AP2127N-3.3TRG1 Integrated Circuits (ICs)

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AP2127N-3.3TRG1 is a low dropout (LDO) linear regulator integrated circuit (IC) with a 3.3V fixed output voltage. It is designed for low power output requiring applications such as peripheral power management and embedded systems. It is classified as a PMIC (Power Management IC) - Voltage Regulators - Linear.

The AP2127N-3.3TRG1 contains a voltage reference, error amplifier, current limiter, thermal shutdown circuit and enable logic. It is capable of providing a stable power supply output up to a maximum load current of 600 mA with a dropout voltage of 200 mV. Its input voltage range is from 1.5V to 6.0V, making it well suited for low voltage applications. The AP2127N-3.3TRG1 operates in 4 common-mode modes: off, enable, normal and auto. The auto mode allows the device to dynamically adjust the output voltage to maintain desired output levels regardless of external conditions.

The AP2127N-3.3TRG1 offers excellent load and line regulation, and is capable of supplying high stability over temperature and voltage variations. It is designed for low noise operation and has a low quiescent current of 10 mA, making it ideal for battery operated and portable systems. The device is packaged in an SOT-23-6L surface-mount package, which offers a very small footprint on the circuit board.

The AP2127N-3.3TRG1 is suitable for a wide range of applications such as notebooks, PDAs, cellular phones, chargers and other power management applications. It has a reliable protection feature that provides over-temperature and over-current protection, making it an ideal choice for low power applications.

The working principle of the AP2127N-3.3TRG1 is based on the negative feedback principle. The device uses a reference voltage source along with an error amplifier to maintain a constant output voltage. When the load current increases, the output voltage will decrease and the error amplifier will increase the voltage on the output, bringing it back to the desired level.

The AP2127N-3.3TRG1 has several features which make it suitable for demanding applications. The device is protected from over-voltage, over-temperature, under-voltage and over-current conditions. It is immune to electrical transients and has excellent load and line regulation, which makes it suitable for low power systems. It also has a low quiescent current of only 10 mA, further enhancing its overall efficiency.

In conclusion, the AP2127N-3.3TRG1 is a low noise, low quiescent current linear regulator with a 3.3V fixed output voltage and excellent load and line regulation. It is suitable for a variety of applications, including notebooks, PDAs, cellular phones, chargers and other power management applications. It is an ideal choice for low power systems requiring protection from over-voltage, over-temperature, under-voltage and over-current conditions.

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