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Product Detailed Parameters
- Description：IC REG LINEAR -8V 1.5A TO220
- Series：-
- Mfr：EVVO
- Package：Tube
- Output Configuration：-
- Output Type：-
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- Voltage - Input (Max)：-
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：-
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：-
- Control Features：-
- Protection Features：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
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Overview
The L7908CV is a fixed negative linear voltage regulator manufactured by STMicroelectronics, belonging to the L79xx series. It provides a regulated output of -8 V with a maximum continuous load current of 1.5 A. The device accepts input voltages ranging from -10.5 V to -35 V and maintains regulation with a dropout voltage of approximately 2 V at full load. Internal protections include thermal overload shutdown and safe area compensation. It is housed in a TO-220-3 through-hole package.
Feature Summary
- Provides a fixed negative output voltage for dual-supply systems
- Includes internal thermal overload protection to prevent damage during overheating
- Features safe area compensation to protect against excessive current draw
Applications
- Negative rail generation for operational amplifier circuits
- Power supplies for microprocessor-based systems requiring dual polarity
- General-purpose electronic equipment power conditioning
Procurement Notes
Verify the manufacturer marking on the component body to confirm it originates from STMicroelectronics or an authorized licensee. Ensure the part number suffix matches the required package type. Cross-reference the datasheet revision date to ensure compatibility with specific design constraints. Confirm RoHS compliance status if environmental regulations apply to the final assembly.
Selection Notes
Select this component when a stable negative voltage rail is required for analog or digital logic circuits. It serves as a direct replacement for other generic L7908 equivalents. Consider the thermal resistance of the TO-220 package and the necessity of a heatsink based on the expected voltage drop and load current in the target application environment.
Part Context
This component is part of the L79xx family of three-terminal negative regulators. These devices are widely used in industrial and consumer electronics to provide reliable negative supply rails. The L7908 specifically targets applications needing an -8 V reference or supply level, complementing positive regulators like the 78xx series.
Replacement Considerations
Compatible substitutes include the LM7908, MC7908, and UA7908. Verify pinout compatibility and thermal performance characteristics before substitution. Ensure the alternative part meets the same electrical specifications for output voltage tolerance and maximum current handling.
