Overview of Texas Instruments LM27762DSST

The Texas Instruments LM27762DSST is a high-performance, low-noise regulated charge pump DC-DC converter designed to meet the needs of noise-sensitive applications. This compact and efficient component is well-suited for powering devices that require a positive and negative voltage rail, making it an ideal choice for applications such as operational amplifiers, data converters, and audio circuits.

Key Features

• Low Noise Performance: The LM27762DSST features a low-noise charge pump technology that minimizes output voltage ripple, making it perfect for precision analog circuits.
• Dual Output: It provides both a positive and a negative regulated voltage, which is essential for applications that need a split rail power supply.
• Adjustable Output: The output voltages can be adjusted using external resistors, giving designers the flexibility to tailor the power supply to their specific requirements.
• High Efficiency: With an efficiency up to 99%, this charge pump converter ensures minimal power loss and heat generation, extending battery life in portable applications.
• Small Form Factor: The device is offered in a compact WSON package, making it suitable for space-constrained applications.

Applications

• Portable and battery-powered equipment
• Operational amplifier power supplies
• Data acquisition systems
• Audio applications
• Industrial control systems

Technical Specifications

The LM27762DSST operates over a wide input voltage range of 2.7V to 5.5V and can deliver adjustable output voltages from ±1.5V to ±5V. The device also features a low shutdown current of less than 1µA, contributing to the overall power efficiency of the system it powers. It has built-in over-temperature and short-circuit protection, ensuring reliable operation under various conditions.

With its combination of low noise performance, adjustable dual outputs, and high efficiency, the Texas Instruments LM27762DSST is an excellent choice for designers looking to optimize their power supply solutions in noise-sensitive and space-constrained applications.