Introducing the LM2751SDX-A from Texas Instruments

The LM2751SDX-A is a versatile and efficient switch-mode charge pump designed by Texas Instruments to provide a flexible voltage solution for a wide range of applications. This compact device is ideal for space-constrained applications and is housed in a small 10-pin WSON package, making it suitable for portable electronics where size and efficiency are critical.

Key Features

• Adjustable Output Voltage: The LM2751SDX-A offers an adjustable output voltage that ranges from -1.225V to -5.25V, which can be set using external resistors. This flexibility allows designers to tailor the output to meet the specific needs of their application.
• High Efficiency: With an efficiency of up to 90%, this charge pump minimizes power loss and heat generation, ensuring longer battery life and reliability in end products.
• Low Noise Operation: The device operates at a 1 MHz fixed-frequency, which reduces output ripple and minimizes electromagnetic interference, making it suitable for noise-sensitive applications like audio or RF circuits.
• Thermal Shutdown Protection: To ensure device and system safety, the LM2751SDX-A is equipped with thermal shutdown protection that prevents damage from overheating.

Applications

The LM2751SDX-A is a versatile component that can be used in a variety of applications, including:

• Mobile Phones and PDAs
• Portable Media Players
• Wireless and DSL Modems
• White LED Backlighting
• Negative Voltage Supplies in General Purpose Applications

Conclusion

With its high efficiency, low noise operation, and adjustable output, the LM2751SDX-A from Texas Instruments is an excellent choice for designers looking to implement a reliable negative voltage supply. Its thermal protection and small footprint make it a safe and space-saving option for the latest portable and battery-powered devices.