AP1084T50G-U

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AP1084T50G-U belongs to APM’s family of linear voltage regulators, which is designed for use in power applications in space-constrained low power applications. It is capable of delivering continuous output current of up to 50mA with excellent line and load regulation, as well as low dropout voltage. The combination of these features, as well as a wide adjustable output voltage range from 1.2V to 5.0V make it an ideal solution for a variety of power systems.

The main application field for AP1084T50G-U is the point-of-load (POL) DC-DC conversion, such as powering automotive audio, portable devices, and telecom systems. Moreover, its features are equally suitable for generalized battery-powered systems, computer system boards, and data centers. It operates with an input supply voltage ranging from 3V to 18V and a power dissipation reaches up to 300mW.

The AP1084T50G-U works by controlling a MOSFET transistor to regulate the output voltage. This method of voltage regulation is known as a “linear” type of voltage regulator. The AP1084T50G-U is equipped with a cascade control loop, which works by comparing the specified output voltage setpoint to the actual output voltage of the circuit. When there is any deviation between the two, a signal is sent to the control circuitry, prompting the MOSFET transistor to adjust its resistance in order to return the output voltage back to the setpoint.

The AP1084T50G-U also uses voltage sense technology which helps maintain the output voltage by utilizing a comparator/feedback loop. First, the reference voltage is compared to the output voltage, and then the transistor’s gate voltage is adjusted accordingly. This method of regulating the output voltage ensures a tight output voltage regulation of ±2%, and an overall low power consumption. The AP1084T50G-U also ensures an excellent line regulation, load regulation, and transient response.

In addition to its excellent regulation performance, the AP1084T50G-U also offers many other benefits such as a low dropout voltage of 300mV, current limiting protection, thermal protection, and reverse current protection. These features make it an ideal solution for applications that require fast response time, excellent voltage control, and high reliability.

In conclusion, AP1084T50G-U is an excellent linear voltage regulator for use in various power systems due to its excellent regulation performance, low dropout voltage, current limiting protection, thermal protection, and reverse current protection. It offers a wide input supply voltage range, low power dissipation and a small footprint, making it ideal for space constrained applications. All in all, it is a great linear regulator for automotive audio, portable devices, and telecom systems.

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