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Product Detailed Parameters
- Description：IC REG LINEAR 5V 100MA TO92-3
- Series：-
- Mfr：STMicroelectronics
- Package：Cut Tape (CT),Tape & Box (TB)
- 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：0°C ~ 125°C
- Mounting Type：Through Hole
- Package / Case：TO-226-3, TO-92-3 (TO-226AA) Formed Leads
- Supplier Device Package：TO-92-3
- Grade：-
- Qualification：-
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Overview
The L78L05ACZ-AP is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, housed in a TO-92 package. It provides a fixed 5 V output with a maximum current of 100 mA. The device features internal current limiting and thermal shutdown for protection. Electrical characteristics include a line regulation of 150 mV (VI = 7.3 to 20 V) and load regulation of 60 mV (IO = 1 to 100 mA). Quiescent current is typically 6 mA at 25 °C. Supply voltage rejection is 49 dB at 120 Hz. Operating junction temperature ranges from 0 to 125 °C.
Feature Summary
- Internal current limiting and thermal shutdown mechanisms ensure robust operation under fault conditions.
- Designed as a fixed voltage regulator suitable for local or on-card regulation applications.
- Functions as a replacement for Zener diode/resistor combinations with improved performance.
Applications
- Local or on-card voltage regulation
- Elimination of noise and distribution problems associated with single-point regulation
- Replacement for Zener diode and resistor combinations
Procurement Notes
Verify the specific suffix 'AP' against official documentation to confirm packaging details, as standard datasheets may list bulk or tape-and-reel options without explicitly defining this suffix's unique handling requirements. Ensure compatibility with TO-92 through-hole mounting processes and validate thermal management strategies for the intended operating environment.
Selection Notes
Select this component for applications requiring a simple, fixed 5 V supply with up to 100 mA load capability. The ±4% output voltage accuracy (indicated by 'A') suits precision needs better than standard variants. Consider the TO-92 package constraints for power dissipation and verify input voltage remains within the 30 V maximum rating while maintaining sufficient dropout voltage margin.
Part Context
This part belongs to the L78Lxx family of three-terminal positive regulators manufactured by STMicroelectronics. The series is characterized by its simplicity, requiring no external components for basic operation. The L78L05 variant specifically targets 5 V logic and circuit supplies, offering a compact solution compared to larger linear regulators.
Replacement Considerations
- NCV78L05ABPRMG
- UA78L05ACLPR
FAQ
What is the typical quiescent current for the L78L05ACZ-AP?
The typical quiescent current is 6 mA at a junction temperature of 25 °C.
Does the L78L05ACZ-AP require external capacitors for stability?
No external components are required for basic operation, though input and output capacitors are recommended for optimal performance in typical applications.
