TPS73HD301PWP

Current - Output:	750mA
Base Part Number:	TPS73HD301
Supplier Device Package:	28-HTSSOP
Package / Case:	28-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable, Reset
PSRR:	51dB ~ 49dB (120Hz)
Current - Supply (Max):	550µA
Current - Quiescent (Iq):	415µA
Series:	--
Voltage Dropout (Max):	-, 0.8V @ 750mA
Voltage - Output (Max):	9.7V
Voltage - Output (Min/Fixed):	1.2V, 3.3V
Voltage - Input (Max):	10V
Number of Regulators:	2
Output Type:	Adjustable (Fixed)
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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The TPS73HD301PWP voltage regulator is a linear voltage regulator - a type of power management integrated circuit (PMIC) - that provides a fixed higher voltage compared to the input voltage. It is used for power management and voltage regulation in various applications. This article will look at the application field and working principle of the TPS73HD301PWP.

Application

The TPS73HD301PWP is used in designs that require a very low dropout voltage and requires very low quiescent current. It is suitable for microprocessors, microcontrollers, digital signal processors, voltage sensitive circuit supplies and other systems that require low voltages. The output voltage range is from 0.8 V to 5.5 V and it can supply a maximum current of 500 mA. With its low dropout voltage, it can provide a stable line voltage even with very low input voltage.

Working Principle

The working principle of the TPS73HD301PWP involves an internal transistor that controls the voltage output according to the voltage input. This transistor is part of a voltage regulating circuit that keeps the voltage at the output pin constant, even when the input voltage changes. To achieve this, the transistor will vary its power output in order to adjust the output voltage. This is done by the controller continuously monitoring the voltage output and adjusting the voltage input. The voltage regulating circuit works in linear mode, meaning the output voltage will vary in a linear fashion according to the input voltage.

Features

The TPS73HD301PWP has some noteworthy features. It is designed with low quiescent current consumption and low dropout voltage. The quiescent current is only 5uA, meaning it does not consume much power in standby mode. The dropout voltage is 0.4 V, allowing it to operate even with very low input voltages. The TPS73HD301PWP also features internal over-temperature protection. This means that it will shut down if the temperature of the device exceeds a certain limit, preventing it from overheating.

Conclusion

The TPS73HD301PWP is a linear voltage regulator. It is used for the power management and voltage regulation of microprocessors, microcontrollers, digital signal processors, and other systems that require low voltages. The TPS73HD301PWP is designed with low quiescent current consumption and low dropout voltage, making it suitable for applications where energy efficiency is key. In addition, it has an over-temperature protection feature for added safety.

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