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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 1.5A TO220-3
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：29V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：15V
- Voltage Dropout (Max)：1.5V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：10 mA
- PSRR：75dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：0°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 LM1086CT-ADJ/NOPB is a positive adjustable low-dropout linear regulator manufactured by Texas Instruments. It provides up to 1.5A of output current with a maximum input voltage of 30V and an operating junction temperature range up to 125°C. The device features a typical dropout voltage of 1.3V at full load, with a maximum specified dropout of 1.5V. It utilizes a TO-220-3 through-hole package and includes internal zener-trimmed band gap reference circuitry for stable regulation.
Feature Summary
- Integrates current limiting and thermal shutdown protection mechanisms
- Features a zener-trimmed band gap reference for accuracy
- Compatible with industry-standard pin-out configurations
Applications
- General-purpose power supply regulation
- Battery-powered systems requiring efficient voltage conversion
- Post-regulation for switching power supplies
Procurement Notes
Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status as per the manufacturer's latest documentation. Confirm that the 'CT' designation corresponds to the TO-220 package variant required for your assembly process. Ensure the adjustable output configuration matches the external resistor network design intended for the target application voltage.
Selection Notes
Select this component when a robust, high-current LDO solution is needed for through-hole PCB designs. The adjustable output allows flexibility in setting precise voltage levels using external resistors. Consider the thermal performance requirements given the 1.5A capability and the necessity for adequate heat dissipation in the TO-220 package under heavy load conditions.
Part Context
This part belongs to the LM1086 family of 1.5A low-dropout regulators from Texas Instruments. The family offers both fixed and adjustable output versions in various packages including TO-220 and D2PAK. The LM1086 series is designed to replace older three-terminal adjustable regulators while offering improved efficiency and lower dropout voltages.
Replacement Considerations
LM1086IT-ADJ/NOPB (Industrial temperature grade variant)
FAQ
What is the minimum input voltage required for operation?
The minimum input voltage is 2.6V, which must be higher than the desired output voltage plus the dropout voltage.
Does the device include short-circuit protection?
Yes, the LM1086CT-ADJ/NOPB includes internal current limiting and thermal shutdown protection functions.
