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Product Detailed Parameters
- Description：IC REG LINEAR 8V 1.5A DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- 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-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：DPAK
- Grade：-
- Qualification：-
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Overview
The L7808CDT-TR is a fixed positive linear voltage regulator from the STMicroelectronics L7808 series, designed for surface-mount applications in a D2PAK package. It provides a stable 8 V output with a maximum continuous current of 1.5 A. The device accepts an input voltage range up to 35 V and operates within a temperature range of 0°C to +150°C. Key electrical specifications include a line regulation of 160 mV and load regulation of 160 mV. This component integrates internal current limiting and thermal shutdown protection.
Feature Summary
- Fixed 8 V output voltage
- Maximum 1.5 A output current capability
- Integrated thermal overload and short-circuit protection
Applications
- General-purpose power supply regulation
- On-card regulation systems
- Positive regulated power supplies
Procurement Notes
Verify the exact suffix 'CDT-TR' against official STMicroelectronics documentation to confirm the specific D2PAK surface-mount package and tape-and-reel configuration. Confirm RoHS compliance status as indicated in the latest datasheet, noting that some listings may show conflicting environmental data. Ensure the part number matches the intended pinout and thermal characteristics for your PCB layout requirements.
Selection Notes
Select this component when a fixed 8 V output is required with up to 1.5 A load capacity in a surface-mount form factor. Consider the D2PAK package for its thermal performance relative to smaller SMD packages. Verify that the input voltage remains within the 35 V maximum limit and that the ambient operating temperature stays within the specified 0°C to +150°C range for reliable operation.
Part Context
This part belongs to the L78xx family of three-terminal positive linear regulators manufactured by STMicroelectronics. These devices are widely used for basic voltage regulation tasks due to their simplicity and robustness. The L7808 variant specifically targets applications requiring a constant 8 V rail. The 'CDT-TR' designation indicates the specific surface-mount packaging and reel quantity configuration.
Replacement Considerations
Consult official STMicroelectronics cross-reference guides or distributor substitution tools for verified equivalents. Generic replacements must match the 8 V output, 1.5 A current rating, D2PAK package, and compatible pinout to ensure functional interchangeability without circuit redesign.
