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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 800MA TO252-3
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.2V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：5 mA
- Current - Supply (Max)：10 mA
- PSRR：75dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252-3
- Grade：-
- Qualification：-
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Overview
The LM1117DTX-2.5/NOPB is a fixed-output low-dropout linear regulator from Texas Instruments, providing a stable 2.5 V output with a maximum load current of 800 mA. It operates within an input voltage range up to 15 V and features a typical dropout voltage of 1.2 V at full load. The device includes internal current limiting and thermal shutdown protection. It utilizes a Zener-trimmed bandgap reference for ±1% output accuracy and requires a minimum 10 µF tantalum capacitor at the output for stability.
Feature Summary
- Integrated current limiting and thermal shutdown mechanisms protect against overload conditions
- Zener-trimmed bandgap reference ensures precise output voltage regulation
- Low dropout characteristic maintains regulation under minimal input-to-output voltage differentials
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC conversion systems
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify that the ordering suffix /NOPB confirms lead-free and RoHS compliance status as per manufacturer specifications. Confirm the package designation DTX corresponds to the SOT-223 form factor required for your PCB layout. Ensure the fixed 2.5 V output variant matches the system voltage requirements, as adjustable or other fixed voltage versions exist within the same family.
Selection Notes
Select this component when a fixed 2.5 V rail is needed with up to 800 mA capability in a surface-mount SOT-223 package. Consider the 1.2 V dropout voltage requirement relative to the minimum input voltage available in the design. Verify that the application environment stays within the 0°C to +125°C operating temperature range specified for the standard LM1117 grade.
Part Context
This part belongs to the LM1117 series of 800-mA low-dropout linear regulators manufactured by Texas Instruments. The series offers both adjustable and fixed output options in various packages including TO-220, TO-252, SOT-223, and WSON. The LM1117 is designed as a drop-in replacement for the industry-standard LM317, sharing similar pin configurations but offering improved performance characteristics.
Replacement Considerations
The TLV1117 is identified as a newer drop-in alternative. For fixed output applications requiring improved functionality in the SOT-223 package, the TLV761 is suggested as a replacement option.
