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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 1.5A TO252-5L
- Series：-
- Mfr：TAEJIN
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：26V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：25V
- Voltage Dropout (Max)：0.6V @ 1.5A
- Current - Output：1.5A
- Current - Quiescent (Iq)：20 mA
- Current - Supply (Max)：22 mA
- PSRR：-
- Control Features：Enable, Error Flag
- Protection Features：Load Dump, Over Current, Over Temperature, Reverse Polarity
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-252-6, DPAK (5 Leads + Tab)
- Supplier Device Package：TO-252-5L
- Grade：-
- Qualification：-
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Overview
The LM29152RS is a high-current, adjustable low-dropout voltage regulator manufactured by HTC Korea TAEJIN Technology Co. It utilizes a PNP pass element to achieve a typical dropout voltage of 350mV at full load and features very low ground current. The device supports an operating input voltage up to 26V and delivers a maximum output current of 1.5A. It includes logic-level enable control and an error flag for monitoring regulation status. The component is housed in a TO-252 (SOT-223) package with five leads.
Feature Summary
- Adjustable output voltage capability using external resistors
- Logic-level enable pin for zero-current shutdown mode
- Error flag output signals when output falls out of regulation
- Protection against over-current faults, reversed polarity, and thermal overload
Applications
- Battery powered equipment
- High-efficiency linear power supplies
- Automotive electronics
- Post-regulator for switching supplies
Procurement Notes
Verify the specific ordering suffix matches the required tolerance and packaging format. Confirm the manufacturer is HTC Korea TAEJIN Technology Co. Ensure the part number corresponds to the TO-252 package variant. Check datasheet revision dates for updated electrical characteristics before finalizing procurement specifications.
Selection Notes
Select this component for applications requiring high current capability with minimal voltage drop. The adjustable version allows flexible output voltage programming between 1.24V and 25V. Consider the thermal resistance of the TO-252 package for heat dissipation requirements. Ensure the input voltage remains within the 26V operating limit.
Part Context
This regulator belongs to the LM2915x family, which includes fixed voltage variants like the LM29150 and LM29151. The LM29152 specifically denotes the adjustable output configuration within this series. All variants share common protection features and dropout performance characteristics defined by the PNP pass element technology.
Replacement Considerations
Compatible substitutes include the MIC29152WT from Microchip. Verify pin compatibility and electrical parameters such as dropout voltage and current limits before substitution.
FAQ
What is the minimum load current required for proper operation?
The LM29152 requires a minimum load current of 5mA to swamp leakage currents and maintain stable output voltage across the operating temperature range.
How does the error flag function?
The error flag is an open-collector output that pulls low when the output voltage drops approximately 5% below its expected value, indicating conditions such as over-current or low input voltage.
