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Product Detailed Parameters
- Description：IC REG LINEAR 5V 5A TO252-3
- Series：-
- Mfr：TAEJIN
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.5V @ 5A
- Current - Output：5A
- Current - Quiescent (Iq)：-
- Current - Supply (Max)：10 mA
- PSRR：65dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252-3
- Grade：-
- Qualification：-
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Overview
The LM1084RS-5.0 is a fixed-output low dropout positive voltage regulator manufactured by TAEJIN (HTC Korea). It provides a stable 5.0V output with a maximum current capability of 5.0A. The device operates within an input voltage range up to 15V and features a maximum dropout voltage of 1.5V at full load. It utilizes a TO-252-3L surface mount package and includes internal thermal limiting and current protection circuits.
Feature Summary
- Provides a fixed 5.0V output with 5.0A current capability
- Features fast transient response and excellent line/load regulation
- Includes internal thermal shutdown and current limiting for overload protection
- Operates with a low dropout voltage of 1.5V at maximum output current
Applications
- Battery Charger
- Adjustable Power Supplies
- Constant Current Regulators
- Portable Instrumentation
- SMPS Post-Regulator
Procurement Notes
Verify the manufacturer designation, as this part number originates from HTC Korea/TAEJIN rather than Texas Instruments. Confirm the specific package variant (TO-252-3L) matches your PCB footprint requirements. Ensure that the sourcing channel provides genuine components with valid traceability documentation to avoid counterfeit parts in the supply chain.
Selection Notes
Select this component when a high-current 5A LDO is required in a compact surface-mount form factor. The TO-252-3L package offers a balance between thermal performance and board space efficiency compared to larger through-hole options. Consider the 1.5V dropout characteristic for applications where the input voltage headroom is limited relative to the 5.0V output requirement.
Part Context
This regulator belongs to the LM1084 series of three-terminal positive voltage regulators. The 'RS' suffix specifically denotes the TO-252-3L surface mount package variant, distinguishing it from the TO-263-3L leaded version. The series is designed for microprocessor applications requiring low dropout voltage and fast transient response capabilities.
Replacement Considerations
LM1084IS-5.0/NOPB (Texas Instruments)
FAQ
What is the minimum load current required for the adjustable version?
For the adjustable version of the LM1084 series, the minimum load current is specified as 7mA.
Does the LM1084 require external protection diodes?
Under normal operation, no protection diodes are needed between the adjustment pin and output or from output to input due to internal current limiting resistors.
