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Product Detailed Parameters
- Description：IC REG LINEAR 5V 100MA 8-SOIC
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- 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：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The L78L05ACD is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, manufactured in full production. It provides a fixed 5 V output with a maximum current of 100 mA and operates within an input voltage range up to 30 V. The device features ±4% output voltage tolerance (A suffix) and includes internal thermal overload protection and short-circuit protection. It requires no external components for basic operation and is available in SO-8 packages.
Feature Summary
- Integrated thermal overload and short-circuit protection mechanisms ensure robust operation under fault conditions.
- Fixed 5 V output with ±4% accuracy eliminates the need for external adjustment components.
- Designed as a direct replacement for Zener diode/resistor combinations, offering lower quiescent current and reduced noise.
Applications
- Local or on-card regulation to eliminate noise associated with single-point regulation systems.
- Replacement for Zener diode and resistor voltage reference circuits.
- Configuration with power pass elements to create high-current voltage regulators.
Procurement Notes
Verify the specific package type and ordering suffix against the manufacturer's official datasheet before procurement. Confirm that the 'D' suffix corresponds to the required SO-8 package variant. Ensure compatibility with the intended operating temperature range and input voltage specifications for the target application.
Selection Notes
Select this component when a fixed 5 V supply is required with moderate current demands up to 100 mA. The ±4% tolerance (A suffix) suits applications needing tighter voltage accuracy than standard ±8% variants. Consider the SO-8 package for surface-mount assembly requirements and verify thermal dissipation capabilities based on the PCB copper area.
Part Context
This part belongs to the L78L series of three-terminal positive regulators. The series offers various fixed output voltages ranging from 3.3 V to 24 V. The L78L05ACD specifically denotes the 5 V output version with improved accuracy and SO-8 packaging, designed for general-purpose power management in consumer and industrial electronics.
Replacement Considerations
Direct replacements include other manufacturers' 78L05 variants in SO-8 packages, such as MC78L05ABDR2G or UA78L05ACLPR, provided they meet the same electrical specifications and pinout configuration.
