The TPS61042DRBR is a high-frequency, boost-converter integrated circuit (IC) designed and manufactured by Texas Instruments (TI), a leader in semiconductor solutions. This compact and efficient chip is specifically tailored for driving white LEDs from a single-cell lithium-ion battery or a 3.3V supply rail, making it an ideal choice for portable devices that require backlighting such as smartphones, tablets, and handheld gaming consoles.

Key Features

• High Efficiency: The TPS61042DRBR is designed for maximum power conversion efficiency, which is critical for battery-powered applications where energy conservation is paramount.
• Adjustable Output Voltage: Users can adjust the output voltage up to 28V via an external resistor divider, providing flexibility for various LED configurations.
• Constant Current Output: The device delivers a precise and stable current to the LEDs, ensuring consistent brightness and improving the overall lifespan of the lighting components.
• Small Form Factor: Housed in a QFN-8 package, the TPS61042DRBR takes up minimal board space, a crucial advantage in the design of compact electronic devices.
• Integrated Power Diode: This feature simplifies the circuit design and reduces the number of external components required, leading to cost savings and a more straightforward manufacturing process.

Applications

The TPS61042DRBR is versatile and can be used in a variety of applications beyond LED backlighting. Its capabilities make it suitable for applications requiring a high-efficiency, adjustable boost converter, such as:

• Portable lighting solutions
• Low-power DC-DC conversion for small electronics
• Powering OLED displays
• Battery-powered equipment requiring a higher voltage supply

Technical Specifications

With a wide input voltage range from 1.8V to 6V, the TPS61042DRBR can accommodate various power sources. The device also features up to 1MHz switching frequency, which allows for the use of small, low-cost inductors and capacitors, further reducing the overall solution size. Built-in over-temperature protection ensures the device operates within safe temperature ranges, safeguarding your product from potential damage due to overheating.

For designers and engineers looking for a reliable and space-efficient boost converter, the Texas Instruments TPS61042DRBR presents a compelling solution that balances performance with practicality.