The TPS61043DRBRG4 is a high-frequency, high-efficiency boost converter integrated circuit (IC) developed by Texas Instruments, designed to operate as a single white LED driver for portable devices. This IC is a member of a family of devices that are specifically engineered to drive light sources efficiently and with high precision.

Key Features

• Input Voltage Range: The TPS61043DRBRG4 operates with an input voltage range of 1.8V to 6V, making it suitable for battery-powered applications, including those powered by single-cell Li-Ion batteries or multiple alkaline/NiMH cells.
• Adjustable Output Voltage: It can provide an adjustable output voltage up to 28V, which can be set using external resistors. This flexibility allows it to drive multiple LED configurations.
• High Efficiency: With a typical switch frequency of 1MHz, the device allows for the use of small, low-profile inductors and capacitors, resulting in a compact power supply solution with high power conversion efficiency.
• Integrated Power Switch: It includes a 40V, 400mA switch FET, which contributes to the high efficiency and reduces external component count.
• Protection Features: The IC incorporates built-in protection features such as over-temperature protection and over-voltage protection, ensuring reliable operation under various conditions.
• Dimming Capability: The TPS61043DRBRG4 supports both analog and pulse-width modulation (PWM) dimming control methods, providing designers with flexibility in controlling the brightness of the LED.

Applications

Due to its versatile features, the TPS61043DRBRG4 is ideal for driving white LEDs in a range of portable applications, such as:

• Smartphones and tablets
• Digital cameras and video cameras
• Portable media players
• Handheld gaming devices
• Personal digital assistants (PDAs)

Package and Quality

The TPS61043DRBRG4 is offered in a small, 8-pin SON package, which is optimized for space-constrained applications. Texas Instruments' commitment to quality ensures that this product meets the highest standards for performance and reliability.