AZ1117EH-3.3TRG1

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

The AZ1117EH-3.3TRG1 is a discontinued low-dropout linear regulator from the AZ1117E series, manufactured by Diodes Incorporated. It provides a fixed 3.3V output with a maximum current of 1.0A in an SOT-223 package. The device features a typical dropout voltage of 1.1V at full load and includes integrated current limit and thermal shutdown protection. Electrical specifications include a quiescent current of 3.5mA, power supply rejection ratio of 70dB, and operation within a junction temperature range of -40°C to +125°C.

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

• Provides fixed 3.3V output with ±1% accuracy
• Integrates current limiting and thermal shutdown protection
• Compatible with low ESR MLCC capacitors for stability
• Optimized for low voltage applications requiring fast transient response

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

• TVs and LCD Monitors
• PC Peripherals including Notebooks and Motherboards
• Set-Top Boxes (STB)

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

This component is officially marked as obsolete and discontinued by Diodes Incorporated. Procurement must rely on third-party distributors or surplus inventory channels rather than direct manufacturer orders. Verify part authenticity and storage conditions carefully due to potential long-term availability constraints. Confirm that the specific ordering suffix matches required packaging and environmental compliance standards before acquisition.

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

Select this component only if legacy design compatibility requires the specific AZ1117E series characteristics. Evaluate whether the discontinued status aligns with long-term product lifecycle requirements. Consider alternative regulators from newer series if future production volume is anticipated. Ensure input voltage remains within the 13V maximum rating and verify PCB layout supports the SOT-223 thermal dissipation needs.

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

The AZ1117E series represents a line of 1.0A low-dropout three-terminal regulators designed for efficiency in low-voltage systems. The AZ1117EH-3.3TRG1 specifically denotes the 3.3V fixed output variant housed in an SOT-223 package with green compliant packaging. This series utilizes a trimmed bandgap reference to ensure precise voltage regulation under varying load and temperature conditions.

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

Diodes Incorporated explicitly recommends using the AZ1117C series as a substitute for the discontinued AZ1117E parts. Verify pinout compatibility and electrical parameter equivalence between the AZ1117C and AZ1117E series before implementing any replacement strategy in existing designs.