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Product Detailed Parameters
- Description：IC REG LINEAR -8V 1.5A TO39-3
- Series：LM120
- Mfr：National Semiconductor
- Package：Bulk
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-25V
- Voltage - Output (Min/Fixed)：-8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：1.5A
- Current - Quiescent (Iq)：4 mA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：Current Limit
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-55°C ~ 150°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-205AD, TO-39-3 Metal Can
- Supplier Device Package：TO-39-3
- Grade：-
- Qualification：-
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Overview
The LM120H-8.0/883 is a negative fixed linear voltage regulator manufactured by National Semiconductor. It provides a stable -8V output with a maximum load current of 1.5A. The device is housed in a TO-39-3 package and is designed for power management applications requiring reliable standard regulation. This component belongs to the PMIC category, specifically classified as a linear negative fixed regulator with a single output configuration.
Feature Summary
- Provides a fixed negative voltage output for stable power regulation
- Capable of delivering high load current up to 1.5A
- Utilizes a robust TO-39 metal can package for durability
Applications
- Power management systems requiring negative voltage rails
- Industrial equipment needing stable -8V regulation
- Military or aerospace electronics utilizing MIL-spec components
Procurement Notes
Verify that the specific suffix /883 indicates military-grade screening and compliance requirements distinct from commercial variants. Confirm RoHS status, as this part is noted as non-compliant in available documentation. Ensure the supplier provides traceability data consistent with the National Semiconductor (now Texas Instruments) heritage for critical applications.
Selection Notes
Select this component when a fixed -8V output is required with high current capability in a hermetically sealed package. Consider the TO-39 form factor for thermal and mechanical robustness. Evaluate if the negative polarity aligns with system ground references. Compare against other LM120 series variants for different voltage levels if -8V is not the precise requirement.
Part Context
This regulator is part of the LM120 family, which includes various fixed voltage options such as the LM120K-5.0/883 and LM120H-15. These devices share similar architectural features but differ in output voltage specifications. The /883 suffix typically denotes adherence to MIL-PRF-38534 standards, distinguishing it from general-purpose industrial counterparts.
Replacement Considerations
Potential substitutes include other LM120 series parts with adjusted voltage ratings, such as LM120K-5.0/883 for -5V applications. Verify pinout compatibility and thermal performance before substitution. Cross-reference with Texas Instruments datasheets for updated equivalents if National Semiconductor legacy support is limited.
