AP7331-15WG-7

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

AP7331-15WG-7 is a linear voltage regulator which is categorised under PMIC (Power Management ICs) and Voltage Regulators, Linear. As a two-terminal device, it maintains its output voltage with a relatively low output impedance. This low internal resistance offers a precision output voltage during line and load conditions.

AP7331-15WG-7 has various features and applications. It can be used for components requiring direct connection to the power source due to its low input voltage range of 1.2V to 28V. It has an output voltage range from 0.8V to 4V and 4A current capacity with an extended temperature range up to 105°C. The AP7331-15WG-7 was designed to provide accurate voltage regulation and eliminate the need for external components. It is designed primarily for voltage regulation with a low quiescent current of only 5.5mV, hence it is widely used for portable electronic devices.

The working principle of AP7331-15WG-7 is quite simple. The input voltage is applied to the input pin and is regulated by the internal h-bridge style MOSFET and the voltage right across the output pin is of regulated value. The power components inside the linear regulator are the same as for a synchronized buck (synchronous rectification) converter, where the input voltage and output voltage are roughly equal. The power MOSFETs are used as switches, allowing current flow from the input to the output when the logic circuit brings the two terminals together. The energy flow from the input is limited by the load, allowing the load to absorb more energy when it is larger.

In order to maintain a stable output voltage, the AP7331-15WG-7 employs a differential current-mode control circuit. This control circuit consists of a differential amplifier and a pair of P-channel and N-channel MOSFETs, both of which are necessary for a linear regulator to work. The amplifier works like a comparator, comparing the input voltage and the output voltage. If it finds a difference between the two, then it will turn on or off the P-channel and N-channel switches.

If the input voltage is lower than the output voltage, then the P-channel MOSFET will be shut off and the N-channel will be turned on, allowing the current to flow from the input pin to the output pin, thus maintaining the desired output voltage. The current passing through the differential amplifier is used to control the duty cycle of the P-channel and N-channel MOSFETs. This will cause the output voltage to be regulated automatically.

The AP7331-15WG-7 is an ideal choice for any applications where low input voltage and high current are required. It is also capable of achieving high efficiency and wide range of output voltage due to its wide input voltage range and strong temperature operating range. Therefore, it can be successfully used in various modern applications such as industrial and telecommunications equipment, portable devices, battery-powered systems, automotive applications and chargers.

The specific data is subject to PDF, and the above content is for reference