Overview of Texas Instruments TPS61040DDCR

The TPS61040DDCR is a high-frequency boost converter from Texas Instruments (TI) designed to provide an efficient power management solution for battery-powered and low-power applications. This compact and versatile device is ideal for products requiring a higher voltage output from a lower voltage input source.

Key Features

• Adjustable Output Voltage: The TPS61040DDCR allows for an adjustable output voltage up to 28V, which can be set by external resistors, making it suitable for driving white LEDs, OLED displays, and other applications requiring a specific voltage level.
• High Efficiency: This boost converter operates with a typical switch efficiency of up to 95%, ensuring minimal power loss and longer battery life in portable devices.
• Low Quiescent Current: The device features a low quiescent current of typically 28µA, which is beneficial for battery-powered applications where power conservation is crucial.
• High Switching Frequency: With a 1.2MHz fixed switching frequency, the TPS61040DDCR allows for the use of small external components, reducing the overall solution size and saving board space.
• Integrated Power Diode: The device includes an integrated Schottky diode, which simplifies the design and reduces external component count.

Applications

The versatility of the TPS61040DDCR makes it suitable for a variety of applications, including:

• Portable and battery-powered equipment
• White LED backlighting for LCD displays
• Positive bias supply for OLED displays
• Low-power handheld devices

Package and Reliability

The TPS61040DDCR is offered in a small 5-pin TSOT-23 package, which is highly suitable for space-constrained applications. The device is characterized for operation over a free-air temperature range of -40°C to 85°C, ensuring reliable performance across various environmental conditions.

Conclusion

With its high efficiency, adjustable output voltage, and compact design, the TPS61040DDCR from Texas Instruments stands out as an excellent choice for designers looking to enhance the power management of their low-power and portable devices. Its high-frequency operation, integrated components, and ease of use make it a go-to solution for a wide range of applications where space and power efficiency are paramount.