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AP1186K5-18L-13 is listed in the Voltage Regulators - Linear, Low Drop Out (LDO) Regulators range at ChipApex. The manufacturer field lists Diodes Incorporated. Its product description is IC REG LINEAR 1.8V 1.5A TO263-5. Review the specifications below when checking this part for your BOM.
The AP1186K5-18L-13 is a discontinued positive fixed-mode linear regulator manufactured by Diodes Incorporated. It provides a fixed output voltage of 1.8V with a maximum load current capability of 1.5A. The device utilizes a TO263-5L surface-mount package and features an ultra-low dropout voltage of 0.38V at full load. Key electrical specifications include a maximum input voltage of 16V, a ripple rejection of 70dB at 120Hz, and an operating junction temperature range from 0°C to +150°C.
This component is officially marked as obsolete and discontinued by the manufacturer. Verification of availability should focus on surplus or secondary market channels rather than standard distribution. Confirm that the specific suffix indicates lead-free compliance and tape-and-reel packaging if required for automated assembly processes.
Designers must account for the requirement of a control voltage (Vctrl) that exceeds the input voltage to ensure proper regulation. The device necessitates external capacitors for stability, specifically a minimum of 100uF on the output and sense pins. Verify that the application can support the necessary dual-rail input configuration typical for this regulator family.
The AP1186 series is designed to offer PNP-like dropout characteristics without the associated base current power dissipation. By utilizing a separate control pin, it allows for flexible biasing in systems with multiple available voltage rails, such as computer motherboards providing both 5V and 3.3V outputs.
No alternate part numbers are confirmed by the manufacturer for this obsolete component.
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