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Product Detailed Parameters
- Description：IC REG LINEAR 5V 1.5A TO220-3
- 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)：1.5V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：10 mA
- PSRR：68dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220-3
- Grade：-
- Qualification：-
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Overview
The LM1086IT-5.0/NOPB is a fixed positive low dropout linear regulator manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It provides a nominal 5V output with a maximum load current of 1.5A. The device operates within an input voltage range of 2.6V to 27V and features a typical dropout voltage of 1.3V at full load. It utilizes a TO-220 three-pin through-hole package and supports operation from -40°C to +125°C.
Feature Summary
- Integrated thermal shutdown and current limiting protection mechanisms
- Zener trimmed band gap reference for stable regulation
- Compatible with industry standard LM317 pinout configurations
Applications
- General purpose power supply regulation
- Battery-powered systems requiring efficient step-down conversion
- Post-regulation for switching power supplies
Procurement Notes
Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the suffix NOPB indicates lead-free and RoHS compliance. Ensure the specific IT variant matches the required TO-220 through-hole package and 5.0V fixed output specification for your design.
Selection Notes
Select this component when a 1.5A capacity is sufficient and a fixed 5V rail is required. The TO-220 package facilitates heat dissipation for moderate power applications. Consider the 1.3V dropout characteristic to ensure adequate input-output differential under all operating conditions.
Part Context
This regulator belongs to the LM1086 family of low dropout positive regulators. The family includes adjustable versions and various fixed output voltages. The LM1086 series is designed to replace older linear regulators while offering improved efficiency and lower dropout voltages compared to traditional three-terminal regulators.
Replacement Considerations
LM1086IT-5.0/NOPB is functionally equivalent to LM1086IT-5.0. Verify compatibility with other LM1086 variants sharing the same package and output voltage.
