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Product Detailed Parameters
- Description：IC REG LINEAR 1.8V 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)：1.8V
- 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：-
Download product information
Overview
The LM29150R-1.8 is a fixed-output low-dropout voltage regulator manufactured by TAEJIN (HTC Korea). It provides a guaranteed 1.5A output current with a typical dropout voltage of 350mV at full load. The device features a 1% initial tolerance for output accuracy and includes internal protections against overcurrent, thermal overload, and reverse polarity. It utilizes a PNP pass element to achieve extremely fast transient response and very low ground current consumption.
Feature Summary
- High current capability up to 1.5A with low dropout performance
- Accurate 1% guaranteed initial output voltage tolerance
- Internal protection against overcurrent faults and thermal shutdown
- Reverse-battery and load dump protection capabilities
Applications
- Battery powered equipment
- High-efficiency linear power supplies
- Post-regulator for switching supplies
- Automotive electronics systems
Procurement Notes
Verify the specific package type corresponds to the 'R' suffix in the ordering information, which indicates the TO-263 form factor. Confirm that the required output voltage matches the fixed 1.8V specification. Ensure the application design accounts for the thermal resistance characteristics of the chosen package variant to maintain safe junction temperatures under maximum load conditions.
Selection Notes
Select this component when a high-current LDO with tight voltage tolerance is required. The 1.5A rating supports moderate to heavy loads. Consider the TO-263 package for surface-mount assembly needs. Verify input voltage ranges do not exceed the 26V operating limit. Evaluate thermal dissipation requirements based on the difference between input and output voltages at the expected load current.
Part Context
This part belongs to the LM2915x series from HTC Korea, designed as high-performance regulators using PNP pass elements. The series includes variants like LM29150 (fixed), LM29151 (fixed with enable), and LM29152 (adjustable). The 'R' designation specifically identifies the TO-263 package configuration within this product family.
Replacement Considerations
LM29150T-1.8 (TO-220 package)
FAQ
What is the minimum load current requirement?
The regulator requires a minimum load current of 5mA to swamp leakage currents and ensure proper operation across the operating temperature range.
How does the device handle overtemperature conditions?
Thermal shutdown disables the device when the die temperature exceeds the 125°C maximum safe operating temperature.
