TPS562201DDCT Integrated Circuits (ICs)

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TPS562201DDCT is a synchronous adjustment buck converter voltage regulator for mobile, which is developed by Texas Instruments. It is of the PMIC – Voltage Regulators – DC DC Switching Regulators type.

Application field

TPS562201DDCT can suitably be applied to the scenario that requires a wide input voltage ranging from 4.5V to 18V and output voltage in the range between 0.6V and 5.5V. Examples of suitable uses of a TPS562201DDCT voltage regulator could be found in many consumer electronics, such as mobile phones, laptops, game consoles, and medical equipment. The small size of the regulator and its low operating current make it especially applicable in providing excellent power regulation for battery-operated devices.

Working principle

The components of TPS562201DDCT can be split into two main branches, which are the control loop and voltage conversion stage. The control loop includes an error amplifier, an oscillator and voltage reference. The voltage conversion stage consists of PWM controller and drivers, a high side MOSFET and a low side MOSFET.

In the control loop, the error amplifier compares an external voltage reference voltage, with the feedback voltage from the output of the voltage regulator. It produces a control voltage with others signals in the loop and the oscillator to adjust the output voltage of the voltage regulator by controlling the duty cycle of the pulse width modulation (PWM).

In the conversion stage, the PWM controller and low side and high side drivers provide necessary noise immunity and driving capacity to properly operate the high side MOSFET and low side MOSFET. The low side MOSFET is activated turning on the output of the voltage regulator to the input voltage source, while the high side MOSFET is activated to ground the output voltage. The combination of the control loop and the voltage conversion stage allow the TPS562201DDCT to adjust its output voltage based on the feedback voltage and external voltage reference.

TPS562201DDCT also provides protections from over current, over temperature, under voltage, and short circuit protections.

The combination of its wide input voltage range and its extended output voltage range make TPS562201DDCT an ideal voltage regulator for applications with stringent and dynamic power supply needs.

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