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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 800MA SOT-223
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Adjustable
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：13.8V
- 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-261-4, TO-261AA
- Supplier Device Package：SOT-223
- Grade：-
- Qualification：-
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Overview
The LM1117MP-ADJ/NOPB is an adjustable low-dropout linear regulator manufactured by Texas Instruments. It provides a maximum output current of 800 mA with a dropout voltage of 1.2 V at full load. The device allows output voltage adjustment from 1.25 V to 13.8 V using two external resistors. It operates within a temperature range of 0°C to +125°C and features a maximum input voltage of 15 V. The component utilizes a Zener-trimmed bandgap reference for accuracy and includes built-in current limiting and thermal shutdown protection.
Feature Summary
- Adjustable output voltage configuration utilizing external resistors
- Integrated current limiting and thermal shutdown protection mechanisms
- Low dropout performance maintaining regulation under minimal input-output differential
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC systems
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify the specific suffix 'MP' against the manufacturer's official documentation to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure the ordering information matches the required SOT-223 configuration and that the NOPB designation confirms lead-free and RoHS compliance as per the latest datasheet revision.
Selection Notes
Select this component when an adjustable positive voltage rail is required with high current capability. It serves as a direct replacement for the LM317 in many designs while offering lower dropout voltage and higher output current. Designers must ensure the use of appropriate output capacitors to maintain stability and account for thermal dissipation based on the voltage drop and load current.
Part Context
This part belongs to the LM1117 family of low-dropout regulators produced by Texas Instruments. The family includes fixed voltage variants and adjustable versions available in multiple packages such as SOT-223, TO-220, and WSON. The LM1117 series is designed for applications requiring efficient linear regulation with robust protection features and wide operating temperature ranges.
Replacement Considerations
The TLV1117 is identified as a newer drop-in alternative. For fixed output configurations in the SOT-223 package, the TLV761 offers improved functionality as a drop-in replacement.
