AZ1117ID-3.3TRG1

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

The AZ1117ID-3.3TRG1 is a positive fixed-output low dropout linear regulator manufactured by Diodes Incorporated, designed for industrial applications with an operating junction temperature range of -40°C to +125°C. It provides a nominal output voltage of 3.3V with ±1% accuracy and supports up to 1A continuous output current. The device features a typical dropout voltage of 1.3V at 800mA and includes integrated current limit and thermal shutdown protection. Packaged in the industry-standard TO252-2 surface-mount format, it offers a ripple rejection ratio of 70dB at 120Hz.

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

• Integrated trimmed bandgap reference ensures precise output voltage regulation within specified tolerances across the full industrial temperature range.
• Built-in current limiting and on-chip thermal shutdown mechanisms protect the device against overload conditions and excessive junction temperatures.
• Compatible with low ESR ceramic capacitors, simplifying external component selection while maintaining stability and transient response performance.

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

• USB peripheral devices
• Add-on expansion cards
• DVD players
• PC motherboards

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

Verify that the specific part number matches the required industrial temperature grade (-40°C to +125°C) and the TO252-2 package style. Confirm compliance with RoHS 3 and lead-free specifications as defined by the manufacturer. Ensure the ordering suffix corresponds to the tape and reel packaging configuration intended for automated assembly processes.

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

Select this component when a stable 3.3V rail is required under industrial environmental conditions. The TO252-2 package provides adequate thermal dissipation for high-current loads without requiring external heatsinks in many standard PCB layouts. Verify that input voltage remains within the 15V maximum rating and that output capacitance meets the minimum requirements for stability.

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

This device belongs to the AZ1117I series, which distinguishes itself from commercial variants through its extended industrial temperature rating. The series utilizes a BJT-based architecture optimized for low voltage operation where transient response and minimum input voltage margins are critical design constraints.

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

AZ1117IH-3.3TRG1

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

What is the maximum input voltage allowed for the AZ1117ID-3.3TRG1?

The recommended operating condition specifies a maximum input voltage of 15V, although absolute maximum ratings allow up to 18V.

Does the AZ1117ID-3.3TRG1 require an external capacitor for stability?

Yes, a minimum output capacitance of 10µF is required, and the device is compatible with low ESR ceramic capacitors provided the ESR is less than 20Ω.