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Product Detailed Parameters
- Description：IC REG LINEAR 5V 1A TO3-2
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：25V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：1A
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-55°C ~ 150°C (TA)
- 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/883 is a 5-volt regulator fabricated on a single silicon chip, designed for local regulation on digital logic cards. It operates within a military temperature range of -55 °C to 125 °C and utilizes a TO-3 power package with a ceramic body. The device provides an output current exceeding 1 A and includes internal thermal overload protection and current limiting.
Feature Summary
- Provides complete 5V regulation on a single silicon chip
- Compatible with TTL and DTL worst-case specifications
- Includes internal thermal overload protection
- Features current limiting for peak output safety
Applications
- Local regulation on digital logic cards
- Precision regulators using control elements
- Military-grade power supply circuits
Procurement Notes
Verify the specific manufacturer source, as National Semiconductor is now part of Texas Instruments. Confirm that the /883 suffix indicates compliance with MIL-STD-883 standards. Ensure the TO-3 package configuration matches the required heat sinking provisions for currents exceeding 200 mA.
Selection Notes
Select this component when fixed 5V regulation is required for digital logic applications. It eliminates distribution problems associated with single-point regulation. Verify that the input bypassing requirements are met if the regulator is located far from the filter capacitor.
Part Context
This device belongs to the LM109 series of 5-volt regulators. It is designed to be easy to use with minimal external components. The series offers good rejection of load or line transients typical in TTL logic environments.
