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Product Detailed Parameters
- Description：IC REG LINEAR -15V 200MA TO3
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Output Configuration：Negative
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：-35V
- Voltage - Output (Min/Fixed)：-15V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：200mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：-
- PSRR：64dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature
- Operating Temperature：-55°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：TO-205AD, TO-39-3 Metal Can
- Supplier Device Package：TO-3
- Grade：-
- Qualification：-
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Overview
The LM120H-15 is a Series 3-Terminal Negative Regulator manufactured by Texas Instruments. It provides a fixed negative output voltage of -15V. The device utilizes TO-3 metal can packaging, designed for through-hole mounting. It operates within a temperature range of -55°C to +125°C. The component is part of the LM120 series and employs bipolar technology. It functions as a standard voltage regulator with two pins in the MBFM2 package configuration.
Feature Summary
- Fixed negative voltage regulation capability
- High-temperature operation up to +125°C
- Robust metal can construction
Applications
- Industrial power supply systems requiring stable negative rails
- Military or aerospace electronic equipment demanding high reliability
- Test and measurement instrumentation
Procurement Notes
Verify the specific suffix and revision level against the manufacturer's current datasheet to ensure compatibility with design requirements. Confirm that the TO-3 package dimensions and pinout match the target PCB footprint. Check for RoHS compliance status if required by the end product regulations. Ensure thermal management strategies account for the device's power dissipation characteristics in the intended application environment.
Selection Notes
Select this component when a fixed -15V negative supply is required in harsh environments. The TO-3 package offers superior thermal performance compared to plastic packages. Consider the input voltage headroom necessary to maintain regulation. Evaluate the load current requirements against the device's maximum output current specifications. Verify that the operating temperature range covers the full environmental conditions of the deployment site.
Part Context
The LM120H-15 belongs to the LM120 family of Series 3-Terminal Negative Regulators. This family is known for providing reliable fixed negative voltages in industrial and military applications. The H-15 variant specifically denotes the -15V output version. These regulators are often used where high reliability and wide temperature operation are critical. They serve as foundational components in power distribution networks for analog and digital circuits.
Replacement Considerations
Compatible substitutes include the LM7915CT and LM320L from various manufacturers. The LM120QML is available for qualified military standards. Verify pinout compatibility and thermal resistance values before substitution. Ensure the replacement meets the same voltage tolerance and temperature range specifications.
