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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 L78L05CD is a three-terminal positive linear voltage regulator from the STMicroelectronics L78L series, providing a fixed 5V output with a maximum current of 100 mA. It features internal current limiting and thermal shutdown for robust protection. The device operates within an input voltage range up to 30 V and maintains regulation across a junction temperature range of 0°C to 125°C. It utilizes an 8-SOIC package and requires no external components for basic operation.
Feature Summary
- Internal current limiting and thermal shutdown mechanisms ensure inherent device protection against overload conditions.
- Designed as a fixed voltage regulator requiring no external components for standard local or on-card regulation applications.
- Capable of replacing Zener diode/resistor combinations while offering lower quiescent current and reduced noise.
Applications
- Local or on-card voltage regulation to eliminate noise associated with single-point regulation systems.
- Replacement for Zener diode and resistor combination circuits in low-current power supply designs.
- Integration with external power pass elements to construct high-current voltage regulators.
Procurement Notes
Verify the specific suffix 'C' indicates ±8% output voltage tolerance and 'D' denotes the SO-8 package configuration. Confirm that the ordering part number matches the required pinout and thermal characteristics for the target PCB layout. Ensure compatibility with the intended operating temperature range and input voltage constraints before finalizing procurement.
Selection Notes
Select this component when a fixed 5V output at up to 100 mA is required in an 8-SOIC surface-mount package. Consider the ±8% output voltage tolerance and the specific dropout voltage characteristics relative to the load current. Evaluate thermal dissipation requirements based on the input-output voltage differential and ambient operating conditions.
Part Context
This component belongs to the L78L series of three-terminal positive regulators manufactured by STMicroelectronics. The series offers various fixed output voltages and is designed for general-purpose linear regulation tasks. The L78L variant specifically targets applications requiring moderate current capabilities in compact packages compared to the higher-current L78 series.
Replacement Considerations
Direct replacements include other manufacturers' L78L05 variants in compatible packages, such as MC78L05ABDR2G or NCV78L05ABDR2G from onsemi, provided pinouts and electrical tolerances align with the design requirements.
