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Product Detailed Parameters
- Description：IC REG LINEAR 5V 800MA SOT-223-4
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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：0°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223-4
- Grade：-
- Qualification：-
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Overview
The LM1117MPX-5.0/NOPB is a fixed-output low-dropout linear regulator manufactured by Texas Instruments, providing a stable 5 V output with a maximum load current of 800 mA. It operates within an input voltage range up to 15 V and features a typical dropout voltage of 1.2 V at full load. The device incorporates internal current limiting and thermal shutdown protection mechanisms. It utilizes a Zener-trimmed bandgap reference to ensure output voltage accuracy within ±1%. The component is housed in a space-saving SOT-223 package and requires a minimum 10 µF tantalum capacitor at the output for stability.
Feature Summary
- Integrated current limiting and thermal shutdown protection
- Zener-trimmed bandgap reference for high voltage accuracy
- Low dropout voltage capability under heavy loads
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC systems
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify that the specific ordering suffix matches the required package type and temperature rating. Confirm RoHS compliance status through official documentation. Ensure the supplier provides valid traceability data. Check for any recent lifecycle notifications or obsolescence warnings directly from the manufacturer before finalizing procurement decisions.
Selection Notes
Select this component when a fixed 5 V rail is required with moderate current demands up to 800 mA. Consider the SOT-223 package constraints regarding thermal dissipation and PCB layout requirements. Evaluate the necessity for external capacitors to meet stability specifications. Compare against newer alternatives if improved ripple rejection or lower dropout characteristics are critical for the specific application design.
Part Context
This part belongs to the LM1117 family of low-dropout regulators designed for general-purpose power management applications. The series offers both adjustable and fixed voltage options across various packages including TO-220, TO-252, and WSON. The LM1117MPX variant specifically denotes the surface-mount SOT-223 configuration optimized for compact board designs while maintaining robust performance standards.
Replacement Considerations
The TLV1117 is identified as a newer drop-in alternative. For fixed output configurations in SOT-223 packages requiring improved functionality, the TLV761 is recommended as a replacement option.
