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Product Detailed Parameters
- Description：IC REG LINEAR 5V 800MA TO252-3
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- 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-252-3, DPAK (2 Leads + Tab), SC-63
- Supplier Device Package：TO-252-3
- Grade：-
- Qualification：-
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Overview
The LM1117DT-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 thermal shutdown and current limiting for protection. The component is housed in a surface-mount TO-252 (DPAK) package and is rated for operation from 0°C to +125°C.
Feature Summary
- Provides a fixed 5 V output with ±1% initial accuracy using an integrated Zener-trimmed bandgap reference.
- Features internal current limiting and thermal shutdown to protect against overload conditions.
- Requires a minimum 10 µF tantalum output capacitor to ensure stability and improve transient response.
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' confirms lead-free and RoHS compliance status as per the manufacturer's datasheet. Confirm the 'DT' designation corresponds to the TO-252 package variant. Ensure the ordering part number matches the required fixed 5 V output specification. Cross-reference the revision history for any documentation updates that may affect implementation details.
Selection Notes
Select this component when a fixed 5 V rail is required with up to 800 mA capacity. It serves as a drop-in replacement for older three-terminal regulators like the 7805 series but offers lower dropout voltage. Consider the thermal resistance characteristics of the TO-252 package for heat dissipation requirements in the target application environment.
Part Context
This device belongs to the LM1117 family of low-dropout linear regulators. The family includes adjustable versions and other fixed voltage options such as 1.8 V, 2.5 V, and 3.3 V. The LM1117I variant extends the operating temperature range to -40°C. Newer alternatives like the TLV1117 or TLV761 are recommended for improved functionality or drop-in compatibility in SOT-223 packages.
Replacement Considerations
The TLV1117 is identified as a newer drop-in alternative. For fixed output configurations in SOT-223 packages with improved functionality, the TLV761 is suggested as a replacement option.
