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STMICROELECTRONICS L78S18CV Voltage Regulator

The L78S series of three-terminal positive voltage regulators is available in TO-220 package with fixed output voltages ranging from 5V to 24V. Capable of providing up to 2 A output current, these regulators feature internal current limiting, thermal shutdown, and safe area protection, ensuring durability in various applications. They are ideal for local on-card regulation, eliminating distribution issues and supporting external components for adjustable voltages. Suitable heat sinking enables over 2 A current delivery, making them versatile and reliable power regulation solutions.

Authorized Distributors
Source:Newark
Part No:L78S18CV
Stock:35
Inv Date:06-11-2026
Price: Unit price: $0.892
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Part No:L78S18CV
Stock:0
Inv Date:06-12-2026
Price: N/A
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Part No:L78S18CV
Stock:0
Inv Date:06-11-2026
Price: Unit price: $0.67
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Part No:L78S18CV
Stock:500
Inv Date:06-11-2026
Price: Unit price: $0.54
Buy/RFQ:
Part No:L78S18CV
Stock:500
Inv Date:06-12-2026
Price: N/A
Buy/RFQ:

STMICROELECTRONICS L78S18CV Voltage Regulator Specifications:

  • Output Current: Up to 2 A
  • Output Voltages: 5V, 7.5V, 9V, 10V, 12V, 15V, 18V, 24V
  • Package: TO-220
  • Thermal Protection: Yes
  • Short Circuit Protection: Yes
  • Output Transition SOA Protection: Yes
  • Input Voltage Range: Up to 35V (max 40V for some models)
  • Maximum Junction Temperature: 150°C
  • Storage Temperature Range: -65°C to 150°C
  • Power Dissipation: Internally limited

Buy the Buy STMicroelectronics L78S Series Voltage Regulator Part Number L78S18CV Online

Order the STMicroelectronics L78S18CV voltage regulator online today. Known for reliable power regulation, it features internal current limiting, thermal shutdown, and safe area protection. Suitable for local on-card regulation, this regulator supports voltages from 5V to 24V, delivering up to 2A of current with proper heat sinking. Its robust design makes it ideal for a wide range of industrial, consumer, and electronic applications where stable voltage output and durability are essential. Purchase now for fast delivery and consistent performance.

Get STMicroelectronics L78S18CV today—built for precision and long-lasting durability in power regulation applications.

Frequently Asked Questions

Where can I buy STMICROELECTRONICS L78S18CV?

You can click on the BUY or RFQ button to purchase L78S18CV from an authorized STMICROELECTRONICS distributor.

How do I troubleshoot issues or seek technical support for part L78S18CV?

You can download the L78S18CV datasheet or visit the STMICROELECTRONICS website for support.

Who is the manufacturer of L78S18CV?

STMICROELECTRONICS

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