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Product Detailed Parameters
- Description：IC REG LINEAR 5V 100MA 8-SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：18V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：0.5V @ 100mA
- Current - Output：100mA
- Current - Quiescent (Iq)：1 mA
- Current - Supply (Max)：3 mA
- PSRR：76dB ~ 60dB (120Hz ~ 10kHz)
- Control Features：Enable
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The STMicroelectronics LE50ABD-TR is a fixed positive low-dropout (LDO) voltage regulator housed in an 8-SOIC surface-mount package. It provides a stable 5V output with a maximum current capacity of 100mA. The device features a typical dropout voltage of 200mV at full load, ensuring efficient regulation even with small input-output differentials. It operates within an input voltage range of 7V to 18V and maintains performance across an extended temperature range from -40°C to +125°C. Key electrical characteristics include a line regulation of 20mV and a load regulation of 50mV, supporting precise power management in compact electronic designs.
Feature Summary
- Integrated inhibit function for enhanced power control and system standby capabilities
- Very low dropout voltage design minimizes power dissipation and heat generation
- Fixed 5V output ensures stable supply for sensitive digital and analog circuits
Applications
- Battery-powered portable devices requiring efficient voltage regulation
- Embedded systems needing a reliable 5V logic supply rail
- Industrial control modules operating in extended temperature environments
Procurement Notes
Verify the specific suffix 'BD' confirms the SOIC-8 package and 100mA rating, as variations exist within the LE50 series. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the procurement channel sources directly from authorized distributors to guarantee component authenticity and traceability for critical applications.
Selection Notes
Select this component when a fixed 5V output is required with minimal quiescent current and space constraints favoring an 8-pin surface-mount package. It is suitable for applications where input voltage remains above 7V but close to the output level, leveraging its low dropout characteristic. Consider thermal management requirements based on the expected load current and ambient temperature conditions during operation.
Part Context
This part belongs to the LEXX family of very low-dropout regulators from STMicroelectronics. The family offers various output voltages and packages, including SO-8 and TO-92. The LE50ABD-TR specifically targets applications requiring a fixed 5V output with inhibit functionality, distinguishing it from standard LDOs by providing an additional control pin for power management flexibility.
Replacement Considerations
LE50ABZ-AP: A through-hole alternative in TO-92 package with similar electrical specifications.
FAQ
What is the purpose of the inhibit pin on the LE50ABD-TR?
The inhibit pin allows the user to disable the regulator output, reducing quiescent current consumption for power-saving modes.
What is the maximum input voltage for this regulator?
The maximum input voltage is 18V, beyond which the device may be damaged.
