LP2966IMM-1830/NOPB

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The LP2966IMM-1830/NOPB 9V Linear Voltage Regulator is a Micropower, Low-Dropout (LDO) device, used widely in many different applications. This device provides a regulated output with a minimal quiescent current. It is well-suited for use in hand-held and other battery-powered applications. The LP2966IMM-1830/NOPB is a three-terminal integrated circuit (IC) designed for use as a positive voltage regulator of up to 9 Volts, in low noise, low-power applications.

General Features of LP2966IMM-1830/NOPB

• High input voltage – from 9V to 20V
• Low quiescent current – 3.7mA
• High peak current – 300mA
• Low output noise – 100μV
• Low Dropout Voltage – 300 mV
• High accuracy – 30mV
• Thermally enhanced package

Applications of LP2966IMM-1830/NOPB

The LP2966IMM-1830/NOPB 9V Linear Voltage Regulator can be used for a variety of applications, including:

• Cellular phones, PDAs, portable computers, and other battery-operated devices such as calculators, cameras and camcorders
• High-efficiency, low-power circuits and power conditioning
• Post-regulators for switch-mode supplies
• Flash-memory program down-loads
• Low-dropout linear voltage regulator applications

Working Principle of LP2966IMM-1830/NOPB

The LP2966IMM-1830/NOPB 9V Linear Voltage Regulator operates by utilizing a distributed feedback error amplifier stage and a low quiescent current PNP series pass transistor. The amplifier stage has a very high gain which makes possible the very low-dropout voltage of the device, as well as its very high accuracy output over temperature and line. The amplifier computes the difference between the reference voltage and the output voltage, and adjusts the voltage across the series pass transistor in order to maintain the correct output voltage.

The series pass transistor is integrated into the IC, and works to regulate the output voltage by controlling the current from the input to the output. The current out of the series pass transistor is determined by the voltage across the transistor, which is in turn determined by the control from the error amplifier. As the output voltage changes, either due to a change in the input voltage or a change in the load, the error amplifier will continuously adjust the output voltage back to the correct voltage set point.

The LP2966IMM-1830/NOPB has very low input noise and high accuracy. This makes it ideal for use in applications where low noise and high accuracy voltage regulation is needed. The low dropout voltage and high peak current make this device suitable for use in a wide variety of applications.

Advantages of LP2966IMM-1830/NOPB

• High accuracy (± 5% over temperature)
• Low dropout voltage (300 mV)
• Low quiescent current (3.7 mA)
• High peak output current (300 mA)
• Low output noise (100 μV)
• Thermally enhanced package for improved reliability and lower power consumption

The LP2966IMM-1830/NOPB is an ideal solution for many low voltage applications requiring accurate and stable output voltage. It is well-suited for use in hand-held and other battery-powered applications such as cellular phones, PDAs, portable computers, and other battery-operated devices such as calculators, cameras, and camcorders.

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