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AP1117D15L-U
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AP1117D15L-U Description
AP1117D15L-U Description
The AP1117D15L-U is a fixed-output linear regulator designed by Diodes Incorporated, offering a stable 1.5V output voltage with a maximum input voltage of 18V. This regulator is capable of delivering up to 1A of output current, making it suitable for a wide range of power management applications. It features a dropout voltage of 1.4V at 1A, ensuring efficient operation even at lower input voltages. The device is housed in a TO252-3 package, which is ideal for surface mount applications and provides a compact footprint for space-constrained designs.
AP1117D15L-U Features
- Output Type: Fixed at 1.5V, ensuring a stable and reliable power supply.
- Input Voltage Range: Supports a maximum input voltage of 18V, providing flexibility in power source selection.
- Output Current: Capable of delivering up to 1A, suitable for moderate power applications.
- Dropout Voltage: Low dropout voltage of 1.4V at 1A, enhancing efficiency at lower input voltages.
- Protection Features: Over-current and over-temperature protection ensure robustness and reliability.
- Operating Temperature: Wide operating temperature range from 0°C to 125°C (TJ), suitable for various environmental conditions.
- Quiescent Current: Low quiescent current of 10 mA, minimizing power consumption during standby.
- PSRR: High power supply rejection ratio of 60dB at 180Hz, reducing noise and improving output stability.
- Compliance: REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory adherence.
- Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for storage and handling in various environments.
AP1117D15L-U Applications
The AP1117D15L-U is ideal for applications requiring a stable and efficient power supply. Its fixed 1.5V output and 1A current capability make it suitable for powering microcontrollers, sensors, and other low-power electronics. The low dropout voltage ensures efficient operation in battery-powered devices, where input voltage may vary. The over-current and over-temperature protection features make it reliable for use in harsh environments or applications with varying load conditions. Specific use cases include:
- Consumer Electronics: Powering microcontrollers and sensors in devices such as smartphones, tablets, and IoT devices.
- Industrial Applications: Providing stable power to control systems, sensors, and actuators in industrial environments.
- Automotive Electronics: Suitable for powering various electronic components in vehicles, given its wide operating temperature range and robust protection features.
- Medical Devices: Ideal for low-power medical devices requiring stable and reliable power sources.
Conclusion of AP1117D15L-U
The AP1117D15L-U from Diodes Incorporated is a versatile and reliable linear regulator, offering a stable 1.5V output with a maximum input voltage of 18V and a dropout voltage of 1.4V at 1A. Its low quiescent current, high PSRR, and robust protection features make it suitable for a wide range of applications, from consumer electronics to industrial and automotive systems. Despite being marked as obsolete, the AP1117D15L-U remains a valuable component for designers seeking a compact, efficient, and reliable power management solution.



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