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Product Detailed Parameters
- Description：IC REG LINEAR 5V 100MA 8-SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- 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 LE50CD is a fixed linear voltage regulator from STMicroelectronics, part of the LEXX series. It provides a stable 5V output with a maximum current capacity of 100mA. The device features a positive topology and includes an inhibit function for power control. It operates within an input voltage range up to 18V and exhibits a typical voltage drop of 0.2V. Packaged in an 8-SOIC surface-mount case, it is designed for compact electronic applications requiring reliable low-dropout regulation.
Feature Summary
- Fixed 5V output voltage regulation
- Integrated inhibit control function
- Low dropout voltage characteristic
- Surface-mount SOIC-8 packaging
Applications
- Battery-powered equipment requiring stable 5V logic levels
- Portable devices utilizing linear regulation for noise-sensitive circuits
- General-purpose power supply conditioning in embedded systems
Procurement Notes
Verify the specific suffix (e.g., -TR) against your bill of materials, as tape-and-reel variants may differ in packaging but retain identical electrical characteristics. Confirm the component status, as some listings indicate obsolescence or end-of-life status. Ensure the supplier provides authentic STMicroelectronics documentation to validate the part number and manufacturing origin before purchase.
Selection Notes
Select this component when a fixed 5V output is required with minimal external components. The 100mA limit suits low-power digital loads. Consider the SOIC-8 package for space-constrained PCB layouts. Verify that the input voltage does not exceed the 18V absolute maximum rating and that thermal dissipation requirements are met within the operating environment.
Part Context
This device belongs to the LEXX series of low-dropout regulators from STMicroelectronics. These parts are characterized by high ripple rejection and stability with small output capacitors. The LE50CD specifically offers a fixed 5V rail, distinguishing it from adjustable variants within the same family. It serves as a cost-effective solution for basic voltage regulation tasks in consumer and industrial electronics.
Replacement Considerations
Check for direct pin-compatible substitutes within the LEXX series or other STMicroelectronics LDO families offering similar 5V/100mA specifications. Ensure any replacement maintains the inhibit functionality and SOIC-8 footprint if board space is constrained. Verify thermal performance matches the original design requirements.
