TPS77601PWPR

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TPS77601PWPR is a linear voltage regulator that is designed to provide a high quality power supply solution for applications with a limited power source, such as efficiency and space saving in battery-operated, portable devices. It is widely used in various embedded and industrial systems, such as medical devices, wearables, factory automation, etc. This article will further discuss the application fields and working principle of the TPS77601PWPR.

Application Fields

The TPS77601PWPR belongs to Texas Instruments\' ultra-low power voltage regulators, which is a highly efficient DC-DC converter designed to meet portable low power applications and compliant with TinyLogic industry standards. It is built with a single-cell Li-Ion battery input and provides dual, precision-adjustable outputs. The device offers current-limited, short-circuit protection, thermal shutdown, and reverse and under-voltage protection for safety. It also includes two open-drain power-good signals for indicating the output power status.

The TPS77601PWPR is available in the SOT-23 and SC-70 packages, making it lightweight and suitable for small form factor applications with a size of 2.9 mm x 1.6 mm and 1.2 mm x 1.2 mm respectively. It provides up to 1.5 A total output capacity and supports an ultra-wide input voltage range from 1.8 V to 5.5 V. In addition, the device is rated for operation over the entire industrial temperature range of -40°C to +125°C, making it suitable for various environmental applications.

The advantages of the TPS77601PWPR include its small size, low power consumption, high efficiency, wide input voltage range, high temperature range, and wide output current selection. These features make it suitable for various applications in embedded and industrial systems, such as medical devices, wearable electronics, factory automation, internet of things, etc.

Working Principle

The TPS77601PWPR is a linear voltage regulator with an input voltage range from 1.8 V to 5.5 V, and output current range from 0 A to 1.5 A. The device achieves an ultra-wide input voltage range with a low quiescent current of only 30 μA. It operates with a maximum efficiency of up to 93% and is capable of delivering up to 1.5 A of continuous output current.

The TPS77601PWPR is a highly efficient, fully-integrated linear voltage regulator. It uses a power-management integrated circuit (PMIC) with a separate control IC to control the regulator output voltage. The control IC features a PWM (pulse-width modulation) control scheme that allows the device to operate at low input voltage. The PMIC uses several current-limiting techniques to protect the device from excessive current or load conditions. The device also features a reverse-voltage protection (RLock) circuit that prevents reverse current flow when the load is removed.

The TPS77601PWPR voltage regulator features a wide range of features to ensure reliable and continuous operation, including a power-good signal, thermal overload protection, and output voltage trim. The power-good signal provides an indication of the output voltage status, and the thermal overload protection circuit helps to prevent the device from over-temperature damage. The output voltage trim feature allows for the output voltage to be adjusted for optimized performance over temperature, ensuring that the device can maintain its regulated output voltage over the full ambient temperature range.

Conclusion

The TPS77601PWPR is a highly efficient and low power linear voltage regulator from Texas Instruments. It is well-suited for embedded and industrial applications due to its wide input voltage range, high efficiency, low quiescent current, and wide output current selection. The device is available in SOT-23 and SC-70 packages, making it an ideal choice for space-sensitive applications. It also offers several safety features, such as current-limited short-circuit protection, reverse and under-voltage protection, thermal shutdown, open-drain power-good signal, and output voltage trim.

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