L7808ABD2T

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

The L7808ABD2T is a fixed-output linear voltage regulator from the STMicroelectronics L78 series. It provides a nominal 8 V output with a maximum continuous current of 1.5 A. The device supports a maximum input voltage of 35 V and operates within an ambient temperature range of -40 °C to +125 °C. Key electrical parameters include a line regulation of 80 mV, load regulation of 100 mV, and a typical power supply rejection ratio (PSRR) of 62 dB at 120 Hz. The quiescent current is specified at 4.3 mA. It is housed in a D2PAK surface-mount package.

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

• Provides a stable fixed 8 V DC output for positive polarity applications
• Integrates internal thermal overload protection and short-circuit current limiting
• Delivers up to 1.5 A output current capability in a compact surface-mount form factor

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

• General-purpose power supply regulation
• Local on-card regulation for logic circuits
• Embedded systems requiring stable 8 V rails

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

Verify the specific suffix 'TR' or absence thereof against the manufacturer's official documentation to confirm packaging type and reel specifications. Ensure the ordering part number matches the exact thermal grade and package variant required for the design. Cross-reference datasheet revisions to confirm pinout consistency and updated electrical characteristics before finalizing procurement.

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

Select this component when a robust 1.5 A linear regulator is needed for 8 V applications. The D2PAK package offers improved thermal dissipation compared to smaller SMD packages. Verify that the input-to-output differential voltage remains within safe operating limits to manage heat dissipation effectively under maximum load conditions.

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

This component belongs to the L78xx family of three-terminal positive linear regulators. These devices are widely used for their simplicity and reliability in basic voltage regulation tasks. The ABD2T designation indicates a specific surface-mount package variant within the broader L78 product line, designed for automated assembly processes.

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

L7808CD2T-TR: Surface-mount equivalent with similar electrical characteristics.

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

What is the maximum input voltage for the L7808ABD2T?

The maximum input voltage is 35 V.

Does the L7808ABD2T include protection features?

Yes, it includes internal thermal overload protection and short-circuit current limiting.