AS78L12ZTR-E1

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

The AS78L12ZTR-E1 is a three-terminal positive linear voltage regulator from the AS78LXX series by Diodes Incorporated. It provides a fixed 12V output with a maximum current of 100mA and operates within an input voltage range up to 36V. The device features internal short circuit current limiting, thermal overload protection, and safe-area compensation. It is housed in a TO-92 package (Ammo Packing) and supports an operating junction temperature range from -40°C to +125°C.

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

• Integrated internal short circuit current limiting and thermal overload protection for robust operation under overload conditions.
• Safe-area compensation ensures stability without requiring external components.
• Compliant with RoHS standards and manufactured as a lead-free, halogen-free, and antimony-free green device.

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

• Consumer electronics
• Microprocessor power supplies
• Mother boards

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

Verify that the ordering suffix 'E1' confirms the component is lead-free and compliant with EU RoHS directives. Confirm the 'ZTR' designation corresponds to the TO-92 Ammo Packing format rather than bulk packaging. Ensure the specific part number matches the required 12V fixed output configuration before finalizing procurement orders.

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

Select this component when a fixed 12V regulation is required for local on-card applications. Consider the TO-92 package for through-hole mounting requirements. Evaluate the thermal resistance characteristics against expected power dissipation levels at maximum load currents to ensure reliable performance across the specified industrial temperature range.

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

This component belongs to the AS78LXX series of 100mA positive voltage regulators designed for general-purpose local regulation. The series includes variants offering 5V, 12V, and 15V outputs. These regulators are engineered to be virtually immune to output overloads due to their comprehensive internal protection circuits.

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

AS78L12Z-E1

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

What is the function of the safe-area compensation feature?

Safe-area compensation protects the output transistor from damage during high-voltage or high-current stress conditions, ensuring the device remains stable without external components.

How does the device handle thermal overload?

The regulator incorporates internal thermal overload protection that shuts down the device if the junction temperature exceeds safe limits, automatically restarting regulation once the temperature cools.