The MAX1605EUT-T from Maxim Integrated is a high-efficiency, low-quiescent-current, step-up DC-DC converter designed to provide a regulated voltage from a single cell battery. This compact and versatile component is ideal for portable devices that require a higher voltage supply from a low-voltage source.

Key Features

• Input Voltage Range: The device operates from a +0.7V to +5.5V input voltage range, making it suitable for applications powered by a single-cell lithium-ion (Li-ion) battery or multiple alkaline/NiMH cells.
• Adjustable Output Voltage: The output voltage is adjustable from +2.5V to +5.5V, allowing for flexibility in different design requirements.
• High Efficiency: With a typical efficiency of 87%, the MAX1605EUT-T conserves power and extends battery life, which is critical for portable applications.
• Low Quiescent Current: The device features a low quiescent current of just 25µA (typical), further promoting energy conservation when in operation.
• Small Package: Available in a 6-pin SOT23 package, it occupies minimal board space, which is essential for space-constrained applications.
• Pulse Frequency Modulation (PFM) Control: The PFM control scheme provides high efficiency over a wide range of load conditions.

Applications

The MAX1605EUT-T is well-suited for a variety of applications, including but not limited to:

• Portable Media Players
• Handheld Devices
• Bluetooth Headsets
• Personal Digital Assistants (PDAs)
• Medical Devices
• Power Backup Supplies

Conclusion

Overall, the MAX1605EUT-T voltage regulator is a reliable and efficient solution for boosting battery voltages in portable electronics. Its high efficiency, low quiescent current, and small form factor make it an excellent choice for designers looking to maximize battery life while minimizing space usage.