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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 1.5A TO220-3L
- Series：-
- Mfr：TAEJIN
- Package：Tube
- 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)：0.35V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：-
- Protection Features：Over Current, Over Temperature, Over Voltage, Reverse Polarity
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220-3L
- Grade：-
- Qualification：-
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Overview
The LM29150T-2.5 is a fixed-output low-dropout voltage regulator manufactured by TAEJIN (HTC Korea). It provides a stable 2.5V output with a maximum current capability of 1.5A. The device utilizes a PNP pass element to achieve a dropout voltage of 350mV at full load, ensuring high efficiency in battery-powered systems. It features an initial tolerance of ±1% and includes comprehensive protection against over-current, thermal overload, reverse polarity, and transient voltage spikes.
Feature Summary
- High current capability up to 1.5A with extremely fast transient response
- Low dropout voltage of 350mV at full load using PNP pass element technology
- Accurate 1% guaranteed initial output voltage tolerance
- Integrated reverse-battery and load dump protection mechanisms
Applications
- Battery powered equipment
- High-efficiency linear power supplies
- Post-regulator for switching supplies
- Automotive electronics
Procurement Notes
Verify the specific package variant required for the application, as the base model number corresponds to multiple physical packages including TO-220, TO-263, and TO-252. Confirm that the 'T' suffix indicates the TO-220 through-hole package configuration. Ensure the ordering information matches the exact 3-pin or 5-pin pinout needed, as the 5-pin versions include additional enable and flag functions not present in the standard 3-pin configuration.
Selection Notes
Select this component when a fixed 2.5V rail is required with high current drive capabilities. The PNP architecture offers superior dropout performance compared to traditional NPN designs. Consider the TO-220 package for its thermal characteristics if heatsinking is necessary. Verify input voltage constraints, as the maximum continuous operating voltage is 26V, while transient spikes can be tolerated up to 60V for short durations.
Part Context
This part belongs to the LM2915x family, which includes the LM29150 (fixed), LM29151 (fixed with enable/flag), and LM29152 (adjustable). The family is characterized by high accuracy and robust fault protection. The LM29150 specifically denotes the fixed-output version without logic-level control pins, making it suitable for simple, cost-sensitive applications requiring reliable regulation.
Replacement Considerations
LM29150R-2.5
FAQ
What is the minimum input voltage required for proper operation?
The minimum operating input voltage is determined by the sum of the nominal output voltage plus the dropout voltage, or 2.3V, whichever is greater.
Does the LM29150T-2.5 support logic-level shutdown control?
No, the LM29150 is a 3-pin fixed regulator without an Enable pin. Logic-level shutdown control is available only in the LM29151 and LM29152 variants.
How does the device handle over-temperature conditions?
The regulator includes thermal shutdown protection that disables the device when the junction temperature exceeds 125°C to prevent damage.
