AZ1117CR-ADJTRG1

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

The AZ1117CR-ADJTRG1 is a low dropout three-terminal linear regulator from Diodes Incorporated, optimized for applications where transient response and minimum input voltage are critical. It features an adjustable output voltage set by two external resistors, with a reference voltage of 1.25V. The device provides current limiting (typical 1.35A) and on-chip thermal shutdown protection. It operates within a junction temperature range of -20°C to +125°C, supports a maximum input voltage of 15V, and delivers up to 800mA output current. The part is housed in a SOT89 surface-mount package.

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

• Adjustable output voltage configuration using external resistors
• Integrated current limit and thermal shutdown protection
• Compatible with low ESR ceramic capacitors
• Trimmed bandgap reference ensuring high voltage accuracy

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 the specific ordering suffix TRG1 corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the SOT89 package variant matches the footprint specifications of the target PCB design. Ensure compliance with RoHS and lead-free requirements if mandated by the end-product regulations. Cross-reference the manufacturer's latest datasheet revision to validate electrical characteristics against the production batch.

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

Select this component when an adjustable voltage rail is required alongside robust overcurrent and thermal protection capabilities. The SOT89 package offers a compact solution suitable for space-constrained designs. Consider the dropout voltage characteristics at the intended load current to ensure sufficient headroom between input and output voltages. Verify that the external resistor network selected for voltage setting falls within the recommended operating conditions for stability and accuracy.

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

This part belongs to the AZ1117C series of low dropout linear regulators manufactured by Diodes Incorporated. The series includes fixed voltage options such as 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V, as well as the adjustable version represented here. The CR suffix indicates the SOT89 package type, distinguishing it from other package options like SOT223 or TO252 available within the same family.

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

AZ1117CH-ADJTRG1

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

How is the output voltage determined for the AZ1117CR-ADJTRG1?

The output voltage is adjustable and must be set using two external resistors connected to the ADJ pin.

What protection features are integrated into this regulator?

The device includes on-chip current limiting and thermal shutdown to protect against excessive junction temperatures caused by high current or ambient heat.