TPS79918DDCTG4

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The TPS79918DDCTG4 is a low-battery-monitor linear voltage regulator with high-accuracy thresholds. It can provide a regulated output voltage of up to 3.3 V and a maximum input voltage of up to 2.75 V, providing an adjustable voltage to match the requirements of different applications. This regulator simplifies the design of systems that require high accuracy, low-voltage regulation in a low-profile package.

Application Field

The TPS79918DDCTG4 is suitable for a wide range of applications, such as battery-powered consumer electronic products and automotive electronics. It\'s also developed for applications that need to ensure accuracy and reliability, such as medical equipment and precision measurement/control instruments. It\'s highly compatible with a variety of battery chemistries, including lithium ion, nickel-metal hydride, and lead-acid batteries. Additionally, the TPS79918DDCTG4 can be used in industrial and automotive applications where wide temperature ranges and robust design is required.

Working Principle

The TPS79918DDCTG4 works on the principle of linear regulation and is equipped with a low quiescent current of 4 mA. The TPS79918DDCTG4 integrates a power MOSFET and two control loops, allowing it to deliver a high output current of up to 800 mA at 3.3 V. Its power-on reset (POR) is accurate and independently calibrated, providing a 10 mV to 2.75 V range. Temperature-compensated bandgap reference, comparator and error amplifier are used to ensure an accurate and stable output voltage.

Other Features

The TPS79918DDCTG4 provides an input voltage disconnect feature, which disables the regulator when the battery voltage drops below a threshold. This improves the power efficiency of the system and reduces the power consumption when the supply voltage is lower than the regulation voltage. The device also integrates a high-accuracy battery lower-threshold detection circuit that can issue an interrupt signal when the output voltage drops below a certain level. Additionally, the TPS79918DDCTG4 can provide power-good signal, under-voltage/over-voltage protection, and current limit sensing.

Conclusion

The TPS79918DDCTG4 is a versatile, low-profile linear voltage regulator that provides highly accurate regulation for a wide range of applications. With its low quiescent current and advanced features, such as input voltage disconnect, battery lower-threshold detection, power-good signal and over-voltage/under-voltage protection, it is an excellent choice for automotive and industrial applications that require reliable performance and long battery life.

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