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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 3A TO220-5L
- Series：-
- Mfr：TAEJIN
- Package：Tube
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：26V
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：25V
- Voltage Dropout (Max)：0.6V @ 3A
- Current - Output：3A
- Current - Quiescent (Iq)：35 mA
- Current - Supply (Max)：37 mA
- PSRR：-
- Control Features：Enable
- Protection Features：Load Dump, Over Current, Over Temperature, Reverse Polarity
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-5
- Supplier Device Package：TO-220-5L
- Grade：-
- Qualification：-
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Overview
The LM29302T is a high-current, adjustable low-dropout linear regulator manufactured by TAEJIN (HTC Korea). It features a PNP pass element providing a typical dropout voltage of 370mV at full load. The device supports an operating input voltage up to 26V and delivers a continuous output current of 3.0A. It includes logic-level enable control for zero-current shutdown and guarantees 1% initial output voltage tolerance. The component is housed in a TO-220 5-pin package.
Feature Summary
- High current capability with 3.0A output
- Low dropout voltage performance using PNP pass element
- Logic-level enable pin for zero-current shutdown mode
- Comprehensive protection against overcurrent, thermal overload, and reverse polarity
Applications
- Battery powered equipment
- Automotive electronics
- High-efficiency linear power supplies
- Post-regulator for switching supplies
Procurement Notes
Verify the manufacturer designation as TAEJIN or HTC Korea when sourcing this component. Confirm the specific package type corresponds to the TO-220 5-pin configuration required for the adjustable version. Ensure that the ordering suffix matches the intended application requirements regarding enable functionality and thermal management capabilities.
Selection Notes
Select the LM29302T when an adjustable output voltage is required alongside high current delivery. This model is suitable for designs needing precise regulation with minimal dropout voltage under heavy loads. Consider the thermal dissipation requirements carefully due to the high current capacity and ensure adequate heat sinking is implemented for sustained operation.
Part Context
This component belongs to the LM2930x series of very low dropout linear regulators. The family includes fixed voltage variants (LM29300) and versions with error flags (LM29301). The LM29302 specifically provides adjustable output control via an external resistor network while maintaining the series' robust protection features and high efficiency characteristics.
Replacement Considerations
Direct substitutes include other 3.0A adjustable LDOs from manufacturers such as Texas Instruments or STMicroelectronics. Verify pin compatibility and thermal resistance values before substitution. Ensure the replacement device meets the same input voltage range and dropout specifications.
