AZ1117D-1.2TRE1

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

The AZ1117D-1.2TRE1 is a fixed positive linear regulator from Diodes Incorporated, delivering a nominal 1.2V output at up to 1A current in a TO252-2 (3) surface-mount package. It features a typical dropout voltage of 1.15V at full load and maintains output accuracy within 2%. The device incorporates a trimmed bandgap reference, adjustable current limiting, and on-chip thermal shutdown for protection against overload conditions.

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

• Integrated thermal shutdown prevents excessive junction temperature during overload or high ambient conditions
• Trimmed current limit ensures specified output current capability with controlled short-circuit behavior
• Bandgap reference circuitry provides stable output voltage regulation across the operating temperature range

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

• PC Motherboard power distribution
• LCD Monitor supply rails
• Graphic Card auxiliary power
• DVD-video Player logic supplies
• ADSL Modem peripheral circuits

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

Verify that the specific part number matches the required TO252-2 (3) package and 1.2V fixed output configuration. Confirm RoHS compliance status as indicated by the E1 suffix. Ensure the ordering code aligns with the manufacturer's current datasheet revision DS36736 Rev. 5 - 3 to avoid obsolete variants.

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

Select this component when a fixed 1.2V rail is required with 1A capacity in a compact SMD footprint. Consider the 1.15V dropout characteristic relative to the minimum input voltage available in the system. Evaluate thermal dissipation requirements based on the junction-to-ambient resistance of the TO252-2 package under expected load conditions.

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

This device 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, packaged in industry-standard formats including SOT223, SOT89, TO220-3, and TO263. The D-series specifically denotes the TO252-2 package family.

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

Diodes Incorporated recommends using AZ1117C or AZ1117I series parts instead of the legacy AZ1117D designation for new designs.