TPS61132RSAR Integrated Circuits (ICs)

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In this article, we are going to focus on the application field and working principle of the TPS61132RSAR, which is a PMIC (Power Management Integrated Circuit) member of the Voltage Regulator family, and more precisely, of the Linear + Switching Voltage Regulation category.

The TPS61132RSAR is especially designed to reduce overall system power consumption and heating issues by improving the power efficiency of mobile devices, such as phones, tablets and notebooks; however, due to its broad performance range and the innovative technology used, it can be adapted to a great variety of other applications.

The TPS61132RSAR is a synchronous efficient, step-down DC/DC converter that is regulated by a Constant-On-Time (COT) control scheme. It uses fast-mode transient response for better load-transient performance. The IC is entirely protected against short-circuits, under-voltage, over-voltage and over-voltage series. It also includes low-fault protection and hiccup mode with automatic recovery.

The TPS61132RSAR boasts a great degree of output voltage regulation precision. Its external resistors permit adjusting the reference voltage with an accuracy between couple of hundreds of mV. The chip usually works with a switching frequency ranging from 500KHz to 1.6 MHz; the Slew Rate Control (SRC) selects and regulates the clock frequency, according to the current application and load conditions.

Additionally, the TPS61132RSAR provides versatile power options. An internal LDO (Low Dropout Regulator) supplies sufficient voltage to the rest of components and the external P-Channel MOSFET optimizing the efficiency and minimizing the power losses. However, some applications would be better attended by an external P-Channel MOSFET. Also, there is an option of using two voltage sources instead of one, making it possible to achieve high output current with low voltage drops, so the efficiency is improved in 1.3V to 5V conversion.

To sum up, the TPS61132RSAR is a high-performance, versatile and reliable DC/DC converter with unbeatable power efficiency. Its fast transient response and great accuracy make it perfect for applications requiring higher than usual input voltages to be regulated, as well as for applications that are particularly sensitive to power fluctuations, such as portable devices, toys and instrumentation.

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