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Product Detailed Parameters
- Description：IC REG LINEAR -12V 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 L7912CV is a fixed negative linear voltage regulator manufactured by STMicroelectronics, belonging to the L79 series. It provides a stable -12 V output with a maximum current capability of 1.5 A. The device operates within an input voltage range of -14.5 V to -35 V and features a typical power supply rejection ratio (PSRR) of 60 dB. Internal protections include thermal shutdown and safe area protection. It is housed in a TO-220-3 through-hole package and supports an operating temperature range from 0°C to +150°C.
Feature Summary
- Provides a fixed negative output voltage for power supply applications
- Includes internal thermal overload and short-circuit current limiting protection
- Offers high ripple rejection performance for noise-sensitive circuits
Applications
- Negative rail generation in dual-supply electronic systems
- Power conditioning for analog signal processing circuits
- General-purpose linear regulation in industrial equipment
Procurement Notes
Verify the manufacturer designation on the component marking to confirm it originates from STMicroelectronics. Ensure the ordering suffix matches the required package type and RoHS compliance status. Cross-reference the part number against official distributor catalogs to validate authenticity and avoid counterfeit components.
Selection Notes
Select this component when a reliable negative voltage source is required for low-to-medium current loads. Consider the thermal dissipation requirements based on the input-output voltage differential and load current. Verify that the TO-220-3 package fits the available board space and mounting constraints.
Part Context
This component is part of the L79 series of negative voltage regulators produced by STMicroelectronics. The series offers various fixed output voltages to support diverse power management needs in consumer and industrial electronics. The L7912CV specifically addresses applications requiring a regulated -12 V rail.
Replacement Considerations
Compatible substitutes include other L79xx series regulators from STMicroelectronics or equivalent negative linear regulators from manufacturers such as ON Semiconductor or Texas Instruments, provided pinouts and electrical specifications match.
