AZ1117H-3.3TRG1

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

The AZ1117H-3.3TRG1 is a fixed-output low dropout linear regulator manufactured by Diodes Incorporated, providing a stable 3.3V output with a maximum current capacity of 1A. It operates within an input voltage range up to 15V and features a typical dropout voltage of 1.15V at full load. The device incorporates a trimmed bandgap reference ensuring ±1% output voltage accuracy and includes on-chip thermal shutdown and current limiting for protection. It is housed in a SOT223 package and supports an operating junction temperature range from -40°C to +125°C.

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

• Integrated thermal shutdown circuitry protects against excessive junction temperatures caused by overload or high ambient conditions.
• Trimmed current limit ensures specified output current delivery while controlling short-circuit current levels.
• Utilizes a precision trimmed bandgap reference to maintain tight output voltage accuracy across operating conditions.

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

• PC Motherboard
• LCD Monitor
• Graphic Card
• DVD-video Player
• Telecom Equipment

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

Verify the specific suffix 'H' corresponds to the SOT223 package and 'E1' indicates RoHS compliance as defined in the manufacturer's ordering information. Confirm that the component meets the required environmental standards for your application, noting that this series is designated as not recommended for new design; consider verifying if updated variants are available for long-term supply assurance.

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

Select this component when a fixed 3.3V rail is required with up to 1A load capability in a surface-mount form factor. Ensure the input voltage remains within the 15V maximum limit and verify that the power dissipation calculations align with the thermal resistance characteristics of the SOT223 package under expected ambient temperatures.

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

This part belongs to the AZ1117 series of 1A low dropout linear regulators offered by Diodes Incorporated. The series provides both adjustable and fixed voltage options in various industry-standard packages including SOT223, SOT89, TO220-3, and TO252-2. The H suffix specifically identifies the SOT223 package variant within this family.

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

Datasheet explicitly recommends using AZ1117C or AZ1117I instead of the AZ1117 series for new designs.