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Product Detailed Parameters
- Description：IC REG LINEAR 5V 800MA TO263
- 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-263-4, D2PAK (3 Leads + Tab), TO-263AA
- Supplier Device Package：TO-263 (DDPAK-3)
- Grade：-
- Qualification：-
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Overview
The LM1117SX-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 ensures high accuracy with line regulation of 0.2% and load regulation of 0.4%. It includes built-in current limiting and thermal shutdown protection. The component is housed in a space-saving SOT-223 package.
Feature Summary
- Provides a fixed 5 V output with ±1% accuracy using a Zener trimmed bandgap reference.
- Features internal current limiting and thermal shutdown for robust circuit protection.
- Requires a minimum 10 µF tantalum output capacitor to ensure stability and transient response.
Applications
- AC drive power stage modules
- Merchant network and server PSU
- Industrial AC/DC power supplies
Procurement Notes
Verify the specific suffix 'SX' against the manufacturer's official orderable addendum to confirm the exact tape-and-reel packaging configuration. Ensure the procurement documentation explicitly lists the NOPB designation to confirm lead-free and RoHS compliance status as defined by Texas Instruments standards.
Selection Notes
Select this component when a fixed 5 V rail is required with up to 800 mA capacity. Verify that the application can accommodate the mandatory 10 µF tantalum output capacitor requirement. Confirm that the SOT-223 package thermal characteristics are sufficient for the expected power dissipation without additional heatsinking.
Part Context
This part belongs to the LM1117 family of low-dropout regulators from Texas Instruments. The family offers both adjustable and fixed voltage options in various packages including TO-220, TO-252, and WSON. The LM1117SX variant specifically utilizes the SOT-223 form factor for surface-mount applications.
Replacement Considerations
Texas Instruments recommends the TLV1117 as a newer drop-in alternative. For improved functionality in the SOT-223 package, the TLV761 is suggested as a replacement option.
