AZ1084CD-3.3TRG1

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

The AZ1084CD-3.3TRG1 is a fixed positive low-dropout linear regulator manufactured by Diodes Incorporated, delivering a nominal output voltage of 3.3V with a maximum continuous load current of 5A. The device operates within an input voltage range up to 12V and features a typical dropout voltage of 1.35V at full load. It incorporates on-chip thermal limiting and current limiting circuits for protection against overload conditions. The component is housed in a surface-mount TO-252-2 package and is designed for operation across a junction temperature range from 0°C to +125°C.

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

• Integrated thermal limiting and current limiting circuits protect the device against excessive junction temperatures and overloads.
• Fixed output version integrates internal adjust resistors to provide a stable 3.3V supply without external feedback components.
• Compatible with low ESR ceramic capacitors for stable operation in switching applications.

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

• Post-regulation for switching supplies
• Microprocessor power supplies
• Battery chargers
• Desktop PC and embedded processor power systems

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

Verify that the received component matches the specific marking ID 'AZ1084CD-3.3G1' to confirm the 3.3V fixed output variant. Ensure the package corresponds to the specified TO-252-2 configuration. Confirm RoHS compliance status as the device is lead-free and halogen/antimony free. Validate moisture sensitivity level (MSL 3) handling requirements during assembly.

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

Select this component when a high-current 3.3V rail is required with minimal voltage drop under heavy loads. The integrated design eliminates the need for external adjustment resistors found in adjustable versions. Consider the thermal resistance characteristics for heat dissipation planning in enclosed environments.

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

This part belongs to the AZ1084C series of 5A low-dropout regulators. It shares functional similarities with other fixed-voltage variants such as the 1.5V, 1.8V, 2.5V, and 5.0V options within the same family. The primary distinction lies in the internal resistor network setting the specific output voltage.

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

Direct substitutes include other AZ1084CD-3.3 variants with different package options like TO-263 or TO-220 if pin compatibility allows. Cross-reference with generic 5A LDOs only if electrical parameters and thermal performance are strictly matched.

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

Does the AZ1084CD-3.3TRG1 require external resistors for voltage setting?

No, the fixed 3.3V version integrates the necessary adjust resistors internally, requiring no external feedback network.

What protection mechanisms are included in this regulator?

The device includes on-chip thermal limiting to prevent overheating and a current-limiting circuit to protect against short circuits and overloads.