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Product Detailed Parameters
- Description：IC REG LINEAR 3V 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)：3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.7V @ 500mA
- Current - Output：500mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：12 mA
- PSRR：81dB ~ 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 LF30CV is a low-dropout linear voltage regulator manufactured by STMicroelectronics, designed for through-hole mounting in TO-220 packages. It provides a fixed positive output voltage of 3.0V with a maximum output current capability of 500mA. The device features a maximum input voltage rating of 16V and operates within a temperature range from -40°C to +125°C. Key electrical specifications include a quiescent current of 500µA and a maximum dropout voltage of 1V at full load. The component offers single-output configuration with positive polarity and includes internal protection mechanisms.
Feature Summary
- Fixed 3.0V output voltage regulation
- Low dropout voltage performance
- High thermal stability up to 125°C
- Integrated inhibit functionality
Applications
- Battery-powered equipment requiring stable low-voltage rails
- Industrial control systems needing reliable linear regulation
- General-purpose power supply circuits in consumer electronics
Procurement Notes
Verify the specific datasheet revision and package variant (TO-220AB) against your design requirements. Confirm that the 16V maximum input voltage aligns with your system's supply conditions. Ensure thermal management strategies account for the TO-220 package's dissipation characteristics under expected load currents. Cross-reference the manufacturer's ordering codes to ensure compatibility with existing inventory or procurement channels.
Selection Notes
Select this component when a fixed 3.0V output is required with moderate current demands up to 500mA. Consider its low dropout characteristic for applications where input voltage may approach the output level. Evaluate thermal performance based on ambient temperature and power dissipation. Verify that the through-hole TO-220 package fits the PCB layout constraints. Compare quiescent current specifications if battery life is a critical factor.
Part Context
The LF30CV belongs to STMicroelectronics' LFxx series of very low drop voltage regulators. This family is characterized by high reliability and robust performance in various industrial and commercial applications. The CV suffix typically denotes the specific output voltage and package type within the broader LF regulator lineup, ensuring consistency across similar product offerings from the manufacturer.
Replacement Considerations
Direct substitutes may include other LFxx series variants with compatible output voltages and current ratings. Check for equivalent packages like TO-220AB to maintain mechanical fit. Verify pinout compatibility and electrical parameters such as dropout voltage and quiescent current before substitution.
FAQ
What is the maximum input voltage for the LF30CV?
The maximum input voltage rating for the LF30CV is 16V.
Does the LF30CV have an inhibit function?
Yes, the LF30CV is part of a series that includes an inhibit feature for controlling the regulator's operation.
