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Product Detailed Parameters
- Description：IC REG LINEAR 12V 500MA DPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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 positive linear regulator from the LFxx series, manufactured by STMicroelectronics. It provides a stable 12 V output with a maximum continuous current of 500 mA. The device operates within an input voltage range of -0.5 V to 40 V and features a typical dropout voltage of 0.45 V at full load. It incorporates internal protection mechanisms including overcurrent limiting and thermal shutdown. The component is housed in a surface-mount DPAK (TO-252-3) package and is rated for operation across an extended temperature range from -40 °C to +125 °C.
Feature Summary
- Integrated delayed turn-on functionality for controlled power-up sequences
- Low quiescent current design optimized for battery-powered systems
- Built-in thermal shutdown and overcurrent protection for enhanced reliability
Applications
- Battery-powered electronic systems requiring low noise
- Low-power applications demanding minimal static current consumption
- General-purpose 12 V regulation in portable devices
Procurement Notes
Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is STMicroelectronics to ensure authenticity. Check RoHS compliance status as per the latest datasheet revision. Validate the operating temperature range requirements against your system specifications before procurement.
Selection Notes
Select this component when a fixed 12 V output is required with moderate current capability up to 500 mA. The low dropout characteristic makes it suitable for inputs close to the output voltage. Ensure the application benefits from the delayed turn-on feature if present. Consider the DPAK package constraints for thermal management in high-current scenarios.
Part Context
This part belongs to the LFxx family of very low drop regulators offered by STMicroelectronics. The family provides various fixed output voltages tailored for low-noise and low-power environments. The LF120 variant specifically targets 12 V regulation needs within consumer and industrial electronics.
Replacement Considerations
Check for direct pin-compatible substitutes within the LFxx series offering different output voltages or current ratings. Verify equivalent thermal performance and package dimensions when considering alternative manufacturers.
