AZ1117BH-1.2TRE1

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

The AZ1117BH-1.2TRE1 is a positive fixed linear regulator from the AZ1117 series by Diodes Incorporated, housed in an SOT-223-3 package. It provides a fixed output voltage of 1.2V with a maximum continuous output current of 1A. The device supports a maximum input voltage of 15V and exhibits a typical dropout voltage of 1.25V at full load. Key electrical characteristics include a quiescent current of 10 mA and a power supply rejection ratio (PSRR) of 75 dB at 120 Hz. It operates within a junction temperature range of -40°C to +125°C.

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

• Integrated trimmed bandgap reference ensures high output voltage accuracy.
• Built-in thermal shutdown protection prevents damage during overload conditions.
• Current limiting function safeguards against short circuits and excessive loads.

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

• Battery-powered portable electronic devices requiring efficient voltage regulation.
• General-purpose low-dropout power supply circuits for embedded systems.
• Post-regulation stages for switching power supplies to reduce noise.

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

Verify the specific suffix 'BH' against the official Diodes Incorporated datasheet to confirm the exact output tolerance and package variant, as suffixes define critical manufacturing specifications. Ensure the ordering part number matches the required tape-and-reel packaging format. Cross-reference the manufacturer's latest documentation to validate availability and any potential design changes or obsolescence notices before finalizing procurement.

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

Select this component when a stable 1.2V rail is needed with up to 1A load capability in a compact surface-mount footprint. Consider the 1.25V dropout voltage to ensure sufficient input-output differential under all operating conditions. Evaluate the 10 mA quiescent current impact on overall system efficiency, particularly in battery-operated applications where lower standby consumption may be prioritized over higher current capacity.

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

This device belongs to the AZ1117 family of low dropout linear regulators designed for cost-sensitive and space-constrained applications. The series offers various fixed voltage options and adjustable versions across multiple industry-standard packages including TO-252, SOT-89, and SOT-223. These regulators are engineered to replace traditional three-terminal adjustable regulators while providing improved performance and ease of implementation in modern power management designs.

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

Direct pin-compatible alternatives within the same series include other AZ1117 variants with different output voltages or package types, such as AZ1117H-1.2TRE1 if package distinctions apply. Verify that substitute parts maintain identical thermal characteristics and current handling capabilities to ensure circuit compatibility without redesign.

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

What is the maximum input voltage supported by the AZ1117BH-1.2TRE1?

The maximum input voltage supported by this regulator is 15V.

Does the AZ1117BH-1.2TRE1 include protection features?

Yes, it includes built-in thermal shutdown and current limiting protection functions.