TPS61141DRCT

Overview

The TPS61141DRCT is a dual-output boost converter IC designed for LED backlighting applications. It integrates two independent current sources capable of delivering up to 700mA per channel, utilizing a single inductor topology. The device operates at a fixed switching frequency of 1.2MHz and supports PWM dimming control. It features a wide input voltage range from 2.5V to 6V and provides overvoltage protection up to 22V on the output nodes. Packaged in a compact 10-VSON (3x3mm) footprint, it ensures efficient power management for portable electronic devices requiring high-brightness white LED illumination.

Feature Summary

• Dual independent LED current channels driven by a single inductor
• Integrated 1.2MHz switching frequency for compact passive component size
• Supports PWM dimming for precise brightness control
• Built-in overvoltage protection on output nodes

Applications

• Mobile phone LCD backlighting
• Tablet computer display illumination
• Portable media player backlight systems
• Digital camera flash units

Procurement Notes

Verify the specific suffix 'DRCT' corresponds to the cut-tape packaging variant rather than the reel variant 'DRCR'. Confirm that the component status aligns with current production cycles, as some listings may indicate obsolete status or limited availability. Ensure compatibility with the 10-VSON package dimensions during PCB layout verification. Cross-reference the manufacturer's latest datasheet revision to confirm pinout integrity and electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when designing dual-LED backlight circuits requiring independent current regulation from a single energy storage element. It is suitable for applications needing high efficiency and minimal board space due to the integrated switch and 1.2MHz operation. Consider the 2.5V minimum input voltage constraint for battery-powered designs. Evaluate thermal performance requirements given the 700mA output capability within the small VSON package.

Part Context

This part belongs to the Texas Instruments TPS6114x family of dual-output boost converters. It shares architectural similarities with the TPS61140 but offers specific current and protection configurations tailored for advanced mobile displays. The DRCT suffix denotes a tape-and-reel cut option, distinct from the standard bulk reel configuration found in other variants within the same product line.

Replacement Considerations

The TPS61141DRCR serves as the identical functional alternative differing only in packaging format (reel versus cut tape). Direct cross-model replacements require careful evaluation of input voltage ranges and current limits against competitors like the TPS61140.