AP78L05SG-13

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

The AP78L05SG-13 is a three-terminal positive linear voltage regulator from the AP78LXX series manufactured by Diodes Incorporated. It provides a fixed output voltage of 5V with an output current capability exceeding 100mA. The device operates within an input voltage range of 7V to 20V and maintains output voltage tolerances of ±5% over the operating temperature range. It features internal thermal overload protection, short-circuit current limiting, and safe area protection for the output transistors. The component is housed in a plastic SO-8 low-profile package and is RoHS compliant.

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

• Integrated thermal overload protection prevents damage due to excessive junction temperature.
• Internal short-circuit current limiting restricts peak output current to safe values.
• Output transistor safe area protection reduces short-circuit current as voltage across the pass transistor increases.

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

• Communication equipment
• CD-ROM drives
• DVD players
• Set-top boxes

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

Verify that the specific part number matches the required SO-8 package configuration and tape-and-reel packaging format. Confirm compliance with environmental directives such as RoHS and ensure the supplier source is authorized to prevent counterfeit components. Check datasheet revisions for any updates regarding pin assignments or electrical characteristics before finalizing procurement specifications.

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

Select this regulator when a fixed 5V output is required with moderate current demands up to 100mA. Ensure the input voltage remains within the specified 7V to 20V range to maintain proper line regulation. Consider the SO-8 package for surface-mount applications requiring low profile. Verify thermal management requirements based on the junction-to-ambient thermal resistance for the specific PCB layout.

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

This component belongs to the AP78LXX series of three-terminal positive regulators, which also includes variants with 8V and 12V outputs. The series is designed to replace Zener diode/resistor combinations, offering improved output impedance and lower quiescent current. Available packages include TO92, SOT89, and SO-8, catering to various mounting and thermal dissipation needs in solid-state electronic equipment.

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

Direct replacements may include other 5V linear regulators from the same family or compatible parts from other manufacturers, provided they meet the 100mA output current and SO-8 package constraints. Verify pin compatibility and thermal performance characteristics before substitution.