UA78L08ACPK

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

The UA78L08ACPK is a fixed positive linear voltage regulator from the Texas Instruments UA78L series. It provides a fixed output voltage of 8V with a maximum output current of 100mA. The device operates within an input voltage range up to 23V and features a typical power supply rejection ratio (PSRR) of 46dB at 120Hz. It incorporates comprehensive protection mechanisms including overcurrent, thermal overload, reverse polarity, and short-circuit protection. The component is housed in a surface-mount SOT-89-3 package and supports an operating temperature range from 0°C to 125°C.

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

• Fixed 8V output configuration for stable voltage regulation
• Integrated protection against overcurrent, thermal overload, reverse polarity, and short circuits
• Surface-mount SOT-89-3 packaging for compact circuit board integration

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

• Battery-powered equipment requiring regulated 8V supply
• General-purpose power supplies
• On-card regulation modules

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

Verify the specific suffix 'G3' or absence thereof when sourcing, as it indicates RoHS compliance status. Confirm the SOT-89-3 package type matches your PCB footprint requirements. Ensure the supplier provides official datasheets to validate the 100mA current rating and 23V maximum input voltage specifications before finalizing procurement decisions.

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

Select this component when a fixed 8V output is required with moderate current demands up to 100mA. The SOT-89-3 package is suitable for space-constrained surface-mount designs. Consider the thermal performance under load, as the linear topology dissipates excess energy as heat. Verify that the input voltage remains within the specified 23V maximum limit to ensure reliable operation.

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

This part belongs to the UA78L family of three-terminal positive linear regulators. It serves as a low-current alternative to higher-power variants like the UA78M series. The UA78L08ACPK specifically targets applications needing an 8V rail in a small form factor, distinguishing itself from through-hole TO-92 versions by its surface-mount capability.

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

UA78L08ACPKG3

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

What is the maximum input voltage for the UA78L08ACPK?

The maximum input voltage is 23V.

Does the UA78L08ACPK include reverse polarity protection?

Yes, the device includes built-in reverse polarity protection.