AZ1117CR2-3.3TRG1

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

The AZ1117CR2-3.3TRG1 is a positive fixed-output low dropout linear regulator manufactured by Diodes Incorporated, belonging to the AZ1117C series. It provides a nominal output voltage of 3.3V with a maximum output current of 800mA. The device operates within an input voltage range up to 15V and features a typical dropout voltage of 1.2V at 800mA load. Electrical performance includes a ripple rejection ratio of 70dB at 120Hz and a maximum quiescent current of 6mA. It utilizes a SOT89 package and supports an operating junction temperature range from -20°C to +125°C.

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

• Integrated trimmed bandgap reference ensures high output voltage accuracy within ±1% tolerance.
• On-chip thermal shutdown circuitry protects against excessive junction temperatures caused by high current or ambient heat.
• Compatible with low ESR ceramic capacitors for stable operation in compact designs.
• Includes built-in current limiting to safeguard the device under overload conditions.

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 'R2' corresponds to the required SOT89 pinout option, as the datasheet distinguishes between Option 1 and Option 2 for this package type. Confirm that the component meets RoHS 3 compliance standards and is halogen-free if environmental regulations apply to your manufacturing process. Ensure the selected package variant matches the PCB footprint layout provided in the official documentation.

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

Select this component when a fixed 3.3V supply is required with moderate current demands up to 800mA. It is suitable for applications where transient response and minimum input voltage constraints are critical. Consider the thermal resistance characteristics of the SOT89 package to ensure adequate heat dissipation without external heatsinks under expected load conditions.

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

This part belongs to the AZ1117C family of low dropout regulators designed for low-voltage applications. The series offers various fixed output voltages including 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V, alongside adjustable versions. The AZ1117C series is optimized for stability with ceramic capacitors and integrates protection features like thermal shutdown and current limiting for robust system performance.

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

Public confirmed substitute part numbers: AZ1117CR-3.3TRG1 (SOT89 Option 1), AZ1117CH-3.3TRG1 (SOT223). Verify pinout compatibility before substitution.

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

What is the maximum output current capability of the AZ1117CR2-3.3TRG1?

The device provides a maximum output current of 800mA.

Does the AZ1117CR2-3.3TRG1 require external resistors for voltage setting?

No, the fixed output version integrates the adjust resistors internally, eliminating the need for external components to set the voltage.