TPS610987DSET

Overview

The TPS610987DSET is a synchronous boost converter with an integrated LDO, manufactured by Texas Instruments. It operates from an input voltage range of 0.7V to 4.5V. The device provides a fixed output voltage of 4.3V at a maximum current of 50mA for the boost section. The integrated LDO delivers 200mA. It features ultra-low quiescent current and supports adjustable switching frequencies. The component is housed in a compact 6-WSON (1.5x1.5mm) package and operates within a temperature range of -40°C to 85°C.

Feature Summary

• Integrates a synchronous boost converter and a low-dropout regulator (LDO) in a single package.
• Features ultra-low quiescent current for extended battery life in portable applications.
• Includes VSUB active discharge functionality to manage sub-supply voltage during shutdown.

Applications

• Portable consumer electronics requiring efficient power management from single-cell batteries
• Wearable devices with strict space and power constraints
• IoT sensors and modules operating on limited energy sources

Procurement Notes

Verify the specific suffix DSET corresponds to the tape-and-reel packaging configuration required for your assembly process. Confirm that the 4.3V fixed output aligns with your system design needs, as other variants in the TPS61098x family offer different output voltages or current capabilities. Ensure compatibility with your PCB footprint for the 6-WSON package.

Selection Notes

Select this part when a combined boost and LDO solution is needed from a low-voltage source. The fixed 4.3V output suits applications requiring a stable intermediate rail. Consider the 50mA boost limit for load requirements. The integrated LDO provides additional regulation for sensitive analog circuits. Evaluate thermal performance given the small package size under full load conditions.

Part Context

This component belongs to the TPS61098x series of ultra-low quiescent current synchronous boost converters. The series integrates power switches and control logic to maximize efficiency in space-constrained designs. The TPS610987DSET specifically denotes the variant with a 4.3V fixed boost output and integrated LDO, distinguishing it from adjustable or single-output counterparts.

Replacement Considerations

Direct substitutes include other TPS61098x variants such as TPS610981DSET or TPS610988DSET, depending on required output voltage and current specifications. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.