AP131-28WG-7

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  Introduction  The AP131-28WG-7 is a linear voltage regulator that provides ultra-low quiescent current and low noise operations. It is designed to enable cost-effective solutions in applications such as medical equipment, wearables and battery-operated device. It has a wide input voltage range and provides excellent regulation characteristics. It also features over-temperature and over-voltage protection as well as low dropout voltage and current limit functions.  Application Field   The AP131-28WG-7 voltage regulator supports a wide input voltage range of 2.5 V to 28 V and is suitable for applications in low voltage (1.8 V, 1.5 V) and high voltage (3.3 V, 5 V) output applications. It can be used in a variety of medical equipment, wearables, and battery-operated devices such as remote controllers, medical equipment, and battery-operated toys. It is also suitable for LED lighting products and can be used in automotive applications.   The AP131-28WG-7 is designed to meet the requirements of the European Medical Device Directive (MDD) 93/42/EEC. It is also CE certified, RoHS compliant, and has safety approvals from UL and TUV.   Working Principle   The AP131-28WG-7 is a low drop-out linear voltage regulator. It uses an internal PNP power transistor to pass current from the input to the output, regulating the output voltage according to the specifications. It has a wide input voltage range and can provide excellent voltage regulation characteristics. It also features over-temperature and over-voltage protection. It contains built-in current limit circuit that limits the output current to protect the device from over-current conditions.   The AP131-28WG-7 voltage regulator has a maximum output current of 1.2 A and a maximum output power of 22 W. It has a low quiescent current of 1.1 μA when operating in shutdown mode, making it suitable for battery-operated applications. It also has low noise performance and ensures a noise level of less than 100 μVrms.   The AP131-28WG-7 voltage regulator also features over-temperature protection, which will shutdown the device if it exceeds the set threshold temperature. This prevents the device from thermal runaway, as well as ensuring that no damage occurs to the device.   Conclusion  The AP131-28WG-7 voltage regulator is a linear voltage regulator that provides ultra-low quiescent current and low noise operations. It is designed to enable cost-effective solutions in applications such as medical equipment, wearables and battery-operated device. It has a wide input voltage range and provides excellent regulation characteristics, as well as over-temperature and over-voltage protection and low dropout voltage and current limit functions. It is also suitable for use in a variety of medical equipment, wearables, battery-operated devices, LED lighting products and automotive applications. 

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