TPS61122PWR

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Power management integrated circuits, or PMICs for short, are vital components in almost every modern electronic device. As their name implies, PMICs are responsible for managing the power levels and distribution of electronic devices. Of all the different kinds of PMICs out there, specialized models are among the most advanced and complex. The TPS61122PWR is a perfect example of such a PMIC, and it offers various features and advantages to users like power regulation and protection. This article will go over the application field and working principles of the TPS61122PWR.

The TPS61122PWR is a Low QoS (quality-of-service) synchronous buck converter, which can be used to step down an input voltage of 5.5V to 3.3V or 1.2V with high efficiency. The device is designed to help power FPGAs (field-programmable gate arrays), ASICs (application-specific integrated circuits) or SoC (system-on-chip) systems. The TPS61122PWR is also suitable for powering core logic, DDR memory, and other components that require low voltage and current. Furthermore, the TPS61122PWR offers both over-current protection (OCP) and over-voltage protection (OVP) to ensure a safe and stable operating environment.

In terms of its working principle, the TPS61122PWR functions in a very similar manner to other power controllers. In order to achieve the desired step-down, a pulse-width modulation (PWM) signal is used to control the main switch via an error amplifier. The main switch then works to regulate the output voltage, while an OCP and OVP circuit monitors the current draw and makes adjustments to the PWM accordingly. Depending on the system requirements, the TPS61122PWR can be set to either forced continuous conduction mode (CCM) or discontinuous conduction mode (DCM).

The TPS61122PWR also features various other features to improve its overall performance. One of these features is its low quiescent current, which is the amount of current required for the device to remain in an idle state. This feature ensures that the TPS61122PWR consumes very little power when not in use, making it an ideal choice for applications where energy efficiency is a concern. The device also offers a power-good output signal so that the system can quickly detect changes in system voltage and make the necessary adjustments.

The TPS61122PWR is a fairly recent PMIC and offers many advantages to users. Its ability to provide low voltage and current precisely makes it suitable for powering both FPGAs and SoC systems. The device also offers protection against both over-voltage and over-current, along with a power-good signal to quickly detect sudden changes in the system. Finally, the TPS61122PWR’s low quiescent current makes it an ideal choice for applications where energy efficiency is a concern.

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