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Product Detailed Parameters
- Description：IC REG LINEAR 5.05V 1A TO3-2
- Series：-
- Mfr：Texas Instruments
- Package：Tray
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：5.05V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：1A
- Current - Quiescent (Iq)：5.2 mA
- Current - Supply (Max)：10 mA
- PSRR：-
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-55°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：TO-204AA, TO-3
- Supplier Device Package：TO-3-2
- Grade：-
- Qualification：-
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Overview
The LM109K STEEL/NOPB is a fixed 5V linear voltage regulator from the LM109 series, fabricated on a single silicon chip. It provides a maximum output current of 1A with a positive polarity configuration. The device operates within an extended temperature range of -55°C to +150°C and features a line regulation of 4mV and load regulation of 15mV. It utilizes a TO-3-2 (TO-39-3) through-hole package and maintains a typical PSRR of 50dB.
Feature Summary
- Extended temperature operation suitable for harsh environments
- High thermal stability with wide operating range
- Fixed 5V output for digital logic card regulation
Applications
- Local regulation on digital logic cards
- Harsh environment power management
- Military or aerospace electronic systems
Procurement Notes
Verify the specific suffix 'STEEL' against official Texas Instruments documentation to confirm material composition and environmental ratings. Ensure the ordering part number matches the exact datasheet specifications for the TO-3-2 package variant. Cross-reference the NOPB designation to confirm lead-free compliance status as defined in the manufacturer's product change notification.
Selection Notes
Select this component when fixed 5V regulation is required under extreme thermal conditions exceeding standard commercial limits. The TO-3-2 package offers robust mechanical integrity for high-reliability applications. Consider the 1A current capability and low dropout characteristics relative to the specific input voltage requirements of the target circuit design.
Part Context
This part belongs to the LM109 series of complete 5V regulators designed for local regulation on digital logic cards. The LM109 family is known for its reliability and performance in demanding applications. The LM109K STEEL/NOPB represents a specific variant within this series, distinguished by its extended temperature capabilities and specialized packaging.
Replacement Considerations
LM109H/NOPB
FAQ
What is the maximum operating temperature?
The maximum operating temperature is +150°C.
What is the output current capability?
The device supports a maximum output current of 1A.
