AP1184K5-33L-13

The AP1184K5-33L-13 is a linear voltage regulator from Diodes, Inc. It is an adjustable voltage regulator chip that is used for voltage regulation in power management applications. It is an integrated circuit (IC) optimized for use in step-down applications, allowing system designers to adjust the output voltage from 2.8V to 13.2V. Applications for the AP1184K5-33L-13 include microprocessor core voltage regulation, battery chargers, automotive applications, medical devices, and audio amplifiers.

The AP1184K5-33L-13 linear voltage regulator is an adjustable type device that provides regulation over a wide input voltage range and also control of the output voltage. It provides precise regulation of the output voltage over a wide range of load conditions by internally compensating for changes in the input voltage, load current, and temperature. Additionally, the AP1184K5-33L-13 features an integrated voltage reference, enabling system designers to customize the output voltage precisely to their target application environment.

The AP1184K5-33L-13 linear voltage regulator is designed to be used in power supply circuits requiring a precision regulated voltage. By combining a power MOSFET, low dropout linear regulator, and protective features, it provides the benefits of high output voltage accuracy, low power dissipation, and current limit protection in a small and cost-effective package. Furthermore, the IC features shutdown, overvoltage, and thermal protection with an adjustable input voltage of 4.5V to 13.2V.

Working Principle: The working principle of the AP1184K5-33L-13 linear voltage regulator is based on the circuit of a conventional series regulator. The input voltage is applied to the input and the output voltage is sensed at the FB pin. The voltage at the FB pin is compared to the reference voltage, and the error amplifier adjusts the gate of the power MOSFET to form a feedback loop. The output voltage is regulated to the targeted value, when the error amplifier stabilizes the voltage.

The power MOSFET is internally compensated, allowing the use of a small external compensation capacitor. The AP1184K5-33L-13 also includes an overvoltage protection feature, where if the output voltage exceeds the overvoltage limit, the device goes into a safe-mode latch state, providing additional protection to the system.

Overall, the AP1184K5-33L-13 linear voltage regulator is an integrated circuit that delivers a precise, adjustable, and highly reliable regulated output voltage, making it an ideal choice for applications such as microprocessors, audio amplifiers, power supply circuits, and battery chargers. It features an easy-to-use design, making it a simple and inexpensive way to implement voltage regulation into power management design projects.