AZ1117D-2.5TRE1

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

The AZ1117D-2.5TRE1 is a fixed positive linear regulator from Diodes Incorporated, delivering a nominal 2.5V output at up to 1A current. It operates within an input voltage range of 3.9V to 15V and features a typical dropout voltage of 1.15V at full load. The device incorporates a trimmed bandgap reference for precise regulation and includes on-chip thermal shutdown and current limiting for protection. It is housed in a TO-252-2 (3) surface-mount package and supports junction temperatures from -40°C to +125°C.

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

• Integrated thermal shutdown protects against excessive junction temperatures during overload conditions.
• Trimmed current limit ensures controlled short-circuit current and specified output capability.
• Low dropout voltage design maintains regulation with minimal input-to-output differential.

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

• PC Motherboard
• LCD Monitor
• Graphic Card
• DVD-video Player
• NIC/Switch

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

Verify the component marking ID matches the official datasheet specifications for the TO-252-2 (3) package. Confirm RoHS compliance status and ensure the ordering suffix corresponds to the required tape and reel packaging format. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity before procurement.

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

Select this regulator when a stable 2.5V supply is required for low-power digital logic or peripheral circuits. Ensure the input voltage remains above the minimum threshold while accounting for the dropout voltage under maximum load conditions. Verify that the thermal management strategy accommodates the power dissipation limits defined by the junction-to-ambient resistance.

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

This component belongs to the AZ1117 series of low dropout three-terminal regulators manufactured by Diodes Incorporated. The series offers various fixed voltage options and an adjustable version, available in multiple industry-standard packages including SOT223, SOT89, and TO263. The D-series specifically denotes the TO-252-2 package variant designed for surface-mount applications.

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

The datasheet explicitly recommends using AZ1117C or AZ1117I variants instead of the original AZ1117 series for new designs due to obsolescence notices found in the documentation.