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The LM140LAH-5.0/NOPB is a fixed-output linear voltage regulator from the LM140L series, manufactured by Texas Instruments. It provides a fixed positive output of 5.0 V with a maximum output current of 100 mA. The device operates within an input voltage range of 7.6 V to 35 V and supports a wide operating temperature range from -55°C to +125°C. It features a typical quiescent current of 4.5 mA and utilizes a TO-39-3 through-hole package.
Verify the specific suffix (e.g., /883 or /NOPB) against the Bill of Materials, as it determines compliance standards and lead times. Confirm that the TO-39-3 package dimensions match the PCB footprint. Ensure the input voltage remains above the minimum dropout requirement for the 5.0 V output under all load conditions.
Select this component when a fixed 5.0 V output is required at currents up to 100 mA in high-reliability applications. It is suitable for designs needing operation down to -55°C. Compare line regulation and thermal resistance specifications against alternative regulators if tight voltage tolerance or heat dissipation in enclosed spaces is critical.
This part belongs to the LM140L family of three-terminal positive adjustable/fixed linear regulators. The 'AH' designation typically indicates a hermetic metal case package suitable for demanding environments. It serves as a robust solution for legacy or high-reliability designs where standard plastic packages may not suffice.
LM140LAH-12/NOPB: Same package and current rating but outputs 12 V. LM140LAH-15/NOPB: Same package and current rating but outputs 15 V. LM140LQML: Military grade variant with similar electrical characteristics but potentially different qualification standards.