LT1934IDCB-1#TRMPBF

Overview

The LT1934IDCB-1#TRMPBF is a micropower step-down DC/DC converter manufactured by Analog Devices Inc. It features an internal power switch and operates within a wide input voltage range of 3.2V to 34V. The device supports adjustable output voltage and switching frequency, with a maximum output current capability of 300mA. It utilizes a TSOT-23-6 package for surface mount installation. Key electrical specifications include a quiescent current of 12µA and a shutdown mode that disconnects the load from the input source.

Feature Summary

• Integrates a high-efficiency internal power switch for compact design
• Features Burst Mode operation for optimized light-load efficiency
• Includes zero-current shutdown mode to isolate the load during sleep
• Supports adjustable switching frequency via external resistor

Applications

• Battery-powered systems requiring low standby current
• 5V logic rail regulation from higher voltage sources
• Unregulated wall transformer power supplies
• Lead-acid battery management circuits

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm RoHS compliance status and specific packaging details such as reel size against official datasheets. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly. Cross-reference part numbers carefully to distinguish between similar variants in the LT1934 family.

Selection Notes

Select this component when designing space-constrained applications requiring wide input voltage tolerance. Consider the 12µA quiescent current for battery longevity. Evaluate thermal performance based on the TSOT-23-6 package limitations under continuous load. Verify that the required output voltage and current fall within the adjustable regulator's operational boundaries defined in the technical specifications.

Part Context

This part belongs to the LT1934 series of micropower step-down switching regulators. It is designed for applications demanding high efficiency at low currents. The IDCB suffix indicates the DFN-6 package variant, while TRMPBF denotes tape and reel packaging with lead-free finish. It serves as a power management solution for portable electronics and industrial sensors.

Replacement Considerations

LT1934ES6-1#TRPBF offers similar functionality in a TSOT-23-6 package. LT1934EDCB-1 provides equivalent performance in a DFN-6 package. Verify pinout compatibility and thermal characteristics before substitution.