AP7344D-2812RH4-7

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AP7344D-2812RH4-7 Voltage Regulators are part of the Linear Voltage Regulation family of Power Management Integrated Circuits (PMICs).These products are designed to offer process and power supply voltage regulation from a single chip, with an accuracy of ±2%.

The AP7344D-2812RH4-7 is a linear voltage regulator featuring ultralow quiescent current, low shutdown current, and high output accuracy. It is ideal for use in cost-sensitive, space-constrained, and power-sensitive systems. When enabled, it provides the regulated output voltage supply of either 2.5 V or 3.3 V.

This voltage regulator offers very low supply current, enabling it to be used in various low-power applications. It features an interface and protection features that enable it to be used for high voltage and low voltage supplies. The AP7344D-2812RH4-7 also includes a temperature sensor input and watchdog timer functions, providing a highly configurable voltage regulator.

The AP7344D-2812RH4-7 works by using a standard linear regulator approach, where the output voltage is set by the ratio of an internal reference voltage to a feedback voltage, multiplied by a fixed output. More specifically, the voltage regulator maintains the reference voltage at a constant value by comparing it to an external voltage divider. To set the output voltage, the voltage divider is given a feedback voltage equivalent to the output voltage. A high-speed error amplifier is responsible for comparing the reference and feedback voltages, then adjusting the internal drive current to the pass transistor.

The AP7344D-2812RH4-7 also features over-current and over-temperature protection. It also has a slew rate control function which can limit the output voltage rise and fall rates. This feature helps in reducing the output current to the load for systems that require lower inrush currents.

The AP7344D-2812RH4-7 is designed in an MSOP8 package and is ideal for use in various single cell Li-ion/polymer or 6-12V applications, such as PDAs, digital cameras, GPS, audio devices, and portable medical equipment. It is also applicable in automotive and consumer electronics markets.

In summary, the AP7344D-2812RH4-7 is an ideal voltage regulator solution for many low power applications, offering ultra-low quiescent current, low shutdown current, and high output accuracy. Its over-current and over-temperature protection functions enable it to be safely used in a variety of applications.

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