LM78L12ACZ/LFT1

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

The LM78L12ACZ/LFT1 is a fixed positive linear voltage regulator from the LM78L series, manufactured by Texas Instruments (formerly National Semiconductor). It provides a stable 12 V output with a maximum current of 100 mA in a TO-92-3 through-hole package. The device operates within an ambient temperature range of 0°C to +125°C and features a typical quiescent current of 5 mA. Internal protections include thermal overload shutdown and short-circuit current limiting.

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

• Fixed 12 V positive output regulation
• Integrated thermal overload protection
• Short-circuit current limiting capability

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

• General-purpose power supply regulation
• Local on-card regulation for digital logic
• Embedded system voltage stabilization

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

Verify the manufacturer origin, as Texas Instruments acquired National Semiconductor. Confirm the specific suffix (LFT1) matches your packaging requirements, such as cut tape or reel, against the official datasheet. Ensure the component meets RoHS compliance standards if required by your assembly process.

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

Select this component when a fixed 12 V source is needed with low current demands up to 100 mA. It is suitable for applications requiring high line and load regulation without external feedback networks. Consider the TO-92 package size constraints and thermal dissipation capabilities relative to the input-output voltage differential.

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

This part belongs to the LM78Lxx family of three-terminal positive regulators. It serves as a direct functional replacement for other manufacturers' equivalents in the same series, offering standardized pinouts and electrical characteristics for easy integration into existing designs.

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

Equivalent parts include the MC78L12ACZ from ON Semiconductor and the UA78L12 from Texas Instruments. Verify pin compatibility and thermal performance before substitution.