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Product Detailed Parameters
- Description：IC REG LINEAR 8V 1.5A D2PAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：2V @ 1A (Typ)
- Current - Output：1.5A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：-
- PSRR：56dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：D2PAK
- Grade：-
- Qualification：-
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Overview
The L7808CD2T-TR is a fixed-output linear voltage regulator from the STMicroelectronics L78 series, providing a nominal 8 V output. It supports up to 1.5 A load current with a maximum input voltage of 35 V and minimum input of 10 V. The device operates within a temperature range of 0 °C to +125 °C and features a typical quiescent current of 4.3 mA. Packaged in D2PAK for surface mount applications, it includes internal protections such as current limiting, thermal shutdown, and safe area protection.
Feature Summary
- Integrated safety mechanisms including internal current limiting, thermal shutdown, and safe area protection ensure robust operation under fault conditions.
- Designed for local on-card regulation to eliminate distribution issues associated with single-point power supply architectures.
- Fixed positive output configuration simplifies circuit design by removing the need for external feedback components.
Applications
- Local on-card voltage regulation
- General-purpose DC-to-DC conversion
- Power supplies for embedded systems
Procurement Notes
Verify the package type matches the required footprint, as the L78 series is available in multiple form factors including TO-220 and D2PAK. Confirm that the specific suffix indicates the correct reel packaging quantity if automated assembly is planned. Ensure the operating temperature range aligns with the final system environment requirements before procurement.
Selection Notes
Select this component when a fixed 8 V output is required with high current capability up to 1.5 A. The D2PAK package is suitable for surface-mount designs requiring efficient heat dissipation. Consider the dropout voltage characteristics relative to the input supply to maintain regulation. Verify that the thermal management strategy supports the expected power dissipation at maximum load currents.
Part Context
This part belongs to the L78xx family of three-terminal positive linear regulators manufactured by STMicroelectronics. The series is characterized by its simplicity, reliability, and built-in protection features. The L7808 variant specifically provides an 8 V output, distinguishing it from other members of the family that offer different fixed voltage levels such as 5 V or 12 V.
Replacement Considerations
Compatible substitutes include the L7808CV (TO-220 package) and L7808ACD2T-TR (improved line/load regulation). Verify pinout compatibility and thermal performance when substituting between through-hole and surface-mount packages.
