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Product Detailed Parameters
- Description：IC REG LINEAR 12V 500MA DPAK
- 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：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 LF120ABDT-TR is a fixed-output linear regulator from the LFxx series, manufactured by STMicroelectronics. It provides a stable 12V output with a maximum continuous current of 500mA. The device features a low dropout voltage of 0.45V and a low quiescent current of 1.5mA, making it suitable for low-noise, low-power applications. It operates within an input voltage range of -0.5V to 40V and includes protection against overcurrent and overtemperature conditions. The component is housed in a DPAK (TO-252-3) surface-mount package.
Feature Summary
- Very low dropout voltage ensures efficient regulation even when input voltage approaches the output level.
- Low quiescent current minimizes power consumption, extending battery life in portable systems.
- Integrated thermal shutdown and overcurrent protection enhance system reliability under fault conditions.
Applications
- Battery-powered electronic systems requiring stable voltage regulation
- Low-noise analog circuit power supplies
- General-purpose DC-to-DC conversion in consumer electronics
Procurement Notes
Verify the specific suffix (e.g., TR for tape and reel) matches your assembly requirements. Confirm the package type is DPAK/TO-252-3. Ensure the manufacturer is STMicroelectronics. Check RoHS compliance status if required by your manufacturing standards. Validate the part number against official distributor catalogs to avoid counterfeit components.
Selection Notes
Select this component when a fixed 12V output is needed with minimal voltage drop. Consider its 500mA current limit for load requirements. Evaluate the DPAK package for thermal management needs. Compare quiescent current specifications against other LDOs for efficiency optimization in battery-operated designs.
Part Context
This part belongs to the LFxx family of very low dropout regulators offered by STMicroelectronics. The family provides various fixed output voltages tailored for low-power applications. The LF120 variant specifically targets 12V regulation needs. It shares common features like low noise and high PSRR with other members of the series.
Replacement Considerations
Direct substitutes may include other 12V LDOs from STMicroelectronics or competitors with similar 500mA output and DPAK packaging. Verify pinout compatibility and thermal characteristics before substitution. Ensure replacement parts meet the same input voltage and protection feature requirements.
