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Product Detailed Parameters
- Description：IC REG LINEAR 5V 100MA TO3
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：2V @ 1A
- Current - Output：100mA
- Current - Quiescent (Iq)：3 mA
- Current - Supply (Max)：4.5 mA
- PSRR：72dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：-55°C ~ 125°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 LM140LAH-5.0/NOPB is a fixed-output linear voltage regulator from the Texas Instruments LM140L series, providing a stable 5.0 V output with a maximum current of 100 mA. It operates within an input voltage range of 7 V to 18 V and supports a dropout voltage of 1.5 V. The device features a quiescent current of 4.5 mA and maintains a load regulation accuracy of 2%. Designed for robust performance, it functions across an extended temperature range from -55 °C to +125 °C and utilizes a TO-39-3 through-hole package.
Feature Summary
- Provides a fixed 5.0 V positive output with 100 mA current capability
- Operates reliably in extended industrial temperature environments
- Utilizes a durable metal TO-39-3 hermetic-style package
Applications
- Industrial control systems requiring stable low-current power rails
- Sensor interface circuits needing precise voltage references
- Embedded instrumentation powering analog components
Procurement Notes
Verify the complete part number including the /NOPB suffix to ensure lead-free compliance and specific manufacturing lot details. Confirm that the TO-39-3 package dimensions match your PCB footprint requirements. Check for any recent Product Change Notifications (PCN) regarding pinout or material changes before finalizing procurement specifications.
Selection Notes
Select this component when a fixed 5 V supply is required with moderate current demands up to 100 mA. It is suitable for applications where thermal dissipation can be managed via the metal case mounting. Consider alternative packages if surface-mount technology is preferred, as this model requires through-hole installation.
Part Context
This regulator belongs to the LM140L family of three-terminal positive regulators. It shares functional similarities with other LM140 variants but is distinguished by its specific 5.0 V fixed output and extended temperature rating. The TO-39-3 package offers superior heat dissipation compared to plastic alternatives, supporting reliable operation in demanding environments.
Replacement Considerations
Direct substitutes include LM140LAH-5.0 without the NOPB suffix for non-lead-free versions. Other LM140L series devices with different fixed voltages may serve as functional replacements if voltage levels are adjusted accordingly.
