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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ 500MA TO3
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：41.25V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：37V
- Voltage Dropout (Max)：-
- Current - Output：500mA
- Current - Quiescent (Iq)：100 µA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-55°C ~ 125°C (TA)
- 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 LM117H/883/MABI is a military-grade, three-terminal adjustable positive linear voltage regulator manufactured by Texas Instruments. It operates within an input voltage range of up to 60 V and provides an adjustable output voltage from 1.25 V to 57 V. The device supports a maximum output current of 1.5 A with a typical dropout voltage of 1.5 V. It features a line regulation of 0.04 %/V and load regulation of 1.25 %. The component is housed in a TO-39 metal can package (MABI suffix) and is rated for operation between -55 °C and +125 °C.
Feature Summary
- Military-grade reliability compliant with MIL-STD-883 standards
- Adjustable output voltage capability across a wide range
- High input voltage tolerance up to 60 V
- Robust thermal performance in a hermetic metal can package
Applications
- Aerospace power supply systems
- Military electronic equipment
- High-reliability industrial instrumentation
- Harsh environment control circuits
Procurement Notes
Verify the MABI suffix indicates the specific TO-39 metal can package variant. Confirm MIL-STD-883 compliance requirements match your project specifications. Check for updated RoHS or environmental declarations if applicable to your facility. Ensure the supplier provides traceability documentation for military-grade components. Validate the operating temperature range against your system's thermal constraints.
Selection Notes
Select this component when high reliability and radiation hardness are required. Consider the TO-39 package for superior thermal dissipation compared to plastic variants. Evaluate the 1.5 A current limit against peak load demands. Compare line and load regulation specs against precision requirements. Assess the 60 V input rating for compatibility with available power sources.
Part Context
This part belongs to the LM117 family of three-terminal adjustable regulators. It shares functional similarities with commercial LM317 devices but offers enhanced durability and extended temperature ranges. The MABI designation specifies the military-grade packaging and testing protocols. It serves as a robust alternative for applications where standard commercial parts may fail under stress.
Replacement Considerations
LM117H/883 is a direct military-grade equivalent. LM317H offers similar functionality in commercial packages. LM117HVHRQMLV provides space-grade options. Verify pinout compatibility before substitution. Ensure regulatory compliance matches the original design intent.
