TPS61140DRCT

Overview

The TPS61140DRCT is a dual output boost converter IC from Texas Instruments, designed for highly integrated power solutions. It features a single inductor topology to provide both regulated voltage and constant current outputs. The device operates within an input voltage range of 2.5 V to 6 V and supports a switching frequency of 1.2 MHz. It delivers up to 700 mA output current with two channels. The component is housed in a VSON-10 package (3x3 mm) and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Dual output configuration using a single inductor for space-efficient design
• Integrated boost converter providing simultaneous regulated voltage and constant current
• High switching frequency of 1.2 MHz enabling compact passive component selection

Applications

• OLED sub-display drivers in flip phones
• White LED backlighting systems
• Portable electronic devices requiring dual power rails

Procurement Notes

Verify the specific suffix 'DRC' corresponds to the VSON-10 package and tape/reel packaging format as documented in the official datasheet. Confirm that the part number matches the exact electrical specifications required for the target application, particularly the 2.5V to 6V input range and 700mA current capability. Ensure compatibility with the intended operating temperature range of -40°C to +85°C before finalizing procurement.

Selection Notes

Select this component when a single-inductor dual-output solution is required to minimize board space. It is suitable for applications needing both a regulated voltage rail and a constant current source for LEDs. Consider the 1.2 MHz switching frequency for trade-offs between efficiency and passive size. Ensure the input voltage stays within the 2.5V to 6V window for proper operation.

Part Context

The TPS61140 belongs to a family of dual output boost regulators from Texas Instruments. It shares architectural similarities with the TPS61150 but differs in specific output voltage capabilities. The DRCT suffix indicates a cut-tape or reel variant of the DRC package. This series is targeted at mobile and portable consumer electronics where integration and efficiency are critical.

Replacement Considerations

The TPS61150DRCT is a related model within the same family. Verify if the specific output voltage requirements of the application align with the TPS61150's specifications before considering substitution. Both share similar package and interface characteristics.