TLV73311PDQNT Integrated Circuits (ICs)

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TLV73311PDQNT is a single-channel, low-dropout (LDO) voltage regulator. The device is part of Texas Instruments (TI) Power Management Integrated Circuits (PMICs) family, and it is classified as linear voltage regulators. It has both a bias voltage reference and an output-current limit, offered in a tiny and thermally enhanced tiny package.

This device is suitable for a wide variety of battery operated applications, providing a wide variety of voltage outputs from 1.8V to 5.5V. For example, it can be used in digital audio players, Bluetooth headsets, computer peripherals, medical devices, tablet computing, and automotive applications.

Overview of TLV73311PDQNT

The TLV73311PDQNT is a linear voltage regulator with a wide input voltage range of 2.3V to 6V, which is designed to provide a regulated output voltage of 1.8V to 5.5V. With excellent line and load transient response, the TLV73311PDQNT can achieve steady state output voltage in less than 0. 01 milliseconds, with a maximum output current of 150mA.

The device is offered in the ultra-small LLP-8 package, which is just 22 µm thick, allowing for a wide range of applications. Furthermore, the device has high power dissipation of up to 256mW for fast transient response.

Features of TLV73311PDQNT

The TLV73311PDQNT offers various features, such as overload protection, thermal overload protection, reverse current protection and a wide operating temperature range of -40 °C to 85 °C. Also, the device has a maximum operating voltage of 5.5V, a minimum operating voltage of 2.3V, an output current of 150mA, a frequency of 300KHz, and a ripple of 14.65mVrms. Other features of the device include:

• Low power consumption of 2.7 mW at 5V
• Seamless transition to low-power mode on shutdown
• High power efficiency up to 96%
• Low shutdown current of 1 µA
• Thermal shutdown protection
• Over voltage protection

Working Principle of TLV73311PDQNT

The TLV73311PDQNT is a linear voltage regulator, which uses a single channel as an output. It uses an internal PMOS transistor as a pass element, which is connected to the voltage input and the output voltage of the regulator. The output voltage is adjusted by controlling the gate of the PMOS transistor, so that the correct output voltage can be achieved. A feedback loop is used to control the output voltage, and the voltage input is applied to the gate of the PMOS transistor.

In normal operation, the reference voltage is applied to the gate of the PMOS transistor, which turns on and adjusts the output voltage according to the reference voltage. The feedback is also taken into account in this process and the output voltage is maintained constant until the reference voltage is changed or the input voltage drops. Once the input voltage does drop, the feedback loop ensures that the output voltage stays constant, by adjusting the gate voltage of the PMOS transistor.

Conclusion

The TLV73311PDQNT is a single-channel, low-dropout (LDO) voltage regulator, and is part of Texas Instruments (TI) Power Management Integrated Circuits (PMICs) family. It offers excellent line and load transient response, a wide input voltage range of 2.3V to 6V, a wide output voltage range of 1.8V to 5.5V, and a maximum output current of 150mA. Furthermore, the device uses a single channel for output, and an internal PMOS transistor as a pass element. The output voltage is adjusted by controlling the gate of the PMOS transistor and a feedback loop is used to maintain the voltage constant until the reference voltage is changed or the input voltage drops.

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