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Product Detailed Parameters
- Description：IC REG LINEAR -8V 1.5A TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-35V
- Voltage - Output (Min/Fixed)：-8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.1V @ 1A (Typ)
- Current - Output：1.5A
- Current - Quiescent (Iq)：3 mA
- Current - Supply (Max)：-
- PSRR：60dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：0°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 L7908ACV is a three-terminal negative voltage regulator from the L79xxAC series, manufactured by STMicroelectronics. It provides a fixed output voltage of -8 V with an output current capability up to 1.5 A. The device operates within a junction temperature range of 0 to 125 °C and accepts a maximum DC input voltage of -35 V for this specific output voltage. It features thermal overload protection, short circuit protection, and output transition SOA protection. The component is housed in a TO-220 package.
Feature Summary
- Provides local on-card regulation for negative power supplies
- Includes built-in thermal overload and short circuit protection
- Capable of delivering over 1.5 A output current with adequate heat sinking
Applications
- Split power supply systems
- Local on-card regulation
- Negative voltage generation circuits
Procurement Notes
Verify the exact part number against official manufacturer documentation to ensure compatibility with the required specifications. Confirm that the ordering suffix matches the desired package type and environmental compliance standards. Cross-reference datasheet electrical characteristics with system requirements before finalizing procurement decisions.
Selection Notes
Select this component when a stable negative voltage rail is required for electronic circuits. Ensure the design includes sufficient heat sinking to support the maximum output current rating. Verify that the input voltage range accommodates the dropout voltage requirements under varying load conditions.
Part Context
This device belongs to the L79xxAC series of three-terminal negative regulators. It shares similar functionality with the L78xxA positive standard series but is designed for negative voltage applications. The series offers multiple fixed output voltage options to support various power supply configurations.
Replacement Considerations
Compatible substitutes include other L79xxAC series parts such as L7905ACV, L7912ACV, L7915ACV, and L7924ACV, depending on the required output voltage.
