AZ1117S-3.3E1

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

The AZ1117S-3.3E1 is a positive fixed linear regulator from the AZ1117 series, manufactured by Diodes Incorporated. It provides a fixed output voltage of 3.3V with a maximum output current of 1.25A. The device features a maximum input voltage rating of 15V and a typical dropout voltage of 1.25V at 1A load. It includes internal thermal shutdown and current limiting protection. The component operates within a junction temperature range of -40°C to +125°C and is housed in a TO-263-3 (D²Pak) surface-mount package.

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

• Provides stable 3.3V fixed output for power supply applications
• Integrates thermal shutdown and current limiting for circuit protection
• Utilizes a trimmed bandgap reference for accurate voltage regulation

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

• Battery-powered equipment requiring efficient voltage regulation
• Post-regulation for switching power supplies
• General-purpose power management in embedded systems

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

Verify the specific suffix 'E1' against the manufacturer's latest datasheet to confirm RoHS compliance status and exact pinout configuration. Ensure the ordering part number matches the required TO-263 package variant. Cross-reference the manufacturer's official documentation for any recent design changes or lifecycle updates before finalizing procurement.

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

Select this component when a fixed 3.3V output is required with up to 1.25A capacity in a surface-mount form factor. Consider the 15V maximum input voltage limit and the thermal performance requirements associated with the D²Pak package. Verify that the application's ambient temperature and heat dissipation capabilities align with the specified operating junction temperature range.

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

This device belongs to the AZ1117 family of low dropout linear regulators designed for high-current applications. The series offers various fixed output voltages and adjustable options across multiple package types including TO-220, SOT-223, and TO-263. The AZ1117S variant specifically targets surface-mount assembly needs while maintaining the series' core performance characteristics.

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

Direct substitutes include other AZ1117 variants with identical electrical specifications but different packages, such as AZ1117T-3.3E1 for through-hole applications. Cross-brand equivalents like AMS1117-3.3 may be considered if pin compatibility and thermal performance are verified.