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Product Detailed Parameters
- Description：IC REG LINEAR 8V 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)：8V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：100mA
- Current - Quiescent (Iq)：5.5 mA
- Current - Supply (Max)：6 mA
- PSRR：45dB (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 L78L08ACZ is a three-terminal positive voltage regulator from the STMicroelectronics L78L series, housed in a TO-92 package. It provides a fixed output voltage of 8 V with an accuracy of ±8%. The device supports up to 100 mA output current and operates within a junction temperature range of 0 °C to 125 °C. Maximum input voltage is rated at 30 V for this output level. Internal protections include thermal overload shutdown and short-circuit limiting.
Feature Summary
- Integrated thermal overload protection and internal current limiting ensure robust operation under fault conditions.
- Designed as a direct replacement for Zener diode and resistor combinations, offering improved stability with lower quiescent current and reduced noise.
- Requires no external components for basic fixed-voltage regulation applications.
Applications
- Local or on-card voltage regulation
- Elimination of noise and distribution problems associated with single-point regulation
- Replacement for Zener diode/resistor networks
Procurement Notes
Verify that the specific part number matches the required tolerance grade (C for ±8%) and operating temperature range (0 to 125 °C). Confirm the package type is TO-92 and pin configuration aligns with the design schematic. Ensure the application input voltage does not exceed the absolute maximum rating of 30 V for the 8 V output variant.
Selection Notes
Select the L78L08ACZ when a fixed 8 V output with standard ±8% tolerance is sufficient. The 'A' suffix indicates the temperature range extension to -40 °C; if only 0 °C minimum is needed, verify compatibility. This component is suitable for low-current applications up to 100 mA where high efficiency is not the primary constraint.
Part Context
This component belongs to the L78Lxx family of three-terminal positive linear regulators manufactured by STMicroelectronics. The series includes various fixed output voltages ranging from 3.3 V to 24 V. The L78L08ACZ specifically denotes the 8 V output version with C-grade tolerance and AC temperature rating.
Replacement Considerations
Compatible substitutes within the same family include L78L08ABZ (extended temperature) and L78L08ABUTR (tape and reel). Cross-family replacements like LM78L08 may require verification of pinout and electrical characteristics against the original datasheet specifications.
