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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 1A SOT-223-3L
- Series：-
- Mfr：TAEJIN
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.3V @ 1A
- Current - Output：1A
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：75dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223-3L
- Grade：-
- Qualification：-
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Overview
The LM1117GS-2.5 is a fixed positive low-dropout linear voltage regulator manufactured by HTC, designed to deliver up to 1A of output current. It provides a precise 2.5V output with a typical dropout voltage of 1.2V at full load. The device features line regulation of 0.1% and load regulation of 0.2%. It operates within an input voltage range up to 12V and includes internal current limiting and thermal shutdown protection for enhanced reliability.
Feature Summary
- Delivers continuous output current up to 1A across the full operating temperature range
- Provides fixed 2.5V output with low dropout voltage characteristics
- Includes built-in internal current limit and thermal shutdown protection
- Utilizes SOT-223-3L surface mount package for compact integration
Applications
- Active SCSI Terminators
- Portable and Notebook Computers
- SMPS Post Regulators
- Motherboard Clock Supplies
- Disk Drives
Procurement Notes
Verify that the component matches the specific HTC part number LM1117GS-2.5 rather than generic equivalents from other manufacturers. Confirm the package type is SOT-223-3L and check for moisture sensitivity level 3 compliance. Ensure the datasheet revision aligns with your design requirements before finalizing procurement orders.
Selection Notes
Select this regulator when a stable 2.5V supply is required for digital logic or peripheral circuits. Consider the thermal resistance limits of the SOT-223-3L package; adequate copper area or heat sinking may be necessary if power dissipation exceeds the junction-to-ambient rating. Verify that the input voltage remains within the specified maximum limits under all operating conditions.
Part Context
This component belongs to the LM1117 series of low-dropout regulators produced by HTC. The 'GS' suffix indicates the SOT-223-3L surface mount package, while '-2.5' specifies the fixed 2.5V output voltage variant. This series is engineered for battery-powered applications requiring efficient linear regulation with minimal quiescent current consumption.
Replacement Considerations
LM1117GS-ADJ (Adjustable version)
FAQ
What is the minimum output capacitance required for stability?
An output capacitor of 10µF or larger is required for output stability.
How does the dropout voltage vary with load current?
The dropout voltage increases with load current, reaching 1.2V at 1A output current.
