AP78L08YG-13

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

The AP78L08YG-13 is a three-terminal positive linear regulator from the AP78LXX series by Diodes Incorporated. It provides a fixed output voltage of 8V with an output current capability exceeding 100mA. The device operates within an input voltage range of 10.5V to 23V and maintains an output voltage tolerance of ±5% over the operating temperature range. It features internal thermal overload protection, short-circuit current limiting, and safe area protection for output transistors. The component is housed in a SOT-89 package.

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

• Integrated thermal overload protection prevents damage from excessive junction temperatures.
• Internal short-circuit current limiting restricts peak output current to safe levels.
• 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 the specific package type matches the design requirements, as the AP78LXX series is available in TO92, SO-8, and SOT-89 configurations. Confirm that the ordering suffix corresponds to the desired packaging format, such as tape and reel for the YG variant. Ensure compliance with RoHS directives if applicable to the manufacturing process. Check for any recent product change notifications or end-of-life announcements before finalizing procurement plans.

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

Select this regulator when a fixed 8V output is required with moderate current demands up to 100mA. Consider the SOT-89 package for surface-mount applications requiring adequate heat sinking. Evaluate the input voltage range to ensure it stays within the recommended 10.5V to 23V limits for proper line regulation. Verify that the ambient temperature conditions fall within the specified operating range to maintain performance and reliability.

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

The AP78L08YG-13 belongs to the AP78LXX series of three-terminal positive regulators, which also includes variants for 5V and 12V outputs. This series is designed to replace Zener diode/resistor combinations, offering improved output impedance and lower quiescent current. The components are suitable for logic systems, instrumentation, and solid-state electronic equipment where local on-card regulation is beneficial.

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

Direct replacements may include other 8V LDO regulators from different manufacturers, provided they match the pinout and electrical characteristics. Verify compatibility with the existing PCB layout, especially regarding the SOT-89 package dimensions. Ensure that alternative components offer similar protection features and operate within the same voltage and current specifications.

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

What is the minimum input voltage required for the AP78L08YG-13?

The minimum input voltage required to maintain line regulation is 10.5V.

Does the AP78L08YG-13 have built-in protection features?

Yes, it includes internal thermal overload protection, short-circuit current limiting, and output transistor safe area protection.

What is the maximum output current for this regulator?

The regulator can deliver an output current in excess of 100mA.