AP1117D15L-U

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The AP1117D15L-U is a fixed-mode low dropout positive regulator manufactured by Diodes Incorporated. It provides a fixed 1.5V output with a maximum continuous current capability of 1A. The device operates within an input voltage range of 6.4V to 18V and features a typical dropout voltage of 1.3V at full load, with a maximum guaranteed dropout of 1.4V. It utilizes the TO-252-3L surface-mount package and is designed for commercial temperature operation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated thermal shutdown circuitry protects against excessive junction temperatures during overload conditions.
• Built-in output current limiting safeguards the regulator and connected loads from short circuits or overloads.
• Fast transient response ensures stable regulation during rapid changes in load current demands.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• High-speed bus termination
• Low current logic supply
• PC peripheral power management
• Communication equipment

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify component authenticity through authorized distribution channels due to potential counterfeit risks. Confirm RoHS compliance status and lead-free finish specifications prior to integration. Ensure proper handling procedures are followed as the device is moisture sensitive. Validate that the specific ordering suffix matches the required packaging format for production line compatibility.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a stable 1.5V rail is required for low-power digital logic or bus termination applications. The TO-252-3L package offers a balance between thermal performance and board space efficiency. Consider the minimum input voltage requirement relative to the desired operating headroom. Evaluate thermal dissipation capabilities based on the expected ambient temperature and PCB copper area available for heat spreading.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This part belongs to the AP1117 series of low dropout regulators, which includes both adjustable and fixed-voltage variants. The series is characterized by its ability to deliver up to 1A of output current while maintaining regulation with minimal voltage drop across the device. It serves as a cost-effective solution for general-purpose power management in consumer electronics and industrial systems requiring reliable voltage regulation.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

Direct substitutes include other AP1117 variants with different fixed output voltages such as AP1117D18L-U (1.8V), AP1117D25L-U (2.5V), AP1117D33L-U (3.3V), and AP1117D50L-U (5.0V). These parts share identical pinouts and electrical characteristics except for the regulated output voltage level.