TPS79325YEQEVM

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Channels per IC:	1 - Single
Moisture Sensitivity Level (MSL):	--
Voltage - Output:	2.5V
Current - Output:	200mA
Voltage - Input:	2.7 V ~ 5.5 V
Regulator Type:	Positive Fixed
Board Type:	Fully Populated
Supplied Contents:	Board(s)
Utilized IC / Part:	TPS79325

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IntroductionThe TPS79325YEQEVM is an evaluation board of linear voltage regulators designed by Texas Instruments (TI). It is a cost-effective development platform providing engineers with the flexibility to evaluate and explore the features, performance, and quality of TI’s PWM, current mode, and low-dropout (LDO) linear voltage regulators. The purpose of this article is to evaluate and explain the application field and working principle of the TPS79325YEQEVM.Application Field of TPS79325YEQEVMThe TPS79325YEQEVM was designed for general purpose low-power voltage regulation in a wide variety of industrial and consumer applications. Specifically, the board is best suited for use in applications such as battery-powered devices, automotive systems, power supplies, mains or AC/DC regulation, energy harvesting electronic devices, and narrow-voltage applications.The board is also suitable for a variety of low-voltage, low-current applications, such as driving multiple LEDs, powering micro-controllers or DSPs, and driving millivolt signals. Similarly, it can provide a stable voltage output in low-noise and low-power portable devices such as digital media players, smart phones, tablet PCs, and medical equipment.Working PrincipleLinear voltage regulators employ an error amplifier which compares a reference voltage to an input voltage in order to regulate output voltage. The TPS79325YEQEVM regulator uses a comparator to compare the reference voltage to the input voltage and control the output voltage level. The difference between the reference voltage and the input voltage is then amplified by the error amplifier, which controls a pass transistor to maintain the desired output voltage level.The output voltage of the TPS79325YEQEVM is internally set by a resistor divider network consisting of two resistors connected between the output voltage pin (VOUT) and ground. The output voltage is pre-set to either 5.0V, 3.3V, or 1.2V, though the reference voltage can be externally adjusted using an external resistor and capacitor.ConclusionIn summary, the TPS79325YEQEVM evaluation board of linear voltage regulators provides engineers with the flexibility to evaluate and explore the features, performance, and quality of TI’s PWM, current mode, and low-dropout (LDO) linear voltage regulators. The application field of the TPS79325YEQEVM includes battery-powered devices, automotive systems, power supplies, mains or AC/DC regulation, energy harvesting electronic devices, and narrow-voltage applications. The working principle of the board employs an error amplifier which compares a reference voltage to an input voltage in order to regulate output voltage. With its robust features and stable output, the TPS79325YEQEVM is an ideal choice for low-power voltage regulation in a variety of industrial and consumer applications.

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