Overview
The L7805CT is a linear voltage regulator produced by STMicroelectronics. It is part of the L78 series, which is known for its reliability and versatility in various electronic applications. This regulator is designed to provide a fixed output voltage of 5V with a maximum output current of 1.5A. It is packaged in a TO-3 (TO-204AA) case, making it suitable for through-hole mounting. The L7805CT is widely used in power supply systems where stable and regulated voltage is essential.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Category | Integrated Circuits (ICs) - PMIC - Voltage Regulators - Linear |
| Package | TO-204AA, TO-3 |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage Dropout (Max) | 2V @ 1A (Typ) |
| Current - Output | 1.5A |
| Current - Supply (Max) | 8mA |
| PSRR | 62dB (120Hz) |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | 0°C ~ 125°C |
| Mounting Type | Through Hole |
Key Features
- Fixed output voltage of 5V with a maximum output current of 1.5A.
- Internal current limiting, thermal shutdown, and safe area protection, making it essentially indestructible.
- High power supply rejection ratio (PSRR) of 62dB at 120Hz.
- Low dropout voltage of 2V at 1A.
- Operating temperature range from 0°C to 125°C.
- Through-hole mounting in TO-3 (TO-204AA) package.
- Short circuit and over-temperature protection.
Applications
The L7805CT is versatile and can be used in a variety of applications where a stable 5V voltage supply is required. Some common uses include:
- Power supply systems for electronic devices.
- Local on-card regulation to eliminate distribution problems associated with single-point regulation.
- Industrial control systems.
- Consumer electronics.
- Automotive systems.
Q & A
- What is the output voltage of the L7805CT?
The output voltage of the L7805CT is fixed at 5V. - What is the maximum output current of the L7805CT?
The maximum output current is 1.5A. - What is the package type of the L7805CT?
The L7805CT is packaged in a TO-3 (TO-204AA) case. - What are the protection features of the L7805CT?
The L7805CT features over-temperature and short-circuit protection. - What is the operating temperature range of the L7805CT?
The operating temperature range is from 0°C to 125°C. - What is the power supply rejection ratio (PSRR) of the L7805CT?
The PSRR is 62dB at 120Hz. - Can the L7805CT be used for adjustable voltage regulation?
Although designed primarily as a fixed voltage regulator, the L7805CT can be used with external components to obtain adjustable voltage and currents. - What is the dropout voltage of the L7805CT?
The dropout voltage is 2V at 1A. - Is the L7805CT RoHS compliant?
Yes, the L7805CT is RoHS compliant. - What is the quiescent current of the L7805CT?
The quiescent current is 8mA.
