TPS5300DAPR

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The TPS5300DAPR is a high-performance linear and switching voltage regulator from Texas Instruments. It provides adjustable output voltage from 0.8 V down to 0.7005 V, with a single phase load line with input range of 4 V to 5.5 V. It features automatic thermal shutdown protection and is designed for power level operation up to 200 mA. The device is RoHS compliant and is suitable for many applications in the industrial and automotive markets, including medical equipment, LED lighting, and power supplies.

Applications

The TPS5300DAPR is a versatile device that can be used in a variety of applications, including:

• DC-DC buck, boost and buck-boost conversions
• Adjustable output regulation, providing accurate (+/- 0.005%) voltage control
• Low power and voltage sense applications
• Resonant DCM, PSR, PFM and PWM power converters
• High-efficiency LED drivers with both I/O settings

Features

The TPS5300DAPR offers a number of features that make it suitable for a variety of applications, including:

• Wide input range of 4 V to 5.5 V
• Integrated current limit protection
• Low NOISE standby mode option
• Direct control of output voltage with no external components
• Adjustable switching frequency up to 1.2 MHz
• Programmable over-current limit
• High switching efficiency
• Protection against short-circuits, over-voltage, over-temperature, under-voltage and output current conditions

Working Principle

The TPS5300DAPR is based on a linear and switching voltage regulator design. It uses an internal linear voltage regulator, along with an external power MOSFET, to provide a high accuracy and low dropout performance. On the output side, its primary feature is the ability to sense the output voltage and adjust its output accordingly for programmable voltage regulation. This is accomplished by using a diode baseband control signal, which is used to control the switching transistor. It also features a unique over-current limit control, which is used to prevent the output voltage from exceeding a certain level and reduces current consumption when the over-current limit is exceeded.

On the input side, the TPS5300DAPR is designed to accept input voltages of between 4 V and 5.5 V, and can be used with both single-phase and multi-phase input power sources. It features a wide input dynamic range, and its output voltage is adjustable from 0.8 V down to 0.7005 V, with a single-phase current load line. Additionally, the device features a low noise standby mode, programmable over-current limit, and protection against short-circuits, over-voltage, over-temperature, under-voltage and output current conditions.

Conclusion

The TPS5300DAPR is a versatile and efficient linear and switching voltage regulator, suitable for a variety of applications in the industrial and automotive markets. Its wide input range and adjustable output voltage makes it suitable for many DC-DC buck, boost and buck-boost conversions, as well as low power and voltage sense applications. Additionally, it features a wide range of protection functions, adjustable switching frequency up to 1.2 MHz, integrated current limit protection and low noise standby mode option.

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