LP2966IMMX-1833/NOPB

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Introduction

LP2966IMMX-1833/NOPB is a voltage regulator in the PMIC (Power Management Integrated Circuit) linear category. It is commonly used for applications such as automotive, industrial, and consumer electronic products. The regulator provides high precision voltage regulation and can be used to power a variety of integrated circuits from microcontrollers to FPGAs. It is also useful in applications where low noise, high accuracy, and low power consumption are important.

Application Field

LP2966IMMX-1833/NOPB voltage regulator is commonly used in automotive, industrial, and consumer electronic products. It is well suited for applications where high accuracy and low power consumption are essential, such as controlling the voltage for the following products: microcontrollers, FPGAs (Field Programmable Gate Arrays), DSPs (Digital Signal Processors), and ASICs (Application Specific Integrated Circuits). Additionally, the low noise voltage regulator can be used in medical equipment, handheld devices, and automotive applications. The wide input voltage range of 4.5V to 28V and adjustable output current of up to 3mA makes it suitable for a wide range of applications.

Working Principle

The LP2966IMMX-1833/NOPB is a three-terminal adjustable voltage regulator. The input voltage is applied to the Vin terminal, the output voltage is connected to the Vout terminal, and the adjust terminal is used to control the output voltage. The output voltage is set using an external resistor divider connected between the Vout and the Adjust terminal. The voltage divider sets the voltage at the Adjust terminal and then the regulator keeps the output voltage regulated at the set value.

The regulator uses PWM (Pulse Width Modulation) to maintain the output voltage and also includes other features such as current limit and thermal shutdown. A built-in comparator monitors the output voltage and the current on the power supply. When the voltage starts to drop or the current starts to exceed its limit, the regulator switches off. This prevents the supply from damage. Additionally, the under-voltage lockout circuit prevents high current from being drawn by the regulator when the input voltage is low.

The regulator also has thermal shutdown protection, which reduces the output current to limit the device’s temperature when it exceeds the maximum junction temperature. The thermal shutdown can be adjusted by changing the value of an external resistor. It also has an enable pin, which is used to control the enable/disable operation of the device.

Conclusion

LP2966IMMX-1833/NOPB voltage regulators are used in a broad range of applications due to their high precision regulation and low power consumption. The voltage regulator offers low noise operation, high accuracy and current limit protection, and adjustable thermal shutdown. The wide input voltage range and adjustable output current make it suitable for use in automotive, industrial, and consumer electronic applications.

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