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Product Detailed Parameters
- Description：IC REG LINEAR 15V 100MA TO39-3
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：15V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：4.5 mA
- Current - Supply (Max)：-
- PSRR：72dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-55°C ~ 125°C (TA)
- 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 LM140LAH-15/883 is a high-reliability, three-terminal positive voltage regulator manufactured by National Semiconductor. It belongs to the LM140 series and provides a fixed 15V output at up to 1.0A load current. The device features internal thermal overload protection and safe area compensation. It is designed for military and aerospace applications requiring robust performance under extreme conditions.
Feature Summary
- Provides stable regulated DC voltage from unregulated sources
- Includes built-in thermal shutdown and current limiting
- Capable of delivering 1.0A continuous output current
- Designed for high reliability in harsh environments
Applications
- Military electronic systems
- Aerospace power supplies
- High-reliability industrial equipment
- Harsh environment instrumentation
Procurement Notes
Verify the specific suffix /883 indicates compliance with MIL-PRF-38534 or similar military standards. Confirm the LAH package style matches your thermal and mechanical requirements. Ensure the 15V output variant aligns with your system design. Request full traceability documentation and test reports from authorized distributors.
Selection Notes
Select this component when a fixed 15V output is required with high current capability and ruggedness. Consider the ceramic package for superior thermal dissipation and hermetic sealing compared to plastic alternatives. Evaluate input voltage headroom to ensure proper regulation and thermal management within the operating temperature range.
Part Context
This part is part of the LM140 family of three-terminal positive regulators. It shares functional similarities with the LM340 series but offers higher reliability specifications suitable for defense and space applications. The /883 suffix typically denotes a qualified military grade version.
Replacement Considerations
Direct replacements include other military-grade LM140 variants with matching output voltage and package type. Verify pinout compatibility and thermal characteristics before substitution. Consult manufacturer datasheets for equivalent parts with identical electrical and environmental ratings.
