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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：0°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 L78L05ACZ 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 5V 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, line regulation of 150 mV (VI = 7.3 to 20 V), load regulation of 60 mV (IO = 1 to 100 mA), and a typical quiescent current of 6 mA at 25 °C.
Feature Summary
- Internal current limiting and thermal shutdown for robust operation
- No external components required for basic regulation
- Designed as a replacement for Zener diode/resistor combinations
Applications
- Local or on-card voltage regulation
- Elimination of noise and distribution problems associated with single-point regulation
- Replacement for Zener diode and resistor networks
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and environmental compliance grade. Ensure the selected variant matches the required operating temperature range and electrical tolerances for the target application design.
Selection Notes
Select this component when a fixed 5V output is required with moderate current demands up to 100 mA. Consider the thermal resistance and power dissipation limits relative to the input-output voltage differential and ambient operating conditions to ensure reliable performance within the specified junction temperature range.
Part Context
This part belongs to the L78Lxx family of three-terminal positive regulators manufactured by STMicroelectronics. The 'AC' designation indicates a ±4% output voltage tolerance selection, distinguishing it from the standard 'C' version which offers ±8% tolerance. The family is designed for general-purpose linear regulation applications.
Replacement Considerations
NCV78L05ABPRMG
FAQ
What is the output voltage tolerance for the L78L05ACZ?
The 'AC' suffix indicates a tighter output voltage tolerance of ±4%, compared to the ±8% tolerance found in the standard 'C' version.
Does the L78L05ACZ require external capacitors to function?
According to the datasheet features, no external components are strictly required for the regulator to function, though typical application circuits often include input and output capacitors for stability.
