AZ1117IH-2.5TRG1

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

The AZ1117IH-2.5TRG1 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated, providing a nominal 2.5V output with a maximum continuous current of 1A. It operates within an industrial junction temperature range of -40°C to +125°C and features a typical dropout voltage of 1.2V at 800mA load in the SOT-223 package. The device incorporates on-chip thermal shutdown and current limiting for protection, achieving a ripple rejection ratio of 70dB at 120Hz. Output voltage accuracy is maintained within ±1% across the operating temperature range.

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

• Integrated trimmed bandgap reference ensures precise output voltage regulation without external resistors
• Built-in thermal shutdown and current limit circuitry protect against excessive junction temperatures and overload conditions
• Compatible with low ESR ceramic capacitors for stable operation and transient response

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

• USB peripheral devices
• Add-on expansion cards
• DVD players
• PC motherboard power distribution

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

Verify that the ordering suffix 'H' corresponds to the specified SOT-223 package variant as documented in the manufacturer's official ordering guide. Confirm compliance with RoHS 3 and halogen-free requirements if mandated by project specifications. Ensure input voltage does not exceed the absolute maximum rating of 18V during system testing.

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

Select this component when a fixed 2.5V rail is required under industrial temperature constraints. Verify that the available input-to-output voltage differential supports the expected dropout characteristics at peak load currents. Evaluate PCB copper area for thermal dissipation to ensure the junction temperature remains within the recommended operating limits during continuous operation.

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

This part belongs to the AZ1117I series of three-terminal regulators designed for applications where minimum input voltage and transient response are critical. The series includes various fixed voltage options and an adjustable version, all sharing common internal protection mechanisms and optimized for use with standard surface-mount packages.

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

AZ1117ID-2.5TRG1 (TO252-2 Package)

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

What is the maximum input voltage allowed for this regulator?

The absolute maximum input voltage rating is 18V.

Does the AZ1117IH-2.5TRG1 require external feedback resistors?

No, the fixed output versions integrate the adjust resistors internally.