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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 1.5A TO263-3
- Series：-
- Mfr：TAEJIN
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：26V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.6V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：20 mA
- Current - Supply (Max)：22 mA
- PSRR：-
- Control Features：-
- Protection Features：Load Dump, Over Current, Over Temperature, Reverse Polarity
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Supplier Device Package：TO-263-3
- Grade：-
- Qualification：-
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Overview
The LM29150R-2.5 is a fixed-output low-dropout voltage regulator manufactured by TAEJIN (HTC Korea). It provides a guaranteed 2.5V output with an initial tolerance of ±1%. The device supports up to 1.5A load current and features a dropout voltage of 350mV at full load. It operates within an input voltage range of 2.3V to 26V and includes internal protections against overcurrent, thermal overload, and reverse polarity.
Feature Summary
- High current capability of 1.5A with extremely fast transient response
- Low dropout voltage of 350mV at full load using PNP pass element technology
- Logic-controlled zero-current shutdown mode via the Enable pin
- Comprehensive protection including reverse-battery, load dump, and thermal shutdown
Applications
- Battery powered equipment
- High-efficiency linear power supplies
- Post-regulator for switching supplies
- Automotive electronics
Procurement Notes
Verify the package type matches the 'R' suffix (TO-263) and confirm the specific output voltage code corresponds to the required 2.5V rating. Ensure the ordering number aligns with the reel packaging format indicated in the manufacturer's documentation. Cross-reference the revision date to ensure compatibility with latest design specifications.
Selection Notes
Select this component when a stable 2.5V rail is required for moderate to high current loads. The TO-263 package offers lower thermal resistance compared to smaller surface-mount options. Consider the 5-pin variant if logic-level enable control or error flag signaling is necessary for system monitoring.
Part Context
This part belongs to the LM2915x series from HTC Korea, which includes fixed (LM29150), enabled (LM29151), and adjustable (LM29152) variants. The family utilizes a PNP pass element process to achieve superior dropout performance compared to older NPN designs. The 'R' designation specifically identifies the TO-263 surface-mount package configuration.
Replacement Considerations
Direct substitutes include other 1.5A LDO regulators with similar dropout characteristics and 2.5V fixed outputs. Verify pinout compatibility, particularly regarding the Enable and Ground pins, as package variations may exist between manufacturers.
