TPS70451PWPR

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TPS70451PWPR belongs to the PMIC - Voltage Regulators - Linear class of power management ICs. The device provides a precision voltage regulator to provide adjustable output voltage with a wide input range. This device allows the user to adjust the output voltage using a single digital pin.

The TPS70451PWPR can provide constant current or constant voltage regulation for low power, high efficiency applications. The device is capable of delivering up to 1A of current from the input voltage. The device can operate from a wide input voltage range of 1V to 6V and provide a regulated output voltage range of 0.8V to 5.0V.

The device features a high precision voltage monitor and integrated voltage reference, which enables accurate voltage sensing as well as safe overtemperature and overcurrent protection. The output voltage can be programmed using a programmable voltage control mode pin (VCCM). The VCCM pin can be used to set the output voltage in a range of 0.85V to 5.25V. The device provides a wide range of protection features such as over voltage, under voltage, and over current protections.

The working principle of TPS70451PWPR is based on the LM393 comparator, an internal on-off switch and an adjustable resistor network. The device has three pins which are VCC, VIN and VOUT. The VCC is the supply voltage and the VIN is the input supply voltage. The VOUT is the output voltage of the device. The voltage reference is connected to the VCC pin, and this voltage reference is compared to the voltage at the VIN pin to determine the on/off state of the internal switch. If the voltage at the VIN pin is greater than the voltage reference, the internal switch is turned on and the output voltage is driven towards the regulated voltage. If the voltage at the VIN pin is less than the voltage reference, the internal switch is turned off and the output voltage is held at the regulated voltage.

The adjustable resistor network is used to set the regulated voltage and the current limit. The voltage reference is set using a resistor, while the current limit is set using a potentiometer. The output voltage can be adjusted by changing the resistor value of the VCCM pin. This pin can be used to select the output voltage range. The device is designed to optimize the power conversion efficiency with minimal energy loss across the power stages.

The TPS70451PWPR is ideal for applications such as cell phones, cameras, tablets and other consumer electronics that require a small, low power voltage regulator. It is also suitable for applications that require an adjustable output voltage, such as industrial control, lighting controls and automotive power supply applications. The device is also suitable for battery powered applications, where the low quiescent current reduces system power consumption and extends battery life.

The TPS70451PWPR from Texas Instruments is a high precision voltage regulator IC with a wide input voltage range, adjustable output voltage and low quiescent current. The device can be used for a variety of low power and high efficiency applications, including consumer electronics, industrial control, lighting controls and automotive power supply applications.

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