AZ1117CH2-3.3TRG1

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

The AZ1117CH2-3.3TRG1 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 continuous output current of 1A. The device features a typical dropout voltage of 1.2V at an output current of 0.8A and maintains a ripple rejection ratio (PSRR) of 70dB at 120Hz. It operates within a junction temperature range of -20°C to +125°C and utilizes a SOT-223-3 surface-mount package.

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

• Integrated trimmed bandgap reference ensures output voltage accuracy within ±1%.
• On-chip thermal shutdown protects against excessive junction temperatures caused by high current or ambient heat.
• Current limit circuitry prevents damage during overload conditions.
• 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 the specific suffix 'H2' in the part number AZ1117CH2-3.3TRG1 against official manufacturer documentation to confirm pinout configuration and marking details. Ensure that the selected component matches the required SOT-223-3 package dimensions and lead finish specifications defined in the datasheet. Confirm compliance with RoHS 3 standards if environmental regulations apply to the final assembly.

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

Select this regulator when a fixed 3.3V supply is required with up to 1A load capability. Verify that the input voltage remains within the 15V maximum rating while maintaining sufficient headroom above the dropout voltage. Consider the thermal resistance characteristics of the SOT-223 package to ensure adequate heat dissipation under expected operating loads and ambient temperatures.

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

This component is part of the AZ1117C family of low dropout three-terminal regulators designed for applications where transient response and minimum input voltage are critical. The series includes various fixed voltage options and an adjustable version, all sharing common protection features like current limiting and thermal shutdown across different industry-standard packages.

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

AZ1117CH-3.3TRG1