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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 800MA TO263
- 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-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Supplier Device Package：TO-263 (DDPAK-3)
- Grade：-
- Qualification：-
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Overview
The LM1117SX-ADJ/NOPB is an adjustable low-dropout linear regulator from Texas Instruments, capable of delivering up to 800 mA of output current. It features a dropout voltage of 1.2 V at full load and supports output voltages ranging from 1.25 V to 13.8 V via two external resistors. The device includes integrated current limiting and thermal shutdown protection. It operates within a temperature range of -40°C to +125°C and utilizes a SOT-223 package.
Feature Summary
- Adjustable output voltage configuration using only two external resistors
- Integrated current limiting and thermal shutdown for circuit protection
- Low dropout voltage performance under high load conditions
- Zener trimmed band-gap reference ensuring precise output 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 'SX' against the manufacturer's official orderable addendum to confirm the exact package type and tape-and-reel specifications. Ensure the component meets RoHS compliance requirements as indicated by the 'NOPB' designation. Cross-reference the datasheet revision history to confirm the availability of the specific manufacturing lot and any recent documentation updates.
Selection Notes
Select this component when an adjustable positive LDO with 800 mA capability is required. Ensure the input-to-output differential voltage remains above the specified dropout value across the entire operating temperature range. Verify that the application requires the industrial temperature grade (-40°C to +125°C) associated with the 'I' variant characteristics often linked to this part number structure.
Part Context
This device belongs to the LM1117 series of low-dropout linear regulators produced by Texas Instruments. The series offers both fixed and adjustable output versions in various packages including SOT-223 and WSON. It serves as a legacy alternative to newer devices like the TLV1117 and TLV761, which are recommended as drop-in replacements for improved functionality.
Replacement Considerations
The TLV1117 is identified as a newer drop-in alternative. For fixed output configurations in the SOT-223 package, the TLV761 is suggested as a replacement offering improved functionality.
