TPS61055DRCT

Overview

The TPS61055DRCT is a high-power white LED driver featuring a synchronous boost converter topology. Manufactured by Texas Instruments, it operates within an input voltage range of 2.5 V to 6 V and delivers up to 1.2 A output current. The device supports a switching frequency of 2 MHz and provides a regulated output voltage of 5.5 V. It utilizes a VSON-10 package for surface-mount installation. Operational parameters include a minimum input voltage of 2.5 V, maximum input voltage of 6 V, and a fixed switching frequency of 2 MHz. The component functions across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a synchronous boost converter architecture optimized for high-power white LED applications.
• Supports standard logic interface control for flexible system integration.
• Delivers regulated output current capability suitable for driving high-intensity LED loads.

Applications

• High-power white LED illumination systems
• Portable electronic device backlighting
• Flash lighting circuits in mobile devices

Procurement Notes

Verify the specific ordering suffix 'DRCT' corresponds to the cut-tape packaging format required for your assembly process. Confirm that the VSON-10 package dimensions align with your PCB footprint design rules. Ensure thermal management strategies account for the power dissipation characteristics of the synchronous boost topology under maximum load conditions. Cross-reference the manufacturer's latest datasheet revision to confirm compliance with current RoHS standards and environmental regulations before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring a compact solution for driving high-power white LEDs from single-cell lithium-ion or similar power sources. The 2 MHz switching frequency allows for the use of smaller passive components compared to lower-frequency alternatives. Consider the 1.2 A output current limit when sizing external inductors and ensuring adequate thermal performance within the VSON-10 package constraints for the intended application environment.

Part Context

This part belongs to the TPS6105x series of LED drivers from Texas Instruments. It is specifically engineered as a DC-DC regulator step-up converter designed for PWM dimming applications. The device integrates the necessary control logic and power switches into a small form factor, distinguishing it from general-purpose boost converters by its specialized interface and current regulation features tailored for lighting loads.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative models from the same manufacturer family.