AZ1117R-1.2TRE1

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

The AZ1117R-1.2TRE1 is a positive fixed-output linear regulator from Diodes Incorporated, delivering 1.2V at up to 1A output current. It operates with an input voltage range of 3.2V to 15V and features a typical dropout voltage of 1.15V at full load. The device incorporates a trimmed bandgap reference for precise regulation and includes on-chip thermal shutdown and current limiting protections. It is housed in a surface-mount SOT-89-3 package and supports an operating junction temperature range from -40°C to +125°C.

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

• Provides low dropout voltage performance of 1.15V at 1A output current
• Includes on-chip thermal shutdown and trimmed current limiting protection
• Features a trimmed bandgap reference ensuring high output voltage accuracy

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

• PC Motherboard power distribution
• LCD Monitor voltage regulation
• Graphic Card auxiliary power supplies
• DVD-video Player circuitry
• ADSL Modem power management

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

Verify the specific suffix 'R' corresponds to the SOT-89-3 package configuration as defined in the manufacturer's ordering information. Confirm RoHS compliance status by referencing the official Diodes Incorporated documentation. Ensure the component marking ID matches the datasheet specifications for the 1.2V fixed version to validate authenticity and correct voltage setting.

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

Select this component when a stable 1.2V rail is required for loads drawing up to 1A. The SOT-89-3 package offers a compact footprint suitable for space-constrained designs. Consider the thermal resistance characteristics of the chosen package variant during PCB layout to ensure adequate heat dissipation under maximum load conditions within the specified temperature range.

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

This part belongs to the AZ1117 series of low dropout three-terminal regulators manufactured by Diodes Incorporated. The series provides various fixed output voltages and adjustable versions across multiple industry-standard packages including SOT223, TO220-3, and TO263. The AZ1117R-1.2TRE1 specifically utilizes the SOT-89-3 form factor for surface mount assembly.

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

The datasheet explicitly states that the AZ1117 series is not recommended for new design and advises using AZ1117C or AZ1117I instead.