AZ1117EH-5.0TRG1

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

The AZ1117EH-5.0TRG1 is a discontinued low-dropout three-terminal linear regulator from the AZ1117E series, manufactured by Diodes Incorporated. It provides a fixed 5.0V output with a maximum current capability of 1.0A and a typical dropout voltage of 1.1V at full load. The device operates within an input voltage range up to 13V and features a junction temperature range of -40°C to +125°C. Key electrical characteristics include a quiescent current of 3.5mA, power supply rejection ratio (PSRR) of 70dB, and thermal shutdown protection. It is housed in an industry-standard SOT-223 package.

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

• Optimized for low-voltage applications requiring excellent transient response and minimal input voltage headroom.
• Integrated trimmed bandgap reference ensures high output voltage accuracy within ±1% tolerance.
• Includes on-chip current limiting and thermal shutdown mechanisms to protect against overload conditions.
• Compatible with low ESR MLCC capacitors, eliminating the need for additional stabilization components.

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 the manufacturer. Verify availability through secondary market channels or authorized distributors handling excess stock. Confirm that the specific ordering suffix matches the required package and environmental compliance standards. Ensure replacement strategies are evaluated due to end-of-life status.

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

Select this part only if legacy compatibility with the AZ1117E series is strictly required. Consider the AZ1117C series as a direct functional alternative for new designs. Evaluate whether the fixed 5.0V output meets system requirements without external adjustment resistors. Assess thermal management needs given the SOT-223 package constraints.

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

The AZ1117E series represents a specific generation of low-dropout regulators designed for cost-sensitive consumer electronics. This model belongs to the fixed-output subset, integrating internal feedback resistors for simplified circuit design. It targets applications where board space is limited and standard surface-mount packaging is preferred over through-hole alternatives.

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

Public datasheets explicitly recommend using the AZ1117C series as the designated replacement for the discontinued AZ1117E family.

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

What is the typical dropout voltage for this regulator?

The typical dropout voltage is specified at 1.1V when operating under a 1.0A current load.

Does this device require external capacitors for stability?

Yes, a minimum of 1.0μF input and output ceramic capacitors are required, with output capacitor ESR less than 1.5Ω.

How is the output voltage accuracy maintained?

Accuracy is maintained through a trimmed bandgap reference circuit, ensuring the output remains within ±1% of the nominal value.