TPS79918DDCRG4

Current - Output:	200mA
Base Part Number:	TPS79918
Supplier Device Package:	SOT-23-5
Package / Case:	SOT-23-5 Thin, TSOT-23-5
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
PSRR:	70dB ~ 38dB (100Hz ~ 100kHz)
Current - Quiescent (Iq):	60µA
Series:	--
Voltage Dropout (Max):	0.18V @ 200mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	6.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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TPS79918 DDCRG4 Application Field and Working Principle

PMIC, or power management integrated circuits, are the building blocks of any electronic circuit and can regulate both the voltage and current of power distribution networks. Voltage regulators are one of the most common types of PMICs, and the TPS79918 DDCRG4 is a particularly versatile example. This IC is designed to control the current from a 24V power supply, and can be used to provide adjustable outputs ranging from 0.25V to 24V. In this article, we\'ll take a closer look at the TPS79918 DDCRG4\'s application field and working principle.

Applications of the TPS79918 DDCRG4

The TPS79918 DDCRG4 is an ideal choice for a wide range of applications, including small device power control, automotive and industrial electronics, building controls, or any application where voltage and current regulation is needed.One of the most common applications of the TPS79918 DDCRG4 is in automotive systems, where it is used to control the current from a 24V power supply. It can be used to provide adjustable outputs, ranging from 0.25V to 24V for supplying power to headlights, fan motors, and other automotive components. The TPS79918 DDCRG4 is also used in industrial applications, where it is used to control the current from a 24V power supply, such as a backup generator. It can be used to provide adjustable outputs ranging from 0.25V to 24V for controlling motors, pumps, and other industrial components. In addition, the TPS79918 DDCRG4 is used in building controls, where it is used to regulate the power supply for HVAC systems, lighting controls, and other building components.

Working Principle of the TPS79918 DDCRG4

The TPS79918 DDCRG4 is a linear voltage regulator, which means it uses a circuit to control the current from a 24V power supply and can provide adjustable outputs ranging from 0.25V to 24V.The TPS79918 DDCRG4 is controlled by an integrated voltage error amplifier, which monitors the output voltage and constantly compares it to a reference voltage to ensure that the output voltage is always within the specified range. The reference voltage is provided by an external resistor. The voltage error amplifier is connected to a voltage regulator which consists of an operational amplifier and a pass transistor. The operational amplifier compares the output voltage to a reference voltage provided by the voltage error amplifier and adjusts the pass transistor accordingly. The pass transistor is connected to the external resistor which is used to set the output voltage to the required level. The pass transistor then limits the current flow from the 24V power supply, thus regulating the output voltage.

Conclusion

The TPS79918 DDCRG4 is a linear voltage regulator that can be used to control the current from a 24V power supply and provide adjustable outputs ranging from 0.25V to 24V. It is suitable for a variety of applications, including automotive and industrial electronics, as well as building controls. The working principle of the TPS79918 DDCRG4 involves an integrated voltage error amplifier, an operational amplifier, and a pass transistor, which together regulate the output voltage.

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