The MAX1721EUT from Maxim Integrated is a high-efficiency, low-quiescent-current boost converter that is ideal for battery-powered applications. This compact and versatile component is designed to operate from a single-cell lithium-ion (Li+) battery but can also be powered by other single-cell sources such as alkaline, NiMH, and NiCd batteries. Its primary function is to step-up the input voltage to a higher, regulated output voltage, which is necessary for powering devices that require a voltage level that exceeds the battery voltage.

Key Features:

• Adjustable Output Voltage: The MAX1721EUT allows for an adjustable output voltage ranging from 2.5V to 5.5V, which can be set by external resistors. This flexibility makes it suitable for a wide array of applications.
• High Efficiency: With efficiencies up to 96%, this boost converter ensures minimal power loss during voltage conversion, thereby extending battery life for portable devices.
• Low Quiescent Current: The device features an ultra-low quiescent current of just 7µA, which is critical for battery conservation in standby and idle modes.
• Small Package: The MAX1721EUT comes in a tiny, 6-pin SOT23 package, making it an excellent choice for space-constrained applications.
• Pulse Frequency Modulation (PFM) Control: For improved efficiency at light loads, the device operates with PFM control, which reduces switching losses by decreasing the switching frequency.

Applications:

• Portable and Battery-Powered Devices
• Bluetooth Headsets and Accessories
• Handheld Instruments
• Medical Devices
• Power Backup Supplies

The MAX1721EUT is a reliable and high-performance solution for designers looking to boost the voltage in their battery-powered applications. Its small size and high efficiency make it an ideal choice for portable electronics where space and power conservation are of utmost importance. Maxim Integrated's commitment to quality ensures that the MAX1721EUT meets the stringent requirements of modern electronic devices.