AZ1117CH-3.3TRG1

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

The AZ1117CH-3.3TRG1 is a positive fixed-output low dropout linear regulator from the AZ1117C series, manufactured by Diodes Incorporated. It provides a nominal output voltage of 3.3V with a maximum output current of 1A. The device features a typical dropout voltage of 1.2V at 800mA and a maximum input voltage rating of 15V. Electrical characteristics include a ripple rejection ratio of 70dB at 120Hz and a quiescent current of 6mA. It operates within a junction temperature range of -20°C to +125°C and utilizes an SOT-223 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 function safeguards the device 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 that the component matches the specific Diodes Incorporated part number AZ1117CH-3.3TRG1. Confirm the SOT-223 package type and the 3.3V fixed output specification. Ensure compliance with RoHS 3 and lead-free requirements as stated in the datasheet. Check for any specific automotive qualification needs, as standard parts are not AEC-Q100 qualified unless explicitly noted.

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

Select this regulator when a stable 3.3V supply is required for loads up to 1A. The SOT-223 package offers efficient thermal dissipation compared to smaller packages. Consider the 1.2V typical dropout voltage for input voltage headroom calculations. Verify that the application environment stays within the -20°C to +125°C operating temperature range.

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

This component belongs to the AZ1117C series of low dropout linear regulators. The series includes various fixed output voltages (1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5.0V) and an adjustable version. The 'H' suffix indicates the SOT-223 package option, while 'TRG1' denotes the tape and reel packaging format.

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

Direct substitutes within the same family include AZ1117CH-ADJTRG1 (adjustable), AZ1117CH-5.0TRG1, and other fixed voltage variants in the SOT-223 package. Cross-manufacturer equivalents may exist but require verification of pinout, electrical parameters, and thermal characteristics.