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Product Detailed Parameters
- Description：IC REG LINEAR 5V 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)：5V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：-
- Current - Output：500mA
- Current - Quiescent (Iq)：6 mA
- Current - Supply (Max)：-
- PSRR：62dB (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 L78M05CV is a three-terminal positive linear voltage regulator from the STMicroelectronics L78M series. It provides a fixed 5V output with a maximum current capability of 500mA. The device accepts an input voltage range from 7V to 35V and operates within a temperature range of 0°C to +150°C. Key electrical parameters include a typical static current of 6mA, a line regulation of 100mV, and a load regulation of 100mV. It features a power supply rejection ratio (PSRR) of 62dB at 120Hz and utilizes a TO-220-3 through-hole package.
Feature Summary
- Integrates internal thermal overload protection to prevent damage during excessive heat conditions.
- Includes short circuit protection to safeguard the device against output faults.
- Features output transition safe area protection for enhanced reliability under varying loads.
Applications
- Local on-card voltage regulation in electronic circuits
- General-purpose power supplies requiring stable 5V DC output
- Embedded systems and industrial control equipment
Procurement Notes
Verify the specific suffix 'CV' corresponds to the standard commercial grade version when sourcing. Confirm that the TO-220-3 package matches the target PCB footprint requirements. Ensure the supplier provides documentation confirming RoHS compliance status for the specific manufacturing batch. Cross-reference the manufacturer part number directly with official STMicroelectronics catalogs to avoid counterfeit components.
Selection Notes
Select this component when a fixed 5V output with up to 500mA capacity is required. It is suitable for applications where input voltages vary between 7V and 35V. Consider the thermal performance of the TO-220 package for heat dissipation needs. This regulator is appropriate for designs prioritizing simplicity and built-in protection features over high efficiency.
Part Context
This device belongs to the L78Mxx family of three-terminal positive regulators produced by STMicroelectronics. The series is designed for local on-card regulation, eliminating distribution problems associated with single-point regulation. The L78M variants typically offer moderate current capabilities compared to the higher-current L78 or lower-dropout LDO alternatives.
Replacement Considerations
Compatible substitutes include other manufacturers' equivalents such as LM78M05CT or MC78M05CDT. Verify pinout compatibility and thermal characteristics before substitution. Ensure the replacement part meets the same 500mA output current and 35V maximum input voltage specifications.
