TPS71913-28DRVTG4

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TPS71913-28DRVTG4 is a low-cost, low dropout, low quiescent current linear regulator from Texas Instruments. It helps to supply integrated circuits and other digital load on motherboards and system board. Designers can take advantage of this device to provide voltage from 1.5V to 5.5V with a load current of up to 500mA. The device can maintain efficiency even with large transient output loads and is designed for both switching and linear mode applications.

The TPS71913-28DRVTG4 linear regulator features an extremely low quiescent current of just 12 uA, a large input voltage range of 2.0V to 5.5V and a low operational voltage range as low as 1.3V. The TPS71913-28DRVTG4 includes an internal current limit and thermal shutdown protection to prevent device failure from excessive load currents or temperature. The device also offers a fixed on/off delay of 10 ms for start/stop time control, making it especially well suited for battery-powered applications.

Application Field of TPS71913-28DRVTG4

TPS71913-28DRVTG4 is often used in low power applications such as embedded systems and cell phones. As the linear regulator can function at low input voltage and current, the TPS71913-28DRVTG4 can also be used in handheld computing applications, such as PDAs or digital music players. It is also used in automotive and industrial applications where the main input variable is temperature.

In addition, the device is suitable for a variety of other linear applications where high efficiency, low power consumption and cost are required. In particular, it is well suited for providing bias voltage to logic ICs and communications ICs.

Working Principle of TPS71913-28DRVTG4

The working principle of the TPS71913-28DRVTG4 is based on the fact that, when the input voltage is applied to the device, the internal transistor will enter in the linear region. This will result in current flowing from the output and the load being regulated. To control the output voltage, a feedback loop is used. This feedback drives the internal transistor, so the output voltage is kept constant.

The TPS71913-28DRVTG4 uses an internal resistance divider to sense the output voltage, and then compares it with a reference voltage. If the output voltage is lower than the reference voltage, then the feedback signal will increase the current flowing through the internal transistor and consequently, the output voltage. If the output voltage is higher than the reference voltage, then the feedback signal will decrease the current flowing through the internal transistor and consequently, the output voltage.

TPS71913-28DRVTG4 has a wide range of thermal and current protection, which makes it a reliable and cost effective solution for many linear applications. The device is designed for a minimum life time of 10 years, meaning that it can deliver reliable performance even when subject to extreme environmental conditions such as freezing cold or boiling hot temperatures.

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