TPS62080DSGR Integrated Circuits (ICs)

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TPS62080DSGR is a DC-DC power conversion switch regulator designed to provide independent power supply for mobile devices. It is an integrated single inductor buck converter which operates from an input voltage supply of 3.2V to 18V, providing an adjustable output voltage from 0.7V to 4.3V. The device is designed to provide high efficiency over a wide range of operating conditions with maximum output current up to 2A. The TPS62080DSGR was developed by Texas Instruments for mobile devices, where space is limited. It reduces the number of components needed compared with discrete solutions, thus reducing cost and size. The device also includes many safety features, such as over current protection, over temperature protection and soft-start function, which limit the possibility of damage. The TPS62080DSGR contains a voltage feedback, voltage error amplifier, a current compensation network and a high-side P-channel MOSFET switch. It is also integrated with a boost diode, a low-side N-channel MOSFET switch, an internal clock and a current-sense amplifier. The device combines both the control circuit and power switches on a single integrated circuit (IC).

The TPS62080DSGR uses the successive approximation register (SAR) control algorithm to accurately regulate the output voltage by comparing the feedback voltage with the voltage reference. The internal clock, which is generated from the oscillator, allows the SAR conversion cycle to follow the input voltage and the load changes accurately. The SAR control circuit allows for the control of the switching frequency based on the apparent input voltage on the device.

The TPS62080DSGR buck converter has an enable function to allow for full shutdown when the device is not in use. The output of the "EN" pin is regulated by the input voltage, as well as the feedback voltage setting. When the feedback voltage is lower than the enable voltage or input voltage is lower than the enable voltage, the output of the "EN" pin will be forced low, shutting down the converter.

The TPS62080DSGR works in the pulse width modulation (PWM) mode by means of a single switching cycle. In one switching cycle, the high-side MOSFET switch will start to switch on and off at certain intervals, while the low-side MOSFET switch will operate in the linear mode. The inductor and capacitor are responsible for generating an output voltage suitable for the device. The current sense amplifier will sense the current flowing into the device, ensuring that the current does not exceed the device\'s current-sense limit. Finally, the voltage error amplifier will compare the voltage feedback and compare it to the input voltage, regulating it. The TPS62080DSGR is primarily used to power mobile devices. It is used to drive memories, microcontrollers, digital signal processors (DSPs), system-on-chips (SoCs), lithium ion batteries and more. By using an external control loop, the device can be used to provide a regulated voltage at changing input voltage and load conditions. It is also integrated with safety features, such as overcurrent protection and over temperature protection, to prevent any damage to the device.

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