AP3125HAKTR-G1

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Power Management ICs (PMICs) are a class of integrated circuits composed of multiple power converters, power controllers, and voltage regulators. These components are designed to supply power and control other power sources ranging from microprocessors to radio frequency transceivers. The AP3125HAKTR-G1 is a PMIC specifically designed to provide precise voltage and current control. This document provides information on the application field and working principle of the AP3125HAKTR-G1.

Overview

The AP3125HAKTR-G1 is a high performance, dual-channel, step-down DC-to-DC converter with an integrated power-management IC (PMIC) optimized for automotive applications. It provides a constant output voltage of 3.125V, with a maximum output current of 1.3A. The AP3125HAKTR-G1 is designed to provide precise voltage and current control for low voltage (<10V) systems, such as those found in vehicles, industrial applications, and other power-sensitive applications. This PMIC is ideal for automotive applications, thanks to its low quiescent current consumption and high efficiency.

Application Field

The AP3125HAKTR-G1 is used as a power supply in various automotive applications, such as monitoring systems and telematics devices. It is also suitable for use in industrial applications, such as industrial automation systems, which require precise voltage control. The AP3125HAKTR-G1 can be used in radio frequency (RF) transceivers and digital signal processors (DSPs) for high performance, low power consumption. Other applications for the AP3125HAKTR-G1 include low voltage FPGAs, PLDs, ASICs, or mixed signal systems.

Working Principle

The AP3125HAKTR-G1 is a step-down DC-to-DC converter with a wide input voltage range of 6V to 24V. It has two separate output channels that can be configured to provide two separate output voltages. The output voltage is adjustable via a voltage divider network and the current limit is adjustable via an external resistor. The maximum output current of each channel is 1.3A. The AP3125HAKTR-G1 also features a low quiescent current consumption and a high efficiency of up to 95%. Additionally, the PMIC is protected against overcurrent, short circuits, and overvoltage.

The output voltage of the AP3125HAKTR-G1 is controlled using pulse-width modulation (PWM) control. This allows for precise voltage and current control. The PWM ramp is generated internally and is synchronized to the load current, ensuring smooth transitions and accurate control. Additionally, the AP3125HAKTR-G1 includes a slew-rate control function, which reduces the output voltage ripple. This ensures a low output noise for sensitive applications.

Conclusion

The AP3125HAKTR-G1 is a high performance, dual-channel, step-down DC-to-DC converter with an integrated power-management IC (PMIC), designed for automotive applications, industrial applications, and other power-sensitive applications. Its low quiescent current consumption and high efficiency make it an ideal choice for applications requiring precise voltage and current control. The output voltage is controlled using pulse-width modulation (PWM) control and the AP3125HAKTR-G1 features a slew-rate control function to reduce output voltage ripple and provide low output noise.

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