TPS77625PWP

The TPS77625PWP is a low-quiescent-current voltage regulator that can meet a variety of power applications, including providing supply for wireless communication circuitry and providing power for a microcontroller. In addition, it also provides digital control, low-noise power supply and ultra-low quiescent current for its digital functions. This low-power voltage regulator is a good choice for mobile devices, microprocessor-powered systems, and battery-driven applications.

Features

The TPS77625PWP features great performance, it integrates high-efficiency low-dropout (LDO) regulator and low-power buck regulator into a compact 3mm x 3mm package. This voltage regulator can regulate voltage of up to 8V and its ultra-low quiescent current (<1 uA) makes it similar to a current-limited device, which it combines with reduced area and round-off errors. It also offers four different safety and power options, which include Shutdown/Enable, OV/UV, Over Temperature and Over Current/Short Circuit protectio. Moreover, the regulator is capable of working at an input voltage range of 1.8V to 10V and provide a super low-dropout of 0.3V at 1 mA, allowing very efficient and low-noise power supplies.

Application

• Wireless Communication Applications such as Wi-Fi, LTE, etc.
• Portable Equipment such as Smart Phones, Tablets, Cameras, Wearable Technology
• Industrial Automation and Machine-to-Machine (M2M) Applications
• Bill Payment and Other Automated Payment Systems

Working Principle

The TPS77625PWP operates by integrating a linear Technology LDO regulator and a low-power buck regulator into a single package. The LDO regulator is designed to provide a regulated output voltage with no additional circuitry required. It takes the input voltage and regulates it to a certain voltage level, usually 3.3V or 5V. The buck regulator, on the other hand, is designed to provide a more efficient regulated voltage from a higher voltage input. It operates by using a power switch, an inductor, and a capacitor. The power switch continuously controls the supply and discharge of the inductor to regulate the output voltage in a power-conversion process.

The TPS77625PWP can provide a digital control for its various functions. It integrates a digital control interface which supports Serial Peripheral Interface (SPI), I2 C, and other common bus protocols. This digital control interface can provide accurate communication data in both directions, allowing the user to monitor, program, and control the device, while preserving power by setting the device to one of several low-power power-saving modes when not in use.

Conclusion

The TPS77625PWP is a low-quiescent-current voltage regulator suitable for a variety of power applications including mobile devices, microprocessor-powered systems, and battery-driven applications. Its features include high-efficiency low-dropout (LDO) regulator and low-power buck regulator in a compact 3mm x3mm package, as well as four different safety and power options, and a digital control interface for SPI, I2C and other common bus protocols. It provides an efficient and low-noise power supply and its ultra-low quiescent current (<1 uA) makes it an attractive choice for applications requiring ultra-low-power and digital control.