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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 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)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：12 mA
- PSRR：82dB ~ 65dB (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 LF25ABV is a low-dropout linear voltage regulator manufactured by STMicroelectronics, designed to provide a fixed 2.5V output with a maximum current capacity of 500mA. Housed in a TO-220AB through-hole package, this positive polarity device operates within an input voltage range up to 16V and features a typical dropout voltage of 0.4V at full load. It maintains stable performance across a wide temperature range from -40°C to +125°C, drawing only 50µA of quiescent current. The component includes internal protection mechanisms to ensure reliable operation in various electronic circuits requiring precise voltage regulation.
Feature Summary
- Fixed 2.5V output voltage for precise power supply applications
- Low dropout characteristic ensuring efficient regulation under varying load conditions
- Robust thermal and electrical protection for enhanced reliability
Applications
- Battery-powered portable devices requiring stable low-voltage rails
- Industrial control systems needing regulated power supplies
- Personal electronics and consumer appliances
- IoT solutions and embedded systems
Procurement Notes
Verify the exact part number LF25ABV against official STMicroelectronics documentation to confirm specifications such as output voltage and package type. Ensure compatibility with your circuit design requirements regarding input voltage limits and thermal management. Cross-reference datasheets for accurate pin configurations and absolute maximum ratings before integration into production or prototyping phases.
Selection Notes
Select the LF25ABV when a fixed 2.5V output is required with moderate current demands up to 500mA. Consider its TO-220AB package for through-hole mounting and adequate heat dissipation. Evaluate the low quiescent current for battery-operated applications and verify that the input voltage does not exceed the 16V maximum rating. Compare dropout voltage characteristics against other regulators if efficiency under light loads is critical.
Part Context
The LF series from STMicroelectronics comprises low-dropout linear regulators offering fixed output voltages. These components are engineered for stability and ease of use in power supply designs. The LF25ABV specifically provides a 2.5V output, fitting into the broader family of regulators designed for industrial, automotive, and personal electronics applications where reliable voltage regulation is essential.
Replacement Considerations
Consult official STMicroelectronics substitution guides for verified alternatives. Generic replacements may differ in pinout, thermal performance, or electrical characteristics. Do not assume interchangeability without verifying datasheet parameters against the original LF25ABV specifications.
