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Product Detailed Parameters
- Description：IC REG LIN POS ADJ 800MA TO252-3
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- 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：TO-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252-3
- Grade：-
- Qualification：-
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Overview
The LM1117IDT-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 junction temperature range of -40°C to +125°C and features line regulation of 0.2% and load regulation of 0.4%. The component utilizes a TO-252 (DPAK) surface-mount package.
Feature Summary
- Adjustable output voltage configuration utilizing external resistors
- Integrated thermal shutdown and current limiting protection mechanisms
- Low dropout performance for efficient power conversion
- High ripple rejection capability for noise-sensitive applications
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC power supplies
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status as defined by Texas Instruments. Confirm the 'I' grade designation ensures operation down to -40°C, distinct from standard grades. Ensure the 'DT' package code corresponds to the required TO-252 footprint for PCB layout compatibility.
Selection Notes
Select this component when an adjustable positive LDO is required for currents up to 800 mA. The wide input voltage range accommodates various supply rails. Consider the thermal resistance characteristics of the TO-252 package for heat dissipation requirements in enclosed environments.
Part Context
This part belongs to the LM1117 family of low-dropout regulators. The 'I' suffix denotes industrial temperature range availability (-40°C to +125°C). The 'ADJ' variant offers flexible voltage setting compared to fixed-output versions. The 'NOPB' suffix confirms environmental compliance without lead or bromine.
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.
