Texas Instruments

TL7660IDR

TL7660IDR Description

The TL7660IDR from Texas Instruments is a charge pump voltage inverter IC designed to generate a negative output voltage from a positive input supply. Housed in an 8-SOIC package with tape-and-reel (TR) packaging, it operates over a wide input voltage range of 1.5V to 10V, making it versatile for various low-power applications. This fixed-output, ratiometric charge pump delivers efficient voltage inversion with a switching frequency of 10kHz, eliminating the need for an external inductor. Its single-output configuration supports both positive and negative voltage conversion, simplifying circuit design while maintaining compactness.

TL7660IDR Features

• Wide Input Range (1.5V–10V): Compatible with low-voltage and standard power supplies.
• Inductorless Design: Charge pump topology reduces board space and cost.
• Ratiometric Operation: Output voltage tracks input, ensuring consistent performance.
• Low Power Consumption: Ideal for battery-operated and portable devices.
• Synchronous Rectifier-Free: Simplifies design while maintaining efficiency.
• Robust Packaging: 8-SOIC with MSL 1 (Unlimited) moisture sensitivity, suitable for automated assembly.
• Compliance: ROHS3 and REACH compliant, meeting environmental standards.

TL7660IDR Applications

• Negative Bias Generation: Used in op-amp circuits, data converters, and sensors requiring dual supplies.
• Portable Electronics: Powers LCD displays, audio amplifiers, and handheld instruments.
• Signal Conditioning: Provides inverted voltages for industrial control systems and instrumentation.
• Low-Noise Systems: Suitable for medical devices and precision analog circuits due to minimal EMI.
• Space-Constrained Designs: Ideal for IoT modules and wearables where inductorless solutions are preferred.

Conclusion of TL7660IDR

The TL7660IDR stands out as a reliable, compact, and efficient solution for voltage inversion in low-power applications. Its wide input range, ratiometric operation, and inductorless topology make it superior to traditional switched-inductor regulators in space-sensitive designs. With TI’s proven quality and compliance with industry standards, this IC is a top choice for engineers developing portable, industrial, and precision analog systems. Its versatility and ease of integration ensure optimal performance across diverse use cases.