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Product Detailed Parameters
- Description：IC REG LINEAR 8V 500MA TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1.5 mA
- Current - Supply (Max)：12 mA
- PSRR：72dB ~ 57dB (120Hz ~ 10kHz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The LF80CV is a fixed-output positive low-dropout (LDO) linear voltage regulator manufactured by STMicroelectronics. It provides a stable 8.0V output with a maximum continuous current of 500 mA. The device features a very low dropout voltage, typically 200 mV at full load, ensuring efficient regulation even when the input-to-output differential is small. It operates within an extended temperature range from -40°C to +125°C and includes internal protection mechanisms against overcurrent and thermal overload.
Feature Summary
- Fixed 8.0V output voltage for precise power supply applications
- High output current capability up to 500 mA
- Very low dropout voltage for enhanced efficiency under varying load conditions
- Integrated thermal overload and short-circuit protection
Applications
- Battery-powered portable devices requiring stable 8V rails
- Industrial control systems needing reliable linear regulation
- Communication equipment power supplies
- Test and measurement instrumentation
Procurement Notes
Verify component authenticity through authorized STMicroelectronics distributors or certified partners. Confirm package type matches design requirements, as variations exist across the LF series. Check lifecycle status, as this specific part may be obsolete or subject to last-time buy notices. Ensure datasheet revisions align with current manufacturing specifications before finalizing procurement orders.
Selection Notes
Select the LF80CV when a fixed 8V output is required with moderate current demands up to 500 mA. Consider its low dropout characteristic for applications where input voltage headroom is limited. Evaluate thermal management needs based on expected power dissipation in the chosen package. Compare against other LDOs if adjustable output or higher current capacity is necessary.
Part Context
The LF80CV belongs to STMicroelectronics' LF series of very low-dropout regulators. This family offers various fixed output voltages and packages including TO-220, DPAK, and PENTAWATT. These regulators are designed for general-purpose linear regulation tasks where noise sensitivity is lower than switching converters but efficiency and simplicity are prioritized.
Replacement Considerations
Direct pin-compatible substitutes may include other LFxxCV variants with different fixed output voltages if system design allows voltage adjustment. Verify equivalent current ratings and dropout characteristics. Cross-reference with similar LDO families from other manufacturers only after confirming electrical parameter compatibility and package dimensions.
