AP2511MP-13 Integrated Circuits (ICs)

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PMIC (Power Management Integrated Circuit) is a highly integrated integrated circuit that can manage power distribution and load regulation, among other power distribution functions. Power Distribution Switches, Load Drivers, and AP2511MP-13 are three integral parts of PMIC. AP2511MP-13 is a low-voltage load switch controller with integrated power-down protection for battery-powered mobile applications. This article dives into application field and working principle of AP2511MP-13.

AP2511MP-13 applies to battery-powered mobile products, such as phones, tablet computers, POS machines, and other telecom products. It can be used in devices with limited power source, and associated with large capacitive loads. With download protection circuit, AP2511MP-13 can shut-down the power domain with single power rail when voltage dropping below the preset thresholds. AP2511MP-13 also may be used as battery charger control switch in applications with multiple power domains. Moreover, as current sense switch, AP2511MP-13 can support current detection and power-down scheme.

AP2511MP-13 divides the power into two parts. The first one is controlled power domain, which is configured to low side from a pull-down FET or PMOS, and integrated with power-down protection. The second is an uninhibited power domain, which is configured to high side with a PFET, and to enable power supply. Not only that, AP2511MP-13 also provides latch off protection when current drops below the trigger level.

AP2511MP-13 has dual power inputs with single power supply: battery power (VBAT) and system power (VIN). A logic signal is set to switch power on/off based on external control signals, and a battery detect pin to control the system. Under normal working voltage, logic signal is enabled, and power on. When system voltage goes down, logic signal is disabled, and power down. This feature can be used in applications such as power down protection, battery charger control switch and current sense switch.

AP2511MP-13 also includes two LED pin, which can be used to indicate power-on state and low voltage warning respectively. Furthermore, it supports over-temperature protection, preventing the device from high temperature, and short-circuit protection, preventing the system from short-circuit status, thus ensure safety of the system.

AP2511MP-13 is operating with a 1.6v to 3.6v single power supply, and the operating current is between 1mA and 50mA, dependent on process and voltage. Its power supply is distributed with two different sections: one is built-in battery chargers; the other is built-in power supplies. Its output range is 1.55v to 3.5V with high conversion efficiency, and low quiescent current consuming.

The power consumption of AP2511MP-13 can be considered as very low, since it utilizes the best-in-class low power techniques to transfer power from input to the output with minimum loss. Furthermore, AP2511MP-13 works with a very low operating voltage, which makes it suitable for battery-powered and system power applications.

In conclusion, AP2511MP-13 is a highly integrated low voltage load switch controller with integrated power-down protection for battery powered mobile applications. It can be used in battery-powered mobile products, such as phones, tablet computers, POS machines, and other telecom products, with its two power inputs, two LED pins and safety protections.

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