TPS70345PWPR

Current - Output:	1A, 2A
Base Part Number:	TPS70345
Supplier Device Package:	24-HTSSOP
Package / Case:	24-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, Under Voltage Lockout (UVLO)
Control Features:	Enable, Power Good, Reset, Sequencing
PSRR:	--
Current - Quiescent (Iq):	250µA
Series:	--
Voltage Dropout (Max):	0.26V @ 1A, -
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	3.3V, 1.2V
Voltage - Input (Max):	6V
Number of Regulators:	2
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction TPS70345PWPR is a low-voltage linear regulator from Texas Instruments. It is part of the company\'s family of Power Management Integrated Circuit (PMIC) solutions. This product is a great choice for applications needing small form factor, low power system with excellent thermal characteristics. It is suitable for a variety of applications, including consumer electronics and industrial control. Furthermore, it has a wide input voltage range from 2.7V to 18V that makes it more appealing to a wider range of application. Application Field Having a wide input voltage range, TPS70345PWPR is ideal for various portable applications, such as industrial control and consumer electronics. It can maintain a stable output voltage regardless of source voltage fluctuations. Its low dropout voltage means it can also convert high voltage inputs into a moderate voltage output. In consumer electronics, TPS70345PWPR is suitable for battery-powered applications, where reliable current and low-power consumption are in need. Examples include portable media players, scanners, digital cameras, and many other small consumer electronics products. As part of industrial control applications, TPS70345PWPR offers superior power conversion and reliability. From more complex and large-scale industrial systems to portable solutions, this linear regulator provides solutions for applications requiring current regulation and small form factor. Working Principle TSP70345PWPR works by reducing a source voltage to a comfortable level, typically 5V or 3.3V, while maintaining current regulation. It is a low-dropout linear regulator, meaning that even though the input voltage may be higher than the output voltage, the regulator won\'t shut off as long as the input voltage is within the specified operating range. The device is essentially a series of three transistors connected in a particular way. One of the transistors is the pass transistor, and it is used to control the amount of current that flows through the circuit. When the voltage on the input is greater than the voltage at the output, the current will flow through the transistor and the output voltage will be reduced. When the input voltage is lower than the output voltage, the transistor will no longer conduct and the output voltage will remain stable regardless of the fluctuations in the input voltage. The second transistor is the error amplifier, which amplifies the difference between the input voltage and the output voltage. This is done by varying the gate voltage of the pass transistor, allowing the amount of current flowing through the pass transistor to be adjusted. The third transistor is the current source, which sets the current flow through the pass transistor to a constant level. This constant current flow is necessary to ensure that the output voltage remains stable regardless of the fluctuations in the input voltage. Conclusion The TI TPS70345PWPR is an excellent linear regulator for a variety of applications. Its wide input voltage range and low dropout voltage makes it a great choice for portable and industrial applications. The device is able to reduce a high voltage input to a moderate voltage output, ensuring stable output voltage. Moreover, the three transistors used in the device make it possible to regulate current and maintain steady output voltage regardless of input fluctuations.

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