TPS79118DBVRG4

Current - Output:	100mA
Base Part Number:	TPS79118
Supplier Device Package:	SOT-23-5
Package / Case:	SC-74A, SOT-753
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO)
Control Features:	Enable
PSRR:	80dB ~ 45dB (100Hz ~ 100kHz)
Current - Quiescent (Iq):	250µA
Series:	--
Voltage Dropout (Max):	--
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	1.8V
Voltage - Input (Max):	5.5V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to TPS79118DBVRG4

The TPS79118DBVRG4 is a low-voltage, 1.5 A Low-Dropout Linear Regulator (LDO) with a wide input voltage range and a low dropout voltage. It offers the flexibility of both fixed-voltage and variable voltage operation in one small package with a total solution area of less than 0.5 mm2. The device is designed to maintain operations over a wide temperature range (−40°C to +125°C), and is rated for an output voltage range from 0.7V to 28V. It operates with very low ground current and features an on-board trim control pin that enables the change of output voltage from 0.7V to 28V in 0.1V steps. The TPS79118DBVRG4 is the perfect solution for applications in a wide range of industries, ranging from automotive to industrial and consumer applications.

Application Field of TPS79118DBVRG4

The TPS79118DBVRG4 is a low-voltage, low-dropout linear regulator suitable for a wide range of applications. In automotive applications, the device can be used to provide voltage regulation for engine control systems, headlight dimmer circuits, and power window drives. In industrial applications, the device provides reliable and efficient voltage regulation in battery-backed systems such as emergency lighting, UPS, and power supplies. The TPS79118DBVRG4 is also suitable for consumer applications such as cell phones, mobile devices, portable navigation systems, and tablets. It can be used in applications that require low-voltage, efficient, and reliable power conversion. The device can also work in a wide range of temperatures, making it suitable for applications in extreme environments such as automotive applications or extreme temperature fields.

Working Principle of TPS79118DBVRG4

The TPS79118DBVRG4 is a linear voltage regulator that utilizes a Positive-Voltage Division topology to achieve very low output voltage. It consists of an operational amplifier that is used to measure the output voltage in a negative feedback loop.The device uses a voltage divider to control the feedback path that is provided to the internal operational amplifier. This is an improvement over traditional linear voltage regulators that would need an external voltage divider. The voltage divider can be set with an external resistor to a desired voltage level within the output voltage range of the device. The device has a guaranteed dropout voltage of no more than 0.4 V across all output voltages. The dropout voltage is the voltage difference between input and output when the regulator is at the current-limit point. This ensures higher efficiency as the device does not need to dissipate power when there is little current draw from the output.Additionally, the device features a wide input voltage operating range that is suitable for battery-powered applications and applications with large input voltage fluctuations. This wide input voltage range enables the device to operate in harsher conditions with fewer restrictions on the input voltage. Finally, the device has a maximum output current of 1.5 A. This makes it suitable for supplying load currents up to 1.5A with very decent output voltage accuracy and low noise and ripple.

Conclusion

The TPS79118DBVRG4 is a low-voltage, low-dropout linear regulator suitable for a wide range of applications. With input voltage range that is wide enough for battery-powered applications and a dropout voltage of no more than 0.4 V, the device is able to provide efficient and reliable voltage regulation in harsh environments. Additionally, the device features a trim control pin that enables fine tuning of output voltage in 0.1V steps. This makes the TPS79118DBVRG4 an ideal solution for automotive, industrial, and consumer applications that require a reliable and efficient power solution.

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