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Product Detailed Parameters
- Description：IC REG LINEAR 1.25V 800MA TO252
- Series：-
- Mfr：Texas Instruments
- Package：Bulk
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：1.25V
- Voltage - Output (Max)：13.8V
- Voltage Dropout (Max)：1.3V @ 800mA
- Current - Output：800mA
- 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
- Mounting Type：Surface Mount
- Package / Case：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252
- Grade：-
- Qualification：-
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Overview
The LM1117IDTX-ADJ 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 internal current limiting and thermal shutdown protection. It operates within an extended temperature range of -40°C to +125°C and utilizes a TO-252 (NDP) surface-mount package.
Feature Summary
- Adjustable output voltage configuration using external resistors
- Integrated current limiting and thermal shutdown protection
- Low dropout voltage performance under heavy loads
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC converters
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify the specific suffix J7002947 against official Texas Instruments documentation to confirm its exact meaning regarding tape-and-reel specifications or quality certifications. Ensure the component matches the LM1117I series electrical characteristics for the required industrial temperature range. Cross-reference the datasheet revision history to validate compatibility with current design standards.
Selection Notes
Select this component when an adjustable positive LDO is required for high-current applications up to 800 mA. It is suitable for designs needing tight line and load regulation across a wide temperature range. Consider the TO-252 package for efficient thermal dissipation in space-constrained PCB layouts requiring robust heat management capabilities.
Part Context
This part belongs to the LM1117 family of low-dropout regulators manufactured by Texas Instruments. The 'I' designation indicates an extended industrial temperature range (-40°C to +125°C). The 'ADJ' suffix specifies the adjustable output version, allowing flexible voltage setting. The 'TX' denotes the tape-and-reel packaging format for automated assembly.
Replacement Considerations
The TLV1117 is documented as a newer drop-in alternative. For fixed output SOT-223 configurations with improved functionality, the TLV761 is suggested as a replacement option.
