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Product Detailed Parameters
- Description：IC REG LINEAR -9V 1.5A TO220
- Series：-
- Mfr：EVVO
- Package：Tube
- Output Configuration：-
- Output Type：-
- Number of Regulators：-
- 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：-
- Supplier Device Package：-
- Grade：-
- Qualification：-
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Overview
The L7909CV is a fixed negative linear voltage regulator manufactured by EVVO, designed to provide a stable -9V output. It supports a maximum output current of 1.5A and operates within an input voltage range up to -35V. The device utilizes a TO-220-3 through-hole package for efficient heat dissipation and includes internal protections against overtemperature conditions and short circuits. It is compliant with RoHS3 standards and functions reliably across a specified temperature range.
Feature Summary
- Provides a fixed negative voltage regulation suitable for power supply applications
- Integrates thermal overload and short-circuit protection mechanisms
- Utilizes a robust TO-220-3 through-hole package for effective thermal management
Applications
- General purpose negative power supply regulation
- Voltage reference generation in electronic circuits
- Over-voltage protection stages
Procurement Notes
Verify the manufacturer designation on the component marking, as EVVO may utilize this part number structure for generic equivalents. Confirm that the TO-220-3 package dimensions match your PCB footprint requirements. Ensure the application circuit provides sufficient headroom between the input and output voltages to maintain regulation. Check for RoHS3 compliance documentation if required by your manufacturing standards.
Selection Notes
Select this component when a fixed negative rail is required for analog or digital loads drawing up to 1.5A. Consider the thermal resistance of the TO-220 package relative to the expected power dissipation in your specific enclosure. Evaluate the input voltage stability to ensure it remains within the maximum rating during all operating conditions. Compare against other negative regulators if higher current or different voltage levels are needed.
Part Context
This component belongs to the L79xx series of negative linear regulators, a standard topology widely used in power management. While originally popularized by manufacturers like STMicroelectronics, EVVO offers this variant maintaining the functional pinout and electrical characteristics. It serves as a direct replacement for legacy designs requiring a reliable -9V source in through-hole assemblies.
Replacement Considerations
Compatible substitutes include the STMicroelectronics L7909CV and equivalent generic negative regulators from other vendors sharing the L79xx naming convention. Verify that any alternative maintains the same -9V output, 1.5A current capability, and TO-220-3 package form factor to ensure mechanical and electrical compatibility.
