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Product Detailed Parameters
- Description：IC REG LINEAR 5V 800MA 8-WSON
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- 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：-
Download product information
Overview
The LM1117ILDX-5.0/NOPB is a fixed-output low-dropout linear regulator manufactured by Texas Instruments, delivering a precise 5 V output at up to 800 mA load current. It operates within an industrial temperature range of -40°C to +125°C and utilizes the space-saving SOT-223 package. The device incorporates internal current limiting and thermal shutdown protection, ensuring robust performance in power management applications requiring stable voltage regulation under varying line and load conditions.
Feature Summary
- Integrated current limiting and thermal shutdown mechanisms for enhanced circuit protection
- Zener-trimmed bandgap reference ensures high output voltage accuracy
- Low dropout voltage capability allows efficient operation with minimal input-to-output differential
Applications
- Post-regulator for switching DC-DC converters
- Battery charger circuits
- Portable instrumentation power supplies
Procurement Notes
Verify that the ordering suffix 'NOPB' confirms lead-free and RoHS compliance status as specified by Texas Instruments. Confirm the 'I' grade designation matches the required -40°C to +125°C industrial operating temperature range for your specific application environment before finalizing procurement.
Selection Notes
Select this component when a fixed 5 V output is required with an 800 mA capacity. Ensure the input voltage provides sufficient headroom above the dropout voltage across the full operating temperature range. Verify that the SOT-223 package thermal characteristics are adequate for the expected power dissipation without excessive heatsinking.
Part Context
This part belongs to the LM1117 family of low-dropout regulators from Texas Instruments. The 'I' suffix denotes the industrial temperature grade (-40°C to +125°C), distinguishing it from the commercial grade variant. The 'X' indicates tape-and-reel packaging, while 'NOPB' signifies no lead-based plating and lead-free construction compliant with environmental standards.
Replacement Considerations
LM1117IDT-5.0/NOPB
FAQ
What type of output capacitor is required for stability?
A minimum of 10 µF tantalum capacitor is required at the output to improve transient response and ensure regulator stability.
How does the LM1117ILDX-5.0/NOPB handle overload conditions?
The device includes internal current limiting and thermal shutdown features to protect against over-current and overheating scenarios.
