LTC3406BES5-1.8#TRMPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3406BES5-1.8#TRMPBF is a high-efficiency monolithic synchronous buck regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 2.5V to 5.5V and provides a fixed output voltage of 1.8V at up to 600mA. The device utilizes a constant frequency, current mode architecture with a switching frequency of 1.5MHz. It features Burst Mode operation for low load currents and pulse-skipping mode for noise-sensitive applications. The component is housed in a TSOT-23-5 package and supports an operating temperature range from -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous step-down topology with integrated power switches
• Constant frequency current mode control architecture
• Low noise pulse-skipping mode for sensitive applications
• High efficiency performance across load ranges

Voltage Regulators - DC DC Switching Regulators Applications

• Single-cell lithium-ion battery powered systems
• Portable consumer electronics requiring small footprint
• Noise-sensitive analog circuits needing clean power rails
• Battery-operated devices utilizing burst mode efficiency

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix #TRMPBF indicates tape and reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the part number matches the exact electrical specifications required for your design, particularly the fixed 1.8V output and 600mA current limit. Check for RoHS compliance status if required by your manufacturing standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for single-cell lithium-ion applications. The TSOT-23-5 package offers space savings compared to larger regulators. Choose the B-version variant specifically for its improved noise characteristics in pulse-skipping mode, which is critical for RF or audio-sensitive designs where standard Burst Mode might introduce audible noise or interference.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3406 family of synchronous buck regulators designed for high efficiency in small packages. It complements other PMICs from Analog Devices by offering a dedicated low-noise option within the ThinSOT form factor. The family includes adjustable versions and different fixed output voltages to suit various digital logic levels.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitutes include the LTC3406ES5-1.8#TRPBF for standard operation without the low-noise B-feature. The DC500A-F evaluation board is available for testing the LTC3406BES5-1.8 functionality before integration.