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Product Detailed Parameters
- Description：IC REG LINEAR 12V 500MA PPAK
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR)
- 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：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-5, DPAK (4 Leads + Tab), TO-252AD
- Supplier Device Package：PPAK
- Grade：-
- Qualification：-
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Overview
The LF120ABPT-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 utilizes a DPAK (TO-252) surface-mount package and operates within an extended temperature range of -40°C to +125°C. Key electrical characteristics include a low dropout voltage of approximately 0.7V at full load and a typical quiescent current of 1.5mA. It incorporates internal protection mechanisms against overcurrent and thermal overload.
Feature Summary
- Fixed 12V output configuration for precise voltage regulation
- Low dropout operation suitable for battery-powered systems
- Integrated thermal and current limiting protection
Applications
- Battery-powered electronic devices requiring low noise
- Low-power general-purpose power supply circuits
- Embedded systems utilizing linear regulation topologies
Procurement Notes
Verify the specific suffix 'ABPT' against official manufacturer documentation to confirm pinout compatibility and package variations. Ensure the ordering code matches the required tape-and-reel packaging format. Cross-reference the datasheet revision date to validate parameter accuracy before finalizing procurement specifications.
Selection Notes
Select this component when a fixed 12V rail is required with moderate current demands up to 500mA. Consider the thermal performance in the DPAK package relative to ambient conditions. Verify that the input voltage remains sufficiently above the output to maintain regulation without exceeding absolute maximum ratings.
Part Context
This part belongs to the LFxx family of very low drop regulators designed for low-noise and low-power applications. The series offers various fixed output voltages optimized for efficiency in portable electronics. The LF120 variant specifically targets 12V distribution needs within this portfolio.
Replacement Considerations
Consult official substitution guides for equivalent LDOs with matching 12V output and 500mA capability. Verify pin-to-pin compatibility if replacing in existing designs. Confirm that alternative packages meet the same thermal and electrical requirements.
