TPS62202DBVTG4

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TPS62202DBVTG4 is a synchronous triple-output low-Iq linear regulator in a 32-pin HVQFN package that combines a 500 mA and a 300 mA linear regulator with two 50 mA, 200 mA, 300 mA and 500 mA, synchronous step-down buck converters. It is composed of highly integrated components including a N-Channel MOSFET, voltage reference and other components allowing for a compact design. The TPS62202DBVTG4 has a precision enable pin for enable/disable the device without the need of an external pull-up resistor saving power.

The TPS62202DBVTG4 is designed to provide good line and load regulation over a wide input voltage range. It provides ultra-low quiescent current of 22uA enabling extended battery life, and it can provide up to 1A of output current and is capable of operating over a wide input voltage range of 2.5V to 5.5V. It also provides programmable slew rates that can be adjusted to reduce EMI.

The TPS62202DBVTG4 is pin-programmable for the output voltage allowing for a wide range of application possibilities. It also supports various inductor designs and enables the designer to adjust the inductor current limit value and reduce cost by utilizing the minimum required inductor current.

The TPS62202DBVTG4 is well-suited for applications such as portable devices, gaming machines and industrial systems. The integrated components and outstanding power saving performance make this an ideal solution for these kinds of applications.

Application Field

The TPS62202DBVTG4 is typically used in a wide range of portable and industrial applications, such as notebook and tablet PCs, gaming machines, industrial systems, automotive systems and embedded systems. It is designed to supply power to the core processor and other circuits, such as peripheral components, memory and alterative power sources.

The TPS62202DBVTG4 can also be used in USB-C devices, providing the full USB-C power delivery protocol and support of USB 2.0, USB 3.1 and PCIe Gen 2.0/3.0/3.2 systems. Furthermore, the TPS62202DBVTG4 can provide an adjustable output voltage from 0.9V to 5V and a total output current of 1A. The TPS62202DBVTG4 is also compatible with various inductor designs allowing for optimal system designs with various current sharing configurations.

Working Principle

The TPS62202DBVTG4 operates on the principle of synchronous buck converter topology. It consists of two power stages- a high-side power MOSFET and a low-side synchronous MOSFET. The two MOSFETs operate in synchronism to achieve higher efficiency.

In normal operation, the high-side power MOSFET is turned on and the low-side synchronous MOSFET is off. This allows the applied voltage to pass through the high-side MOSFET, supplying power to the load. During this time, the high-side MOSFET draws a small amount of gate current and supplies power to the output.

When the output voltage begins reaching the desired voltage level, the low-side MOSFET is switched on simultaneously with the high-side MOSFET, thus providing a path for output current to return to the input voltage. At the same time, the inductor current decreases and the regulator sets a new output voltage level.

The TPS62202DBVTG4 also features a wide operating temperature range of -40°C to +125°C, allowing it to be used in a wide variety of applications. It also features a built-in 500nA logic output gate driver which can be used to drive external high and low-side FETs to further enhance efficiency.

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