L7805CV – 5V Fixed Voltage Regulator for Power Supply & Industrial Electronics

L7805CV – 5V 1.5A Linear Voltage Regulator for Power Supply & Industrial Electronics

The STMicroelectronics L7805CV is a robust and widely adopted 5V fixed linear voltage regulator designed to provide stable and low-noise output power for a broad range of electronic applications. Delivering up to 1.5A of output current, it is ideal for powering microcontrollers, sensors, analog circuits, communication modules, and embedded systems. Housed in a TO-220 package, the L7805CV ensures excellent thermal performance and long-term reliability. The regulator features built-in thermal shutdown, short-circuit protection, and safe-area compensation, making it highly resistant to fault conditions. According to the official datasheet (Electrical Characteristics, page 13), the device offers a typical 2V dropout voltage @ 1A with strong load and line regulation performance. Its minimal external component requirements make it a preferred solution for industrial power supplies, consumer devices, communication systems, and embedded controllers.

Key Features

• Fixed 5V regulated output
• Up to 1.5A output current
• Low dropout voltage (typically 2V @ 1A)
• Integrated over-temperature and short-circuit protection
• High PSRR (62dB @ 120Hz)
• Low output noise for analog and digital use
• Supports input voltage up to 35V
• TO-220 package with high thermal efficiency

Quick Information

• Brand: STMicroelectronics
• Part Number: L7805CV
• Category: PMIC – Linear Voltage Regulators
• Package: TO-220-3
• Lifecycle: Active
• Stock: In stock
• Lead Time: 24–48 hours (depending on quantity)

L7805CV Datasheet

Download L7805CV Datasheet PDF The datasheet provides complete technical details including electrical parameters, protection behavior, typical performance curves, recommended test circuits, and mechanical drawings. Key electrical data such as dropout voltage, PSRR, and quiescent current can be found in the L7805C Electrical Characteristics table.

Specifications

Parameter	Value
Operating Input Voltage	Up to 35V
Output Voltage	5V fixed
Maximum Output Current	1.5A
Dropout Voltage	2V @ 1A
Quiescent Current	8mA
PSRR	62dB @ 120Hz
Operating Temperature	0°C to 125°C
Power Dissipation	Internally Limited
Package	TO-220-3

Applications

• Power Supply Systems: Stable 5V output stage for AC/DC or DC/DC power modules.
• Industrial Automation: PLCs, sensors, and motor control power rails.
• Consumer Electronics: Chargers, audio devices, set-top boxes, and appliances.
• Embedded Systems: Arduino, STM32 boards, robotics, and controllers.
• Automotive Electronics: Dashboard circuits and telematics modules.
• Communication Equipment: RF modules, Wi-Fi routers, and transceivers.
• IoT Devices: Gateways, sensor nodes, and wireless modules.

Alternatives / Equivalent Parts

MC7805CT (ON Semiconductor)

A widely used 5V fixed regulator offering up to 1A output with built-in thermal and short-circuit protection. The TO-220 package and electrical characteristics closely match the L7805CV, making it an excellent drop-in replacement for consumer, industrial, and embedded applications.

LM7805 (Texas Instruments)

TI’s LM7805 provides reliable 5V regulation with strong line/load stability and typical output currents between 1–1.5A depending on thermal design. It shares the same TO-220 footprint and is well-suited for power supplies, controller boards, and analog systems.

KA7805 (Fairchild / ON Semiconductor)

The KA7805 delivers a stable 5V output at up to 1A and includes built-in protection circuits. Its pin compatibility and similar electrical behavior allow seamless replacement in power adapters, industrial modules, and consumer electronics.

TA7805S (Toshiba)

A high-reliability 5V regulator with low noise and integrated protection. The TO-220 package and electrical profile make it a reliable alternative for communication devices,  nstrumentation, and regulated power supply designs.

AMS7805 (AMS)

A precision 5V regulator featuring excellent load regulation and low output noise. Suitable for analog circuits and embedded platforms, it offers easy drop-in compatibility with the L7805CV.

Stock & Pricing

Bulk pricing is available, and MOQ starts from 1 piece. Worldwide shipping is offered within 24–48 hours via DHL, FedEx, UPS, or dedicated logistics channels. Long-term supply programs and BOM support are available upon request.

Why Buy from Mozelectronics?

• 100% original and traceable components
• ISO-certified suppliers and strict quality control
• Anti-counterfeit testing services available
• Fast global delivery with professional packaging
• Full BOM support for prototypes and mass production

FAQ About L7805CV LDO Regulators

Is L7805CV still in production? Yes. It is an active device manufactured by STMicroelectronics. What is the equivalent of L7805CV? MC7805CT, LM7805, KA7805, TA7805S, and AMS7805 are commonly used alternatives. How do I buy L7805CV? Submit your RFQ online and our sales team will respond with pricing and lead time. Do you offer bulk pricing? Yes, discounted pricing is available for volume orders. Do you ship worldwide? Yes, we ship globally via DHL, FedEx, UPS, and other carriers.