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Product Detailed Parameters
- Description：IC REG LINEAR 15V 500MA TO220
- Series：-
- Mfr：STMicroelectronics
- Package：Tube
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：35V
- Voltage - Output (Min/Fixed)：15V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：500mA
- Current - Quiescent (Iq)：6 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 L78M15CV-DG is a three-terminal positive linear voltage regulator from the STMicroelectronics L78M series. It provides a fixed output voltage of 15 V with a maximum output current capability of 0.5 A. The device features internal thermal overload protection, short-circuit current limiting, and safe operating area (SOA) protection to ensure reliability under fault conditions. It operates within an input voltage range up to 35 V and supports junction temperatures up to 125 °C. The component is housed in a TO-220 package for through-hole mounting.
Feature Summary
- Fixed 15 V output voltage regulation
- Integrated thermal shutdown and current limiting protection
- Local on-card regulation capability
Applications
- Power supply modules requiring stable 15 V rails
- Embedded system biasing circuits
- Industrial control equipment power distribution
Procurement Notes
Verify the specific suffix 'DG' against the manufacturer's official datasheet to confirm pinout compatibility and packaging specifications. Ensure that the procurement documentation explicitly references the L78M series characteristics rather than the standard L78 or high-current L78S series, as electrical ratings differ significantly between these product lines.
Selection Notes
Select this component when a fixed 15 V output is required with moderate current demands up to 0.5 A. It is suitable for applications where local regulation eliminates distribution losses associated with single-point regulation. Consider thermal management requirements given the linear topology and potential power dissipation at higher input voltages.
Part Context
This part belongs to the L78M family of three-terminal positive regulators, designed for general-purpose linear voltage regulation. Unlike the standard L78 series which typically supports 1.5 A, the L78M variant is optimized for lower current applications around 0.5 A, offering a balance between performance and thermal constraints in compact through-hole packages.
Replacement Considerations
Cross-reference with other manufacturers' 15 V, 0.5 A linear regulators such as the LM78M15. Verify that substitute components match the TO-220 pin configuration and thermal protection features before implementation.
