Overview of Texas Instruments TPS61251DSGR

The TPS61251DSGR from Texas Instruments is a high-efficiency boost converter designed for applications requiring a higher voltage from a lower voltage supply. This versatile component is ideal for portable electronics, where extending battery life is of paramount importance. The TPS61251DSGR is particularly suited for devices powered by single-cell lithium-ion or lithium polymer batteries, which require a stable power supply even as the battery voltage diminishes over time.

Key Features

• Wide Input Voltage Range: The TPS61251DSGR operates with an input voltage range from 0.3V to 5.5V, making it suitable for low voltage applications and capable of supporting the undervoltage conditions of a battery in use.
• Adjustable Output Voltage: The output voltage can be adjusted up to 5.5V, allowing for a wide range of applications and ensuring compatibility with various devices that require different operating voltages.
• High Efficiency: With an efficiency of up to 96%, this boost converter minimizes energy loss during voltage conversion, thereby maximizing battery life and reducing heat generation.
• Small Package Size: The TPS61251DSGR comes in a compact DSG (WSON) package, which is ideal for space-constrained applications.

Applications

The TPS61251DSGR is well-suited for a variety of applications, including but not limited to:

• Portable and battery-powered devices
• Smartphones and tablets
• Wireless headsets and wearables
• Power banks
• Energy harvesting

Technical Specifications

With a 3.5A switch current limit, the TPS61251DSGR is capable of delivering high power outputs necessary for demanding applications. The device also features over-temperature and over-current protection, enhancing its reliability and safety for end-users. The converter operates at a 3.25MHz switching frequency, which allows for the use of small external components, reducing the overall solution size.

In conclusion, the TPS61251DSGR by Texas Instruments is a robust, efficient, and versatile boost converter that fulfills the power management requirements of modern portable electronics. Its high efficiency, adjustable output voltage, and compact form factor make it an excellent choice for designers looking to optimize their power supply solutions.