TPS79650DCQ

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TPS79650DCQ is a linear type of Voltage Regulator, placed under Power Management Integrated Circuit (PMIC). It is useful for low output voltage applications in different kinds of power sources. Its integrated features and functionalities allow it to provide regulated steady state output voltage with excellent ripple rejection ratios. This Linear Voltage Regulator is suitable for various power supply applications, such as embedded systems, FPGA, microcontroller, customer specific ICs and analog ICs.

TPS79650DCQ is integrated with an adjustable Output Voltage Regulator with good ripple rejection features and an internal Error Amplifier. It also has an integrated Common Mode Feedback VREF, temperature and current sensing. The linear regulator allows load sharing and base load current sharing between multiple power supply sources. It supports both Positive and Negative Voltage Regulators for automated load balancing. Other features include a 2mA I/O Protection, 10mA REF Overload Protection and 5mA Current Limit.

The working principle and application of the TPS79650DCQ linear voltage regulator depends on the circuit design application and arrangement. For instance, for Power On Reset (POR) applications, the circuit input is connected to the 8V supply from the battery. The output is connected to the Pin 3 of the regulator and the ground of the source to the regulator is connected to the GND pin of the chip. Now the VREF pin of the TPS79650DCQ is placed in the feedback loop and connected to the VOUT (Pin 3). This is done to give a feedback of the output voltage of the regulator to the input. Regulation of the output voltage is ensured by the VREF pin.

For manual reset applications, the 8V supply is connected to pin 1 of the regulator while the ground is connected to the Pin 2. The output voltage is again connected to the Pin 3 of the regulator. The VREF pin is placed in the feedback loop and connected to the VOUT pin and again, the output voltage is maintained by the VREF, giving the feedback of the regulated output voltage.

TPS79650DCQ is also used in low drop out (LDO) voltage regulated designs. The VREF is used to give a feedback of input voltage to the regulator. The input voltage of the regulator is connected to the 8V supply from the battery and the ground is connected to the GND Pin of the regulator. Likewise, the output voltage is also connected to the Pin 3 and the VREF is connected to the VOUT of the regulator. Here too the output voltage is regulated by the VREF.

TPS79650DCQ also has many other applications, such as power management applications, power path applications and power supply applications. In these applications, the chip provides an adjustable output voltage with good ripple rejection features. These features enable the circuit to maintain high precision output voltage with minimal ripple voltage. In power path applications, the chip is configured to provide dual mode power supply operation, wherein, it is able to detect the type of supply connected and decides whether to operate as a linear or a buck regulator.

TPS79650DCQ is integrated with a POR pin and a PWREN pin, which enable the chip to shut down when the VInput drops below its regulated level. This allows the regulator to protect the device from unstable voltage. The chip also supports ON/OFF switch controls for turning the power on or off, a great feature for saving energy. In addition, it is also configured to support an over temperature protection, providing a protection to the connected devices from burning up.

In conclusion, the TPS79650DCQ is a linear type of Voltage Regulator, which can be used in various power sources with excellent ripple rejection features. Its integrated VREF and Error Amplifier, common mode feedback, POR, current and temperature sensing, overload protection and over temperature protection features provide a high precision, energy saving and stable output voltage. This makes it a great choice of Voltage Regulator for a variety of power management integrated circuit applications.

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