LP3995ILD-1.8

LP3995ILD-1.8 is a Linear Voltage Regulator within Product Management Integration Circuits (PMIC) family. PMICs control the power flow between different power domains, centralizing the power supply, monitoring current and logging events.

Modern circuit units require multiple voltage regulators for its different electrical components, integrating a single LP3995ILD-1.8 Linear Voltage Regulator can provide more consistent current and voltage to the component, thus reducing design style time, product size and costs.

The LP3995ILD-1.8 integrates the analog circuitry, digital logic, and a single power FET in one package, so it has better security and better control of the output current compared with traditional Voltage Regulators.

Application Field

The LP3995ILD-1.8 Linear Voltage Regulator is a low power Consumption regulator. It isa high efficiency device suitable for battery powered system designs. LP3995ILD-1.8’s low Iq makes it perfect for applications requiring low current draw from components such as microprocessors, sensors and A/D converters.

LP3995ILD-1.8 is ideal for industrial, automotive, military and consumer electronic applications, such as home appliances, TVs, game consoles and laptops. Designed with high temperature operation and over-temperature protection, it is an excellent choice for more extreme environments.

Working Principle

The LP3995ILD-1.8 is a linear voltage regulator uses a buck-boost architecture with a charge pump as the main power source. It implements a control loop, which controls the output voltage through a series of calculations.

When the voltage at the output is higher than the target voltage, the regulator switches the pass transistor off to stop current flowing into the output. When the output voltage is lower than the target voltage, the pass transistor will switch on to rectify the current flow into the output. Due to the nature of the buck-boost architecture, the output voltage can be higher or lower than the input voltage but up to set voltage limits.

The LP3995ILD-1.8 also features current-limiting and overvoltage protection, double pulse rejection, thermal shutdown and other features to ensure the system won’t suffer from unexpected conditions.

Conclusion

The LP3995ILD-1.8 Linear voltage regulator is an excellent choice for modern circuit designs where energy efficiency and security are a factor. It integrates the analog circuitry, digital logic and a single power FET in one package, so it provides consistent current and voltage. It\'s ideal for applications requiring low current draw in various situations like industrial, automotive, military and consumer electronic applications. With features like current limiting and overvoltage protection, thermal shutdown, and double pulse rejection, it can ensure the system won’t suffer from unexpected conditions.