AZ1117CR-1.8TRG1

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

The AZ1117CR-1.8TRG1 is a low dropout three-terminal linear regulator from the AZ1117C series, manufactured by Diodes Incorporated. It provides a fixed output voltage of 1.8V with a maximum output current of 0.8A and operates within an input voltage range up to 15V. The device features a typical ripple rejection ratio of 70dB at 120Hz and maintains an output voltage accuracy of ±1%. It incorporates on-chip thermal shutdown and current limit protection, functioning reliably across a junction temperature range of -20°C to +125°C.

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

• Integrated trimmed bandgap reference ensures precise output voltage regulation.
• On-chip thermal shutdown protects against excessive junction temperatures during overload conditions.
• Current limiting circuitry safeguards the device and load under short-circuit or high-load scenarios.
• Compatible with low ESR ceramic capacitors for stable operation.

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

• USB devices
• Add-on cards
• DVD players
• PC motherboards

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

Verify that the component matches the specific package type SOT89 and the fixed 1.8V output designation. Confirm compliance with RoHS 3 and Halogen-free requirements as specified in the datasheet. Ensure the ordering suffix TRG1 corresponds to the tape and reel packaging format required for automated assembly processes.

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

Select this regulator when a stable 1.8V supply is required for low-voltage digital circuits. The SOT89 package offers a balance between thermal performance and board space efficiency. Verify that the input-to-output voltage differential remains sufficient to maintain regulation while accounting for the dropout voltage characteristics under expected load currents.

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

This component belongs to the AZ1117C family of low dropout linear regulators designed for applications where transient response and minimum input voltage are critical. The 'CR' suffix indicates the SOT89 surface-mount package variant, distinguishing it from other package options like SOT223 or TO252 available within the same product line.

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

Direct substitutes include other part numbers within the AZ1117C series such as AZ1117CH-1.8TRG1 (SOT223 package) or AZ1117CD-1.8TRG1 (TO252 package), provided the physical footprint and pinout compatibility are verified for the specific PCB design constraints.