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The AP7315D-28FS4-7B is a low dropout regulator manufactured by Diodes Incorporated, featuring an integrated resistor network for a fixed 2.8V output voltage. It operates within a wide input voltage range of 1.7V to 5.25V and guarantees a continuous output current of 150mA. The device incorporates an enable pin for power control and includes built-in auto-discharge functionality when disabled. Packaged in the compact X2-DFN1010-4 format, it provides high ripple rejection and low output noise suitable for sensitive electronics.
Verify the specific package code FS4 corresponds to the X2-DFN1010-4 footprint required for your PCB layout. Confirm the 'D' suffix indicates the presence of the internal discharge resistor, as this affects standby behavior compared to non-discharge variants. Ensure the ordering suffix matches the tape and reel quantity specifications provided in the manufacturer's documentation.
Select this component when a fixed 2.8V rail is required with minimal board space constraints due to the small DFN package. The inclusion of the enable pin makes it suitable for battery-powered systems requiring power management features. Verify that the input voltage remains within the specified 1.7V to 5.25V range to ensure stable regulation under all operating conditions.
This part belongs to the AP7315 series of low dropout regulators from Diodes Incorporated. The series utilizes a CMOS process to achieve low quiescent current and high accuracy. The AP7315D variant specifically denotes the version equipped with an output discharge function, distinguishing it from the standard AP7315 model which lacks this feature.
AP7315-28FS4-7B