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Product Detailed Parameters
- Description：IC REG LINEAR NEG ADJ 1.5A TO3
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Output Configuration：Negative
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：50V
- Voltage - Output (Min/Fixed)：-1.2V
- Voltage - Output (Max)：-37V
- Voltage Dropout (Max)：-
- Current - Output：1.5A
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：-
- PSRR：77dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-55°C ~ 150°C (TJ)
- 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 LM137HVH/883 is a military-grade, three-terminal adjustable negative voltage regulator manufactured by Texas Instruments. It provides an output current of 0.5 A with an adjustable output voltage range from -1.2 V to -47 V. The device supports a maximum input voltage of -50 V and operates within a junction temperature range of -65°C to +150°C. Key electrical specifications include a thermal regulation of 0.02% per watt and internal current and power limiting capabilities.
Feature Summary
- Military-grade reliability compliant with MIL-PRF-38534 standards
- Integrated internal current and power limiting for overload protection
- True thermal limiting prevents device damage during shorts or overloads
Applications
- High-reliability aerospace electronic systems
- Defense equipment power management circuits
- Harsh environment industrial control applications
Procurement Notes
Verify the specific suffix /883 indicates compliance with MIL-PRF-38534 Class K or H specifications. Confirm that the package style matches the required TO-3 metal can configuration. Ensure the procurement channel is authorized to handle defense-grade components requiring full traceability documentation.
Selection Notes
Select this component when high-voltage negative regulation is required in extreme environments. The 0.5 A output current suits moderate load applications where standard 1.5 A regulators are unnecessary. The extended temperature range ensures stability in conditions exceeding commercial limits.
Part Context
This part belongs to the LM137 series of three-terminal adjustable negative regulators. While the standard LM137 offers 1.5 A output, the HV variant is optimized for higher input voltages up to 50 V. The /883 suffix denotes a specialized military qualification distinct from commercial or industrial versions.
Replacement Considerations
LM137QML: Qualified Military Linear Regulator
FAQ
What is the maximum input voltage for the LM137HVH/883?
The maximum input voltage is -50 V.
Does the LM137HVH/883 include short-circuit protection?
Yes, it features internal current limiting and true thermal limiting to prevent damage during shorts.
