The LTC3621IDCB-25 is a high-efficiency, synchronous monolithic step-down regulator from Analog Devices Inc., designed to deliver a fixed output voltage of 2.5V. This compact and versatile power management solution is housed in a 6-pin DFN package, making it ideal for space-constrained applications.

Key Features

• High Efficiency: Capable of up to 95% efficiency, the LTC3621IDCB-25 ensures minimal power loss during operation, making it suitable for battery-powered devices.
• Wide Input Voltage Range: With an input voltage range of 2.7V to 17V, it supports a variety of power sources, from single-cell Li-Ion batteries to fixed 12V power rails.
• Fixed Output Voltage: The device provides a stable 2.5V output, which is essential for consistent performance in sensitive electronic circuits.
• Low Quiescent Current: Its low quiescent current helps in preserving battery life, especially in standby and low-power modes.
• High Switching Frequency: With a switching frequency of up to 2.25MHz, the LTC3621IDCB-25 allows for the use of small, low-cost capacitors and inductors, further reducing the overall solution size.
• Thermal Protection: The built-in thermal protection feature safeguards the device against overheating, ensuring reliable operation under various conditions.
• Current Mode Operation: Provides excellent line and load regulation along with a fast transient response.

Applications

The LTC3621IDCB-25 is suited for a diverse range of applications, including but not limited to:

• Portable Instruments
• Battery-Powered Equipment
• Automotive Power Supplies
• Embedded Systems
• Point-of-Load Regulators

Summary

With its robust feature set and compact form factor, the LTC3621IDCB-25 from Analog Devices Inc. represents an excellent choice for designers looking to optimize power efficiency and save space in their applications. Whether it's for portable devices or fixed power supplies, this regulator provides a reliable and high-performance solution for a wide array of power management challenges.