LTC3621EDCB-2

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3621EDCB-2 is a high-efficiency, 17V input, 1A synchronous monolithic step-down regulator from Analog Devices. It operates with a fixed switching frequency of 1MHz or 2.25MHz, allowing for a ±40% synchronization range. The device features ultra-low quiescent current and maintains high efficiency across a wide output voltage range. Input voltage spans 2.7V to 17V, while the output is adjustable from 600mV to 17V. It supports forced continuous mode operation and includes shutdown functionality.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology with integrated power switches
• Ultra-low quiescent current for extended battery life
• Fixed 1MHz or 2.25MHz switching frequencies with synchronization capability
• Wide input voltage range supporting diverse power sources

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable equipment
• Industrial control systems
• Communication infrastructure
• Embedded computing platforms

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix codes against official Analog Devices documentation to confirm package type, temperature grade, and lead-free status. Ensure compatibility with required output voltage settings and switching frequency configurations before procurement. Cross-reference datasheet revisions to validate pinout and electrical characteristics.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when low static current and high efficiency are critical for battery-operated applications. The fixed 1MHz frequency allows for compact passive component selection. Verify that the required output voltage falls within the adjustable range and that the load current does not exceed 1A. Consider thermal performance in the final PCB layout design.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3621 family of synchronous step-down regulators. The series is designed for applications requiring high efficiency and low noise. Variants in the family differ primarily by switching frequency options, package styles, and temperature ranges. The DCB package indicates a specific surface-mount form factor suitable for space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include other LTC3621 variants such as LTC3621IDCB-2 or LTC3621IMS8E-2, provided pinouts and electrical specifications match. Verify that substitute parts support the same 1MHz switching frequency and 1A output current requirements. Check for equivalent quiescent current and input voltage range specifications.