allows the output to be completely disconnected from the input when the device is disabled, preventing battery drain.
• Shutdown Mode: The MCP1640T-I/MC can be put into shutdown mode, reducing the quiescent current to 0.1 μA to conserve power when the load is not in use.
• Frequency of Operation: The device operates at a fixed frequency of 500 kHz, allowing for the use of small surface-mount inductors and capacitors to minimize the overall footprint of the power supply circuitry.

Applications

The MCP1640T-I/MC is suitable for a wide range of applications, including but not limited to:

• Portable electronics
• Wireless sensors
• Energy harvesting
• Medical devices
• Bluetooth® headsets
• Backup power supplies

The MCP1640T-I/MC is available in a small 5-pin TSOT-23 package, making it an excellent choice for space-constrained applications. Its robust design, along with Microchip's commitment to quality, ensures reliable operation even in challenging environments.