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Product Detailed Parameters
- Description：IC REG LINEAR 5V 2A TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：2A
- Current - Quiescent (Iq)：8 mA
- Current - Supply (Max)：-
- PSRR：54dB (120Hz)
- Control Features：-
- Protection Features：Over Current, Over Temperature, Short Circuit
- Operating Temperature：0°C ~ 150°C
- Mounting Type：Through Hole
- Package / Case：TO-220-3
- Supplier Device Package：TO-220
- Grade：-
- Qualification：-
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Overview
The L78S05CV-DG is a three-terminal positive linear voltage regulator from the STMicroelectronics L78 series. It provides a fixed 5 V output with a maximum continuous current capability of 2 A. The device accepts an input voltage range up to 35 V and operates within a temperature range of 0 °C to +125 °C. Packaged in a TO-220-3 through-hole housing, it integrates internal protection mechanisms including thermal overload shutdown, short-circuit limiting, and safe operating area (SOA) protection.
Feature Summary
- Provides local on-card regulation for stable power distribution
- Integrates thermal overload protection and short-circuit protection
- Includes safe operating area (SOA) protection for robust operation
Applications
- Local on-card voltage regulation
- General-purpose power supply circuits
- Embedded systems requiring fixed 5 V logic levels
Procurement Notes
Verify the specific suffix 'DG' against the manufacturer's official datasheet to confirm package details and compliance status. Ensure the procurement channel sources components directly from authorized distributors or verified suppliers to guarantee authenticity and traceability. Cross-reference the part number with the latest product documentation to confirm availability and manufacturing status.
Selection Notes
Select this component when a fixed 5 V output at up to 2 A is required in a through-hole configuration. Consider the thermal dissipation requirements associated with high input-to-output voltage differentials at full load. Verify that the application environment stays within the specified industrial temperature range and that adequate heat sinking is provided for sustained high-current operation.
Part Context
This component belongs to the L78xx family of three-terminal positive regulators. The 'S' designation typically indicates a higher current capability compared to standard variants like the L7805. These devices are designed to eliminate distribution problems associated with single-point regulation by providing localized power management directly on the circuit board.
Replacement Considerations
Compatible substitutes include the L78S05CV and other L78Sxx series regulators from STMicroelectronics. Verify pinout compatibility and thermal performance characteristics before substitution.
