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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 800MA 8-WSON
- 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：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-WDFN Exposed Pad
- Supplier Device Package：8-WSON (4x4)
- Grade：-
- Qualification：-
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Overview
The LM1117ILD-ADJ/NOPB is an industrial-grade adjustable low-dropout linear regulator from Texas Instruments. It delivers up to 800 mA of output current with a maximum dropout voltage of 1.2 V at full load. The device allows output voltage adjustment between 1.25 V and 13.8 V using two external resistors. It operates within an extended temperature range of -40°C to +125°C. Key electrical characteristics include a line regulation of 0.3% maximum and load regulation of 0.5% maximum over the temperature range. The circuit incorporates a Zener-trimmed bandgap reference for ±1% output accuracy.
Feature Summary
- Adjustable output voltage configuration utilizing only two external resistors
- Integrated current limiting and thermal shutdown protection mechanisms
- Zener-trimmed bandgap reference ensuring high output voltage accuracy
- Extended industrial operating temperature range capability
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC converters
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify that the specific suffix ILD corresponds to the required package type, as standard LM1117I parts are available in SOT-223, TO-252, and WSON packages. Confirm the NOPB designation indicates lead-free and RoHS compliance. Ensure the ADJ variant matches the design requirement for programmable output rather than fixed voltage options. Cross-reference the datasheet revision date to confirm the availability of the specific package configuration requested.
Selection Notes
Select this component when an industrial temperature range is mandatory for linear regulation applications requiring up to 800 mA. The adjustable version provides flexibility for custom voltage rails compared to fixed variants. Consider the dropout voltage requirements relative to the input supply headroom. Evaluate thermal management needs based on the junction-to-ambient resistance of the chosen package. Verify stability requirements regarding output capacitor ESR values.
Part Context
This part belongs to the LM1117 family of low-dropout regulators produced by Texas Instruments. The 'I' suffix denotes the industrial temperature grade (-40°C to +125°C), distinguishing it from the commercial grade. The 'ADJ' indicates the adjustable output configuration, while 'NOPB' signifies non-plated lead and lead-free construction. The family supports multiple package formats including surface-mount and through-hole options.
Replacement Considerations
The TLV1117 is documented as a newer drop-in alternative. For fixed output configurations in SOT-223 packages, the TLV761 is listed as a drop-in replacement with improved functionality.
