TPS61120PWR

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Power management chips are essential components in modern integrated circuit designs. They help manage the current and voltage requirements of the device, as well as protect it from damage and errors. The TPS61120PWR is an example of a specialized power management integrated circuit (PMIC) designed for applications such as multi-rail power supplies, DC-DC converters, and load switch systems. This article will discuss the features and working principle of the TPS61120PWR, as well as its application field.

Features

The TPS61120PWR is a 9.3V-35V, 3A PMIC chip with integrated smart power stage (SPS) technology and flexible power stage control. Its integrated SPS technology consists of a boost converter, high and low-side drivers, and internal protection circuitry. The TPS61120PWR also includes a variety of protection features, such as over-current protection (OCP) and adjustable over-current limit (OCL). Additionally, it features an adjustable voltage monitor (VMON), which can be used to monitor load and input voltages to ensure the system is operating within acceptable parameters.

Other features of the TPS61120PWR include wide voltage monitoring, small size and low power consumption, input filter, and short circuit protection. The TPS61120PWR also offers a wide operating temperature range of -40°C to +125°C, making it suitable for various environments.

Working Principle

The TPS61120PWR utilizes a patented topology to provide highly efficient and power delivery to the load. Its integrated SPS technology allows it to operate as a boost converter and drive two MOSFETs in either a high-side or low-side configuration. The TPS61120PWR also includes integrated control circuitry to enable a variety of protection features, such as OCP and OCL. Additionally, the TPS61120PWR includes an adjustable VMON to monitor input and load voltages and ensure they remain within acceptable ranges.

The TPS61120PWR’s adjustable VMON provides different operation modes, such as “forced-pwm” and “PWM-with-auto-restart”. The former mode enables the TPS61120PWR to operate at a constant frequency and the latter allows the TPS61120PWR to monitor its load and input voltages and respond accordingly. The TPS61120PWR also includes an adjustable soft-start feature, which allows it to smoothly transition to normal operation without sudden surges in current. Additionally, the chip can operate in a low-power shutdown mode to reduce its power consumption when not in use.

Application Field

The TPS61120PWR is designed primarily for DC-DC converter, multi-rail power supplies and load switch systems. Its integrated SPS technology and wide range of features make it a suitable choice for applications in the industrial, healthcare and energy markets. It is capable of operating as a synchronous boost converter with adjustable current limit and soft-start features. The TPS61120PWR is also optimized for applications requiring high efficiency, such as renewable energy products and hand-held medical devices. Additionally, its wide operating temperature range makes it a suitable choice for outdoor systems, such as smart meters.

The TPS61120PWR is a highly-integrated PMIC chip with powerful features and a wide range of applications. Its integrated SPS technology and comprehensive protection features enable it to provide robust protection and efficient power delivery to the load. The TPS61120PWR is a suitable choice for DC-DC converter, multi-rail power supplies and load switch systems, as well as many other industrial, healthcare and energy applications.

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