LTC3621IDCB-5#TRPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3621IDCB-5#TRPBF is a high-efficiency, synchronous monolithic step-down regulator from Analog Devices. It supports an input voltage range of 2.7V to 17V and delivers up to 1A output current. The device features fixed switching frequencies of 1MHz or 2.25MHz with a ±40% synchronization range. It offers ultra-low quiescent current and maintains high efficiency across a wide output voltage range.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology for enhanced power conversion efficiency
• Ultra-low quiescent current operation for improved light-load performance
• Fixed switching frequency options with external synchronization capability

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient power management
• Battery-powered systems needing extended operational life
• General-purpose DC-to-DC conversion in compact form factors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging configuration when ordering. Confirm that the IDCB package variant matches the required thermal and footprint specifications for the target PCB design. Ensure compatibility with the intended switching frequency setting before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a 1A output current from a wide input voltage range. Consider the 1MHz or 2.25MHz fixed frequency options based on EMI constraints and inductor size requirements. The synchronous design is suitable where high efficiency at both heavy and light loads is critical.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3621 family of synchronous step-down regulators. It shares core architectural features with other variants in the series, differing primarily in package type, temperature grade, and reel packaging format. The IDCB designation refers to the specific surface-mount package used for thermal and mechanical integration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same family include LTC3621EDCB-5#TRPBF and LTC3621IMS8E-5#TRPBF, provided the package and temperature specifications align with the design requirements.