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Product Detailed Parameters
- Description：IC REG LINEAR 2.5V 800MA SOT-223
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：20V
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.2V @ 800mA
- Current - Output：800mA
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：68dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：0°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-261-4, TO-261AA
- Supplier Device Package：SOT-223
- Grade：-
- Qualification：-
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Overview
The LM1117MPX-25NOPB is an 800 mA Low-Dropout Linear Regulator manufactured by onsemi. It provides a fixed positive output voltage of 2.5 V in a surface-mount SOT-223 package. The device features low dropout voltage characteristics, internal current limiting, and thermal shutdown protection to ensure reliable operation under overload conditions.
Feature Summary
- Fixed 2.5 V output voltage
- 800 mA maximum load current capability
- Integrated current limit and thermal shutdown protection
Applications
- Power management systems
- Battery-powered equipment
- General-purpose linear regulation
Procurement Notes
Verify the manufacturer designation carefully, as the LM1117 series is widely produced by Texas Instruments. Confirm that the specific part number corresponds to onsemi manufacturing rather than TI or other legacy sources. Ensure the suffix matches the required tape-and-reel packaging configuration for automated assembly processes.
Selection Notes
Select this component when a stable 2.5 V rail is required with moderate current demands up to 800 mA. Consider the thermal performance of the SOT-223 package relative to the expected power dissipation. Verify input voltage headroom to maintain regulation within the specified dropout limits.
Part Context
This component belongs to the LM1117 family of low-dropout regulators. The 'MPX' suffix indicates the SOT-223 surface-mount package variant. The '25' denotes the fixed 2.5 V output voltage setting. The 'NOPB' suffix typically signifies lead-free and halogen-free compliance.
Replacement Considerations
Cross-reference with LM1117MPX-2.5/NOPB from Texas Instruments for pin-compatible alternatives. Verify electrical specifications and thermal characteristics match before substitution.
