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Product Detailed Parameters
- Description：IC REG LINEAR POS ADJ 5A TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：30V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：28.5V
- Voltage Dropout (Max)：1.5V @ 5A
- Current - Output：5A
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：72dB (120Hz)
- Control Features：-
- Protection Features：Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The LD1084V is a positive low-dropout linear voltage regulator manufactured by STMicroelectronics. It provides a fixed output voltage with a maximum continuous output current of 5A. The device operates within an input voltage range up to 30V and maintains regulation across a wide temperature range from -40°C to +125°C. Key electrical specifications include a maximum dropout voltage of 1.5V at full load, a static current of 10mA, and line/load regulation values of 6mV and 15mV respectively. The unit features thermal overload and short-circuit protection mechanisms.
Feature Summary
- Integrated thermal overload and short-circuit protection for enhanced reliability
- Fixed positive output configuration suitable for standard power supply designs
- Wide operating junction temperature range supporting industrial environments
Applications
- General-purpose power supply circuits requiring stable 3.3V rails
- Battery-powered systems utilizing low-dropout regulation
- Embedded logic level shifting applications
Procurement Notes
Verify component authenticity through authorized distribution channels due to discontinued status. Confirm package variant compatibility during integration as the family includes multiple housing options. Review latest datasheet revisions for any updates to absolute maximum ratings or handling instructions prior to final design approval.
Selection Notes
Select this component when a robust 5A LDO solution is required for fixed voltage applications. Ensure input-output differential voltage remains within specified limits to prevent excessive power dissipation. Consider thermal management requirements based on ambient conditions and PCB copper area availability for adequate heat sinking.
Part Context
This part belongs to the LD1084 series of high-current positive regulators. The 'V' suffix typically denotes the TO-220 through-hole package variant within the product family. It serves as a legacy alternative to newer PMIC solutions in established industrial and consumer electronics designs requiring simple linear regulation.
Replacement Considerations
Public confirmed substitute part numbers include LM1084IT-3.3/NOPB and LT1084CT-3.3#PBF. Verify pinout compatibility and thermal performance characteristics before substitution.
