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Product Detailed Parameters
- Description：IC REG LINEAR 5V 800MA SOT-223
- 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
- Grade：-
- Qualification：-
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Overview
The LM1117MP-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 precision with line regulation of 0.2% and load regulation of 0.4%. It includes integrated current limiting and thermal shutdown protection. The component is housed in a space-saving SOT-223 package and is designed for operation across a temperature range from 0°C to +125°C.
Feature Summary
- Provides fixed 5 V output with ±1% accuracy using a Zener trimmed bandgap reference
- Integrates 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 systems
- Ultrasound scanners
- Servo drive control modules
Procurement Notes
Verify the specific suffix 'MP' against the manufacturer's official documentation to confirm it denotes the commercial temperature grade (0°C to +125°C) rather than the industrial grade (-40°C to +125°C). Ensure the ordering part number matches the exact package configuration required for your PCB layout. Cross-reference the datasheet revision history to confirm no recent functional changes have been made to the device specifications.
Selection Notes
Select this component when a fixed 5 V rail is required with moderate current demands up to 800 mA. It serves as a direct replacement for older 7805-style regulators but offers significantly lower dropout voltage. Designers must account for the mandatory use of tantalum or low-ESR electrolytic capacitors on the output pin to prevent oscillation. Verify that the input-to-output differential remains above the specified dropout threshold under all operating conditions.
Part Context
This device belongs to the LM1117 family of low-dropout linear regulators produced by Texas Instruments. The family includes adjustable versions and various fixed voltage options such as 1.8 V, 2.5 V, and 3.3 V. The LM1117 series is widely used in power management applications due to its high performance and compact packaging options, including SOT-223 and WSON.
Replacement Considerations
The TLV1117 is documented as a newer drop-in alternative. For improved functionality in fixed output SOT-223 configurations, the TLV761 is also listed as a drop-in replacement.
