TPS61140DRCR

Overview

The TPS61140DRCR is a dual output boost converter IC from Texas Instruments, designed for white LED and OLED driver applications. It features a single inductor topology with a 2.5 V to 6 V input voltage range and up to 27 V output overvoltage protection. The device operates at a fixed 1.2 MHz switching frequency and provides two independent channels capable of delivering up to 700 mA per switch. Packaged in a 10-pin VSON (3x3 mm) surface-mount case, it supports PWM dimming and synchronous rectification for high efficiency.

Feature Summary

• Dual channel architecture utilizing a single inductor for space-constrained designs
• Integrated synchronous rectification for improved power conversion efficiency
• Supports PWM dimming control for precise brightness management
• Built-in overvoltage protection ensures system reliability under fault conditions

Applications

• White LED backlight drivers for portable electronics
• OLED display panel driving circuits
• Dual-output boost regulation in mobile devices
• Compact lighting systems requiring high integration

Procurement Notes

Verify the exact ordering suffix to ensure the correct package variant and tape/reel specifications match your assembly requirements. Confirm that the active status and lead times align with production schedules. Cross-reference the manufacturer part number with distributor catalogs to avoid substitution errors during procurement.

Selection Notes

Select this component when a compact dual-output solution is required without the complexity of multiple inductors. Ensure the input voltage range of 2.5 V to 6 V matches the source supply. Verify that the 1.2 MHz frequency fits within EMI constraints and that the VSON-10 package accommodates the thermal and spatial limits of the PCB layout.

Part Context

This part belongs to the TPS61140 series of dual output boost regulators. It shares functional similarities with other TI LED driver ICs but is distinct in its single-inductor dual-channel configuration. The DRCR suffix specifically denotes the VSON-10 package and reel packaging format, differentiating it from other pinout or package variants in the family.

Replacement Considerations

Direct substitutes include the TPS61140DRCT for cut-tape packaging. Other dual-channel boost converters may require schematic redesign due to differing pinouts or control interfaces. Always verify electrical parameters and thermal characteristics before swapping components.