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Product Detailed Parameters
- Description：IC REG LINEAR 5V 100MA TO92-3
- Series：-
- Mfr：STMicroelectronics
- Package：Bulk
- 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：-
- Protection Features：Over Current, Over Temperature
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA)
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The LE50ABZ-AP is a fixed positive linear voltage regulator from the LExxAB series by STMicroelectronics. It provides a fixed 5V output with a maximum current of 100mA in a TO-92-3 package. The device supports a maximum input voltage of 18V and features a typical dropout voltage of 0.5V at full load. Operating temperature range spans from -40°C to +125°C, with a maximum static current of 1.5mA.
Feature Summary
- Integrated overcurrent and thermal overload protection for robust operation
- High power supply rejection ratio (PSRR) for effective noise filtering
- Fixed 5V output configuration simplifies circuit design
Applications
- General purpose linear power regulation
- Battery-powered equipment requiring low quiescent current
- Pre-regulation stages for switching power supplies
Procurement Notes
Verify the specific suffix 'AP' against the required datasheet revision, as it denotes the specific tape-and-reel or cut-tape packaging variant. Confirm that the TO-92-3 pinout matches the target PCB footprint. Ensure the operating environment stays within the specified -40°C to +125°C junction temperature limits to maintain performance reliability.
Selection Notes
Select this component when a stable 5V rail is needed with minimal external components. The low 1.5mA static current makes it suitable for battery applications. Consider the 0.5V dropout voltage to ensure sufficient input-output differential under maximum load conditions. The TO-92 package offers cost-effective through-hole mounting for non-high-power scenarios.
Part Context
This part belongs to the LExx family of linear regulators, designed for general-purpose voltage regulation tasks. The LE50 variant specifically targets 5V output applications. It serves as a fundamental building block in power management circuits where simplicity and reliability are prioritized over high-efficiency switching architectures.
Replacement Considerations
LE50ABZT
FAQ
What is the maximum input voltage for the LE50ABZ?
The maximum input voltage is 18V.
Does the LE50ABZ include protection features?
Yes, it includes internal overcurrent and thermal overload protection.
