Maxim Integrated MAX8621YETG+T Step-Down Converter

The MAX8621YETG+T is a high-efficiency, compact, synchronous step-down DC-DC converter designed by Maxim Integrated to meet the needs of modern portable electronics. It is an ideal power management solution for battery-powered devices such as smartphones, tablets, and other handheld gadgets where space is at a premium and efficiency is crucial.

The device operates from a 2.6V to 5.5V input voltage range, making it compatible with single-cell lithium-ion batteries, and it can deliver up to 600mA of continuous output current. With an adjustable output voltage from 0.8V to VIN, the MAX8621YETG+T provides the flexibility needed to power a variety of low-voltage digital cores and peripherals.

Incorporating a high-frequency PWM control scheme, the converter achieves excellent transient response and high efficiency across a wide load range. The 3MHz switching frequency allows for the use of small, low-cost ceramic capacitors and inductors, reducing the overall footprint of the power supply on the PCB.

The MAX8621YETG+T also features a range of protective functions to ensure the longevity and reliability of the end application. These include over-temperature protection, under-voltage lockout, and over-current protection. The device comes in a compact, 8-pin thin QFN package, which is ideal for space-constrained applications.

To further enhance battery life, the MAX8621YETG+T offers a high-efficiency, low-quiescent-current mode that reduces power consumption when the load is light. In addition, the device supports a shutdown mode that reduces the quiescent current to a mere 0.1µA, minimizing drain on the battery during standby periods.

Overall, the Maxim Integrated MAX8621YETG+T is a versatile and efficient solution for power management in portable devices, combining high performance with a small footprint and advanced protective features to ensure safe and reliable operation.

Key Features:

• 2.6V to 5.5V Input Voltage Range
• Up to 600mA Output Current
• Adjustable Output Voltage (0.8V to VIN)
• 3MHz Switching Frequency
• High Efficiency Across Load Range
• Over-Temperature, Over-Current, and Under-Voltage Protection
• Low-Quiescent-Current and Shutdown Modes
• Compact 8-Pin Thin QFN Package