AP2125K-2.5TRG1

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The AP2125K-2.5TRG1 is an integrated low dropout (LDO) linear voltage regulator. It is designed to deliver up to 2.5A of output current with a very low dropout voltage, making it suitable for a wide range of applications. It has a fixed output voltage of 2.5V and is designed to operate from a single supply voltage of 3.3V to 6V. It also has a wide input voltage range of 2.5V to 8V, which makes it ideal for battery powered applications. The device has on-chip protection against over-current, thermal shutdown and reverse current flow. The AP2125K-2.5TRG1 also provides a power good signal, which indicates when the output voltage is within the prespecified regulation range.

The AP2125K-2.5TRG1 has a low quiescent current of only 15uA, making it suitable for low power applications. It also has excellent noise rejection, making it ideal for noise sensitive applications. The slew rate is adjustable, allowing for easy adjustment of the output voltage for different applications. The output can be trimmed to a precision accuracy of + or - 1mV, making it suitable for high accuracy applications.

The AP2125K-2.5TRG1 is primarily designed for use in portable devices where power management is critical. It is widely used in digital still cameras, notebook computers, and mobile devices. Other applications include base station, point-of-sale equipment, and portable data terminals. The device has a wide operational temperature range of -40°C to +125°C.

The working principle behind the AP2125K-2.5TRG1 is fairly simple. The device contains an internal voltage reference, a voltage amplifier, a current limiter and a power diode. The voltage reference compares the incoming voltage against the predetermined output voltage, which is set internally and by user. If the input voltage is greater than the output voltage, the amplifier will turn the power diode on and this will lower the input voltage. Conversely, if the input voltage falls below the predetermined output voltage, the voltage amplifier will turn off the power diode and this will raise the input voltage. In this way, the output voltage remains regulated.

The AP2125K-2.5TRG1 also provides protection against over-current, thermal shutdown and reverse current flow. It can be used in automotive, industrial and home appliance applications, as well as in high reliability systems. In addition, it has a wide range of features, including adjustable current limit and power good signal, making it an excellent choice for a variety of power management applications.

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