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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ 3A TO3
- Series：-
- Mfr：STMicroelectronics
- Package：Bulk
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：25V
- Voltage Dropout (Max)：-
- Current - Output：3A
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：-
- PSRR：86dB ~ 65dB (120Hz)
- 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
- Grade：-
- Qualification：-
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Overview
The LM150K is a three-terminal adjustable voltage regulator from STMicroelectronics, part of the LM150/LM250/LM350 family. It guarantees a 3A output current and features an adjustable output range down to 1.2V. The device offers typical line regulation of 0.005%/V and load regulation of 0.1%. It operates within a junction temperature range of -55°C to 150°C and utilizes a standard TO-3 transistor package.
Feature Summary
- Provides guaranteed 3A output current capability
- Features adjustable output voltage down to 1.2V
- Includes internal thermal regulation and constant current limit with temperature
- Utilizes standard 3-lead transistor package for easy mounting
Applications
- High current power supplies
- Local regulation cards
- On-card regulation
Procurement Notes
Verify component status as obsolete before procurement planning. Confirm exact ordering codes and temperature ranges against legacy documentation. Ensure compatibility with existing TO-3 mounting hardware and thermal interface materials. Review application hints for protection diodes and capacitor requirements to maintain stability in final designs.
Selection Notes
Select based on required operating temperature range; LM150 covers -55°C to 150°C. Consider thermal resistance values for heat sink design. Verify input-output voltage differential does not exceed 35V. Evaluate ripple rejection needs and potential requirement for adjustment terminal bypass capacitor for improved performance.
Part Context
The LM150K belongs to the LM150/LM250/LM350 series of three-terminal adjustable regulators. These devices are designed for high-current applications requiring stable voltage regulation. The K suffix denotes the specific TO-3 package variant with extended temperature capabilities suitable for industrial environments.
Replacement Considerations
LM250K (Extended Temperature: -25°C to 150°C), LM350K (Commercial Temperature: 0°C to 125°C). All variants share identical electrical characteristics and pinouts.
