AZ1117H-ADJTRE1

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

The AZ1117H-ADJTRE1 is a low dropout linear regulator manufactured by Diodes Incorporated, housed in an SOT223 package. It provides an adjustable output voltage ranging from 1.25V to 12V using two external resistors. The device supports a maximum input voltage of 15V and delivers up to 1A of output current with a typical dropout voltage of 1.15V at full load. It features a reference voltage of approximately 1.25V, line regulation of 0.035%, and ripple rejection of 75dB at 120Hz. The component operates within a junction temperature range of -40°C to +125°C.

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

• Adjustable output voltage configuration utilizing only two external resistors
• Integrated thermal shutdown protection against excessive junction temperatures
• Trimmed current limiting for controlled short-circuit 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 'TRE1' corresponds to the Tape & Reel packaging format as documented in the manufacturer's ordering information. Confirm that the SOT223 package variant aligns with the required PCB footprint and thermal dissipation capabilities for the target application environment. Ensure compliance with RoHS directives if lead-free status is mandatory for the assembly process.

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

Select this component when an adjustable positive voltage rail between 1.25V and 12V is required with high current capability. The SOT223 package offers a balance of thermal performance and space efficiency compared to larger through-hole options. Consider the 1.15V dropout characteristic when designing for minimal voltage headroom between the input source and the desired regulated output level.

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

This part belongs to the AZ1117 series of 1A low dropout linear regulators produced by Diodes Incorporated. The series includes fixed voltage variants alongside the adjustable version. The H suffix specifically denotes the SOT223 surface-mount package option, which is distinct from other available packages like SOT89 or TO252 within the same product family.

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

The datasheet explicitly states that this model is not recommended for new designs and advises using AZ1117C or AZ1117I instead.