AS78L12R-E1

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

The AS78L12R-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. The device features internal short-circuit current limiting and thermal overload protection, ensuring immunity to output overloads. It operates within an input voltage range up to 36V and supports a junction temperature range from -40°C to +125°C. The component is housed in an SOT-89 surface-mount package.

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

• Internal short-circuit current limiting protects against output overload conditions
• Integrated thermal shutdown prevents damage during excessive heat generation
• Safe-area compensation ensures stable operation under varying load conditions

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

• Local on-card voltage regulation
• Distributed single-source power systems
• General-purpose voltage regulation circuits

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

Verify the specific suffix 'R' corresponds to the SOT-89 package configuration as documented in official Diodes Incorporated datasheets for the AS78LXX series. Confirm that the '-E1' designation aligns with RoHS compliance requirements specified in the manufacturer's environmental statements. Cross-reference ordering information directly with the supplier to ensure accurate part identification before procurement.

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

Select this component when a fixed 12V output at 100mA is required in a compact surface-mount form factor. Ensure the input voltage does not exceed the 36V maximum rating. Consider the thermal performance characteristics if operating near the upper limits of the specified temperature range or current capacity.

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

This regulator belongs to the AS78LXX series of three-terminal positive regulators designed for various applications including local on-card regulation. The series offers fixed output voltages such as 5V, 12V, and 15V with an accuracy of ±5% over the full temperature range. These devices are complete with internal current limiting and thermal shutdown protection, making them virtually immune from output overload.

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

Compatible substitutes include other AS78L12 variants from Diodes Incorporated, such as AS78L12MTR-G1 (SOIC-8) or AS78L12RTR-G1 (SOT-89), provided pinout compatibility and package dimensions are verified.