AZ1117ID-ADJTRG1

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

The AZ1117ID-ADJTRG1 is a low dropout linear regulator from Diodes Incorporated, designed for industrial temperature ranges. It operates with an input voltage up to 15V and delivers an adjustable output voltage set by external resistors. The device supports a maximum output current of 1A and features a typical current limit of 1.35A. Electrical characteristics include a ripple rejection of 70dB at 120Hz and a quiescent current of 6mA. It utilizes SOT223 or TO252-2 packages.

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

• Integrated thermal shutdown protects against excessive junction temperatures caused by high current or ambient heat.
• Optimized for low voltage applications requiring fast transient response and minimal input voltage headroom.
• 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 package type (SOT223 or TO252-2) matches the design requirements. Confirm the industrial temperature range (-40°C to +125°C) aligns with operational needs. Ensure external resistor values are calculated correctly for the desired output voltage. Check RoHS compliance status if required by project specifications.

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

Select this component when an adjustable output voltage is needed within the industrial temperature range. Consider the TO252-2 package for better thermal dissipation compared to SOT223. Verify that the load current does not exceed the 1A continuous rating. Ensure the input-to-output differential voltage remains within specified limits for optimal regulation.

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

This part belongs to the AZ1117I series, which includes fixed voltage options like 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5.0V. The ADJ variant allows flexible voltage setting via two external resistors. The series is characterized by its low dropout performance and robust protection features suitable for general-purpose power management.

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

AZ1117IH-ADJTRG1

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

What is the reference voltage for the adjustable version?

The reference voltage is typically 1.250V, with a range of 1.225V to 1.275V under standard operating conditions.

How is the output voltage determined in the ADJ version?

The output voltage is set using two external resistors connected between the output, ground, and the adjust pin according to the formula VOUT = VREF * (1 + R2/R1).