AZ1086D-ADJTRG1

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

The AZ1086D-ADJTRG1 is an adjustable positive low dropout linear regulator manufactured by Diodes Incorporated, originally developed by BCD Semiconductor. It operates within a junction temperature range of 0 to 125°C and utilizes a TO-252-2 package configuration. The device provides a maximum output current of 1.5A with a typical dropout voltage of 1.3V at full load. Electrical specifications include a reference voltage of 1.25V (typical), line regulation of 0.015% (typical), and load regulation of 0.1% (typical). The part features a current limit of 2.3A and thermal shutdown protection at 165°C.

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

• Integrates on-chip thermal shutdown and current limiting circuitry for robust protection against overload conditions.
• Utilizes a bandgap reference to maintain stable output voltage settings via two external resistors.
• Delivers high efficiency performance characterized by low dropout voltage capabilities under heavy load currents.

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

• Post regulation for switching power supplies
• Microprocessor power supply circuits
• Motherboard power distribution systems
• Telecom equipment power management
• Set top boxes and web box modules

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

Verify the specific ordering suffix G1 indicates availability in green packages when sourcing this component. Confirm that the D package designation corresponds to the TO-252-2 form factor required for the target PCB layout. Ensure compliance with RoHS standards associated with the E1 or G1 designations during procurement planning.

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

Select this component for applications requiring adjustable output voltages up to 1.5A with moderate precision requirements. Consider the thermal resistance characteristics of the TO-252-2 package for heat dissipation calculations. Evaluate the need for external capacitors to ensure stability and adequate ripple rejection performance at the operating frequency.

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

This part belongs to the AZ1086 series of low dropout positive voltage regulators. The series includes fixed voltage versions such as 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, and 5.0V, which integrate internal adjust resistors. The adjustable variant allows for custom voltage setting using external components, offering flexibility in power supply design compared to fixed-output counterparts.

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

AZ1086D-ADJTRE1

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

How is the output voltage determined for the adjustable version?

The output voltage is set using two external resistors connected to the ADJ pin, following the formula VOUT = VREF * (1 + R2/R1) + IADJ * R2.

What is the thermal shutdown threshold for this regulator?

The device enters thermal shutdown mode when the junction temperature reaches 165°C, with a hysteresis of 30°C.