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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)：30V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：5.5 mA
- Current - Supply (Max)：6 mA
- PSRR：49dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- 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 L78L05ABZ is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in a TO-92 package. It provides a fixed output voltage of 5 V with an output current capability up to 100 mA. The device features internal current limiting and thermal shutdown protection. Electrical characteristics include a maximum input voltage of 30 V for this voltage rating, a quiescent current of 6 mA at 25 °C, and line regulation of 150 mV. The 'A' suffix indicates a ±4% output voltage tolerance. Operating junction temperature range extends from -40 °C to 125 °C.
Feature Summary
- Internal current limiting and thermal shutdown protection
- No external components required for basic operation
- Fixed 5 V output with ±4% tolerance
- Low quiescent current consumption
Applications
- Local or on-card regulation
- Replacement for Zener diode/resistor combinations
- Battery-powered circuits
Procurement Notes
Verify the specific ordering suffix matches the required package type and tolerance grade. Confirm that the 'AB' designation aligns with the necessary extended temperature range and tighter voltage accuracy specifications compared to standard variants. Ensure compatibility with existing PCB footprints for the TO-92 configuration.
Selection Notes
Select this component when a fixed 5 V supply is needed with moderate current requirements up to 100 mA. The TO-92 package suits through-hole mounting applications where space allows. Consider the thermal resistance and power dissipation limits if operating near maximum load currents or high input voltages.
Part Context
This part belongs to the L78Lxx family of low-current positive voltage regulators. It shares functional similarities with other members like L78L05AC but offers improved accuracy and wider operating temperature ranges due to the 'A' grading. The series is designed for general-purpose regulation tasks requiring simplicity and reliability.
Replacement Considerations
Direct pin-compatible alternatives within the same series include L78L05ACZ for standard tolerance applications. Cross-manufacturer equivalents such as UA78L05ACLPR may be considered if electrical parameters match the design requirements.
