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Product Detailed Parameters
- Description：IC REG LIN 12V 500MA 5-PENTAWATT
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：16V
- Voltage - Output (Min/Fixed)：12V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1.5 mA
- Current - Supply (Max)：12 mA
- PSRR：69dB ~ 54dB (120Hz ~ 10kHz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：Pentawatt-5 (Vertical, Bent and Staggered Leads)
- Supplier Device Package：5-PENTAWATT
- Grade：-
- Qualification：-
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Overview
The LF120ABV is a fixed positive low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. It provides a nominal output voltage of 12 V with a maximum output current capability of 500 mA. The device operates within an input voltage range of 3 V to 16 V and maintains regulation with a typical dropout voltage of 400 mV. It is housed in a 3-pin TO-220 package and is rated for operation over an extended temperature range from -40°C to +125°C.
Feature Summary
- Fixed 12 V output voltage regulation
- Low dropout performance for efficient power conversion
- High output current capability up to 500 mA
- Robust thermal stability across wide operating temperatures
Applications
- General purpose linear voltage regulation
- Power supply conditioning for electronic circuits
- Battery-powered systems requiring stable 12 V rails
Procurement Notes
Verify the specific suffix and marking on the component to confirm it matches the LF120ABV designation exactly. Ensure the TO-220 package type and pin configuration align with your PCB footprint requirements. Cross-reference the manufacturer's latest datasheet for any updates on electrical characteristics or recommended operating conditions before finalizing procurement.
Selection Notes
Select this component when a stable 12 V output is required at currents up to 500 mA with minimal voltage drop. The TO-220 package facilitates heat dissipation for higher power applications. Consider the input voltage range limits and thermal management needs based on the ambient temperature and load current to ensure reliable operation within the specified -40°C to +125°C range.
Part Context
This part belongs to the family of low-dropout linear regulators designed for applications where noise sensitivity and efficiency are critical. The LF120 series offers fixed output voltages, simplifying design implementation compared to adjustable regulators. It serves as a reliable solution for providing clean power to analog and digital loads in industrial and consumer electronics.
Replacement Considerations
Check for direct pin-compatible replacements with identical 12 V output and 500 mA current rating. Verify that alternative LDOs offer comparable dropout voltage and thermal performance in the TO-220 package. Ensure any substitute supports the same input voltage range and operating temperature specifications.
