LT3154AV#TRPBF

Overview

The LT3154AV#TRPBF is a synchronous buck-boost DC/DC converter from Analog Devices, designed for high-efficiency power management in single-cell lithium-ion battery applications. It operates with an input voltage range of 1.8 V to 5.5 V and delivers up to 5 A of output current. The device supports adjustable output voltages between 1.8 V and 5.5 V. Key electrical specifications include a quiescent current of 17 uA and a fixed switching frequency of 2.2 MHz. It functions within an extended temperature range of -40°C to +125°C and is housed in a compact LQFN-16 surface-mount package.

Feature Summary

• Synchronous buck-boost topology enables efficient operation across wide input voltage variations relative to the output voltage.
• Integrated low-noise linear regulator provides clean power for sensitive analog circuits such as RF transceivers.
• Programmable soft-start limits inrush current during startup to protect system components.
• Thermal foldback protection reduces output current automatically when junction temperature exceeds safe operating limits.

Applications

• Single-cell lithium-ion battery powered portable electronics
• RF transceiver power supply systems requiring low noise regulation
• Industrial handheld devices and instrumentation
• Medical equipment utilizing single-cell battery architectures

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm that the part matches the exact marking on the LQFN-16 package. Request official datasheets and test reports to validate performance against specified parameters before integration into production designs.

Selection Notes

Select this component when designing systems powered by single-cell lithium-ion batteries requiring both buck and boost capabilities. Ensure the required output current does not exceed 5 A and verify that the 2.2 MHz switching frequency aligns with EMI constraints. Consider the LQFN-16 package dimensions for PCB layout compatibility.

Part Context

This part belongs to the LT3154 series of synchronous buck-boost converters. It is specifically engineered for applications where the input voltage may rise above or fall below the desired output voltage, ensuring continuous regulation without requiring multiple power stages.

FAQ

What is the maximum output current capability of the LT3154AV?

The LT3154AV supports a maximum output current of 5 A.

Does the LT3154AV include a dedicated LDO output?

Yes, it integrates a low-noise linear regulator (LDO) output suitable for powering sensitive analog loads.