TPS70148PWPR

The TPS70148PWPR is a Linear Voltage Regulator which belongs to the Power Management Integrated Circuit (PMIC) family. It is a low-noise, high-efficiency regulator developed for use in applications with low-emission noise requirements. It has a wide range of working voltages and current outputs and has been designed for use as a low-voltage supply for mobile devices, such as smartphones and tablets. The TPS70148PWPR is a low-noise, high-efficiency two-phase linear voltage regulator that provides accurate voltage regulation over a wide range of input voltages and output current.

Features

The main features of the TPS70148PWPR are:

• Wide input voltage range: 2.5V-20V
• Low output noise: <7mV (RMS)
• High-efficiency: up to 94%
• 2-phase operation with \'buried Zener\' topology
• Protected against short-circuit and overload
• Soft-start and current limitation

Applications

The TPS70148PWPR is suitable for a wide range of applications which require a low-noise, high-efficiency voltage regulator. These applications include the following:

• Smartphones and tablets
• Wearable electronics
• Internet of Things (IoT) devices
• Battery-powered gadgets and equipment
• Office and consumer electronics

Working Principle

The TPS70148PWPR is a low-noise, high-efficiency linear voltage regulator which uses a two-phase (or “buried Zener”) topology. The two-phase topology is a method of regulation which converts a high input voltage into a low output voltage more efficiently than a single-phase regulator. This is achieved by using two regulated power stages, each providing half the output current. The stages use a combination of power switches and Zener diodes to control the output voltage and deliver efficient operation with minimal noise.

Each power stage in the TPS70148PWPR is made up of two N-channel MOSFETs, two Schottky diodes and two Zener diodes. The two power stages operate in opposite phases, alternating the current flow and providing current to the load at all times. The MOSFETs switch the current on and off in order to control the output voltage and the Zener diodes are used to control the overall voltage regulation. The Schottky diodes provide low voltage drop during operation and also limit the inrush current during switching.

Conclusion

The TPS70148PWPR is a low-noise, high-efficiency linear voltage regulator which belongs to the PMIC family. It is suitable for applications which require a low-noise, high-efficiency voltage regulator, such as smartphones and tablets, wearable electronics, Internet of Things (IoT) devices, and battery-powered gadgets and equipment. The TPS70148PWPR is a two-phase regulator which uses a combination of power switches and Zener diodes to regulate the output voltage and achieve efficient operation with minimal noise.