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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：-
Download product information
Overview
The LM1117MPX-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 features line regulation of 0.2% and load regulation of 0.4%. The component operates within a temperature range of -40°C to +125°C and is housed in a space-saving SOT-223 package.
Feature Summary
- Adjustable output voltage configuration utilizing only two external resistors
- Integrated current limiting and thermal shutdown protection mechanisms
- Zener trimmed band-gap reference ensuring high output voltage accuracy
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 'NOPB' indicates lead-free and RoHS compliance status as per official documentation. Confirm the 'I' grade designation for extended temperature operation (-40°C to +125°C) matches application requirements. Ensure the SOT-223 package variant aligns with PCB footprint specifications before procurement.
Selection Notes
Select this component when an adjustable positive LDO is required for currents up to 800 mA. Consider the 1.2 V dropout voltage relative to the input-output differential. Verify that the SOT-223 package thermal resistance supports the expected power dissipation without excessive heatsinking. Ensure compatibility with the required output voltage range between 1.25 V and 13.8 V.
Part Context
This part belongs to the LM1117 family of low-dropout linear regulators produced by Texas Instruments. The series includes fixed voltage options alongside adjustable variants. The LM1117MPX-ADJ/NOPB specifically denotes the adjustable version in surface-mount packaging, designed for efficient power management in compact electronic designs requiring stable regulated outputs.
Replacement Considerations
The TLV1117 is identified as a newer drop-in alternative. For improved functionality in fixed output SOT-223 configurations, the TLV761 is suggested as a replacement option.
