TPS60231RGTTG4

Overview

The TPS60231RGTTG4 is a three-channel charge pump designed for white LED backlighting in color displays. It provides regulated output currents with 0.4% matching accuracy across channels. The device operates from a 2.7V to 6.5V input range and supports switching frequencies up to 1250kHz. It features PWM dimming control and is housed in a 16-VQFN package with an exposed pad, suitable for space-constrained portable applications requiring precise current regulation.

Feature Summary

• Three-channel regulated current source optimized for white LED supplies
• High channel-to-channel current matching accuracy of 0.4%
• Supports PWM dimming control for brightness adjustment

Applications

• Color display backlight systems
• White LED driver circuits
• Portable electronic devices

Procurement Notes

Verify the specific suffix 'G4' against the manufacturer's latest documentation to confirm lead-free status and environmental compliance. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference the datasheet revision date to confirm all electrical characteristics remain consistent with your design specifications before finalizing procurement.

Selection Notes

Select this component when designing multi-channel white LED backlights requiring tight current matching to ensure uniform color temperature. The integrated charge pump topology eliminates the need for external inductors, simplifying the bill of materials. Consider the operating voltage range and thermal performance within the QFN package when evaluating suitability for high-brightness applications in compact form factors.

Part Context

This part belongs to the TPS60231 family of charge pumps manufactured by Texas Instruments. It is specifically engineered for driving white LEDs in display applications. The RGTTG4 designation indicates a specific tape-and-reel packaging option within the QFN package family, distinct from other variants like the RGTRG4 which may differ in frequency or packaging configuration.

Replacement Considerations

The TPS60231RGTRG4 is a documented alternative within the same family. Verify if the switching frequency differences between the TT and TR suffixes impact your specific circuit design requirements before substitution.